Zapalenie kości i szpiku
Etiologia i przyczyny
Zapalenie kości i szpiku (osteomyelitis) to infekcyjne zapalenie prowadzące do destrukcji tkanki kostnej i reaktywnej osteogenezy. Najczęstszym patogenem jest Staphylococcus aureus, odpowiedzialny za 80-90% przypadków, zwłaszcza w ostrej i przewlekłej formie. Inne bakterie, takie jak Staphylococcus epidermidis, Pseudomonas aeruginosa, Escherichia coli czy Streptococcus pyogenes, występują w określonych kontekstach klinicznych, np. u pacjentów z implantami, narkomanów dożylnych czy dzieci. Drogi zakażenia obejmują zakażenie krwiopochodne (20% u dorosłych, częste u dzieci), bezpośrednie zakażenie po urazach, zabiegach chirurgicznych lub iniekcjach oraz rozprzestrzenianie się infekcji z tkanek miękkich i stawów. Patogeneza obejmuje adhezję bakterii do macierzy kostnej, reakcję zapalną prowadzącą do martwicy kości (sekwestr), a także tworzenie biofilmu, który utrudnia skuteczne leczenie antybiotykami.
- Etiologia zapalenia kości i szpiku
- Patogeneza zapalenia kości i szpiku
- Czynniki ryzyka zapalenia kości i szpiku
- Klasyfikacja zapalenia kości i szpiku
- Specyficzne sytuacje kliniczne
- Zapalenie kości i szpiku u dzieci
- Zapalenie kości i szpiku w szczególnych grupach ryzyka
- Zapalenie kości i szpiku kręgosłupa
- Podsumowanie etiologii zapalenia kości i szpiku
Etiologia zapalenia kości i szpiku
Zapalenie kości i szpiku (osteomyelitis) to poważne schorzenie zapalne kości spowodowane procesem infekcyjnym. Proces ten charakteryzuje się postępującym zapalnym niszczeniem tkanki kostnej i tworzeniem nowej kości w odpowiedzi na stan zapalny. Prawidłowa, nienaruszona kość jest zazwyczaj odporna na zakażenia, jednak staje się podatna na infekcję w przypadku ekspozycji na duże stężenie patogenów, urazu, niedokrwienia lub obecności ciał obcych, które odsłaniają miejsca wiązania mikroorganizmów w kości1.
Czynniki zakaźne powodujące zapalenie kości i szpiku
Zapalenie kości i szpiku może być wywołane przez różne mikroorganizmy, przy czym bakterie są najczęstszymi czynnikami etiologicznymi2. Zdecydowanie najczęstszym patogenem wywołującym zarówno ostre, jak i przewlekłe zapalenie kości i szpiku jest Staphylococcus aureus, odpowiedzialny za 80-90% wszystkich zakażeń kości34. Bakterie te są powszechnie obecne na skórze i w jamie nosowej nawet u zdrowych osób5.
Inne bakterie często izolowane w przypadkach zapalenia kości i szpiku to:
- Staphylococcus epidermidis – zwłaszcza w przypadkach dotyczących protez stawowych67
- Pseudomonas aeruginosa – szczególnie u osób używających dożylnie narkotyki8
- Serratia marcescens i Escherichia coli – często spotykane w przewlekłym zapaleniu kości i szpiku9
- Streptococcus pyogenes i Haemophilus influenzae – często występujące u dzieci10
- Propionibacterium acnes – zwłaszcza w przypadkach związanych z implantami kręgosłupa11
Specyficzne patogeny mogą być związane z konkretnymi sytuacjami klinicznymi:
- Salmonella – częsta u pacjentów z niedokrwistością sierpowatokrwinkową12
- Pasteurella multocida – związana z ugryzienia przez koty i psy13
- Mycobacterium tuberculosis – może wywoływać zapalenie kręgów (choroba Potta)14
Zakażenia grzybicze kości, choć rzadsze, mogą występować u pacjentów z obszarów endemicznych (np. histoplazmoza, blastomykoza), u osób z osłabionym układem odpornościowym (np. Aspergillus fumigatus), u osób zażywających dożylnie narkotyki oraz u pacjentów z założonymi cewnikami dożylnymi (np. Candida i Aspergillus)15.
Drogi zakażenia kości
Istnieją trzy główne drogi, którymi patogeny mogą dotrzeć do kości i wywołać zapalenie kości i szpiku16:
Zakażenie krwiopochodne (hematogenne)
Zakażenie krwiopochodne to najczęstsza droga zakażenia kości u dzieci i stanowi około 20% przypadków zapalenia kości i szpiku u dorosłych17. W tym przypadku bakterie lub inne patogeny dostają się do krwiobiegu z innego miejsca infekcji w organizmie, takiego jak:
- Infekcje dróg oddechowych (np. zapalenie płuc)18
- Zakażenia układu moczowego19
- Zakażenia skóry20
- Zakażenia związane z cewnikami dożylnymi lub dializą21
Bakterie przemieszczają się przez krwiobieg i osiedlają w kości, preferując miejsca o zwiększonym przepływie krwi lub osłabione obszary kości. U dzieci zakażenie najczęściej występuje w nasadach kości długich kończyn, natomiast u dorosłych częściej dotyczy kręgów kręgosłupa22.
Bezpośrednie zakażenie kości
Bezpośrednie zakażenie kości może nastąpić w wyniku:
- Urazu penetrującego – głębokie rany, takie jak rany kłute, mogą przenieść bakterie głęboko do wnętrza organizmu, powodując infekcję, która może rozprzestrzenić się na pobliską kość23
- Złamania otwartego – gdy złamana kość przebija skórę, staje się narażona na zakażenie bakteryjne24
- Zabiegu chirurgicznego – zwłaszcza operacji ortopedycznych, takich jak wymiana stawu czy zespolenie złamania25
- Iniekcji – w tym zastrzyków leków lub narkotyków dożylnych26
Zakażenie z sąsiadujących tkanek
Trzecią drogą zakażenia jest rozprzestrzenienie się infekcji z przylegających tkanek miękkich lub stawów27. Może to obejmować:
- Zapalenie tkanek miękkich i cellulitis28
- Zakażone owrzodzenia skóry, zwłaszcza u diabetyków (stopa cukrzycowa)29
- Zapalenie stawów (septyczne zapalenie stawów)30
- Odleżyny – długotrwały ucisk może prowadzić do martwicy tkanek i wtórnego zakażenia31
Patogeneza zapalenia kości i szpiku
Patogeneza zapalenia kości i szpiku jest złożonym procesem, który obejmuje interakcję między czynnikami etiologicznymi a odpowiedzią gospodarza. Proces ten prowadzi do postępującego niszczenia tkanki kostnej i powstawania nowej kości w odpowiedzi na stan zapalny32.
Mechanizmy patogenezy
Po wniknięciu do kości bakterie, zwłaszcza Staphylococcus aureus, przylegają do macierzy kostnej poprzez ekspresję receptorów zwanych adhezynami, które wiążą się z komponentami macierzy kostnej, takimi jak laminina, kolagen, fibronektyna i kostna sjaloglikoproteina33. Ten proces adhezji umożliwia bakteriom kolonizację kości.
Następnie organizm gospodarza reaguje na obecność bakterii w nasadzie zwiększoną przepuszczalnością naczyń, co prowadzi do obrzęku, zwiększonego unaczynienia i napływu neutrofilów34. Ta reakcja zapalna może jednak prowadzić do przerwania dopływu krwi do zajętego obszaru, co skutkuje martwicą kości.
W miarę postępu infekcji występuje:
- Ropny stan zapalny w kości35
- Martwica osteoblastów36
- Aktywacja osteoklastów37
- Uwolnienie mediatorów zapalnych38
- Zakrzepica naczyń krwionośnych39
Uniesienie okostnej pozbawia leżącą pod nią korę kości dopływu krwi, prowadząc do martwicy kości (sekwestr)40. Martwicza kość działa jako ciało obce, utrudniając eliminację bakterii, dopóki sekwestr nie zostanie usunięty41.
Rola biofilmu bakteryjnego
Jednym z kluczowych mechanizmów, które utrudniają leczenie zapalenia kości i szpiku, jest zdolność bakterii do tworzenia biofilmu. Biofilm charakteryzuje się tym, że bakterie wchodzą w fazę bezruchu (fazę stacjonarną), co czyni je bardziej odpornymi na antybiotyki, które do działania wymagają replikacji bakterii42.
Antybiotyki są mniej skuteczne z powodu trudności w penetracji biofilmu oraz obniżenia przez bakterie tempa metabolizmu43. Ta cecha niektórych bakterii, pozwalająca im przylegać do kości i chirurgicznie wszczepionych urządzeń, po czym wykazywać fenotypową oporność na antybiotykoterapię i zdolność do przeżycia wewnątrzkomórkowego, może wyjaśniać uporczywość zakażeń kości i wysokie wskaźniki niepowodzeń krótszych kursów leczenia przeciwdrobnoustrojowego44.
Czynniki ryzyka zapalenia kości i szpiku
Istnieje wiele czynników, które mogą zwiększać ryzyko rozwoju zapalenia kości i szpiku. Można je podzielić na czynniki ogólnoustrojowe i miejscowe45.
Ogólnoustrojowe czynniki ryzyka
Do ogólnoustrojowych czynników predysponujących do zapalenia kości i szpiku należą:
- Cukrzyca – szczególnie źle kontrolowana, która może prowadzić do owrzodzeń stopy cukrzycowej i zakażenia kości4647
- Osłabiony układ odpornościowy – spowodowany chorobami takimi jak HIV/AIDS, chemioterapią, chronicznym stosowaniem steroidów lub innymi stanami immunosupresyjnymi4849
- Hemoliza – w tym pacjenci poddawani dializom50
- Niedokrwistość sierpowatokrwinkowa – zwiększa ryzyko zakażeń Salmonella51
- Nadużywanie narkotyków dożylnych – może wprowadzić bakterie bezpośrednio do krwiobiegu52
- Niedożywienie53
- Niewydolność nerek i wątroby54
- Przewlekła hipoksja55
- Nowotwory56
Miejscowe czynniki ryzyka
Do miejscowych czynników zwiększających ryzyko zapalenia kości i szpiku należą:
- Złamania otwarte – gdy złamana kość przebija skórę, umożliwiając bakteriom dostęp do kości57
- Zabiegi chirurgiczne – zwłaszcza operacje ortopedyczne, takie jak całkowita wymiana stawu58
- Implanty ortopedyczne – metalowe pręty, śruby lub płyty używane do stabilizacji złamań59
- Urazy przenikające – rany kłute, ugryzienia zwierząt i inne urazy, które naruszają integralność skóry60
- Przewlekłe owrzodzenia skóry – zwłaszcza u pacjentów z cukrzycą lub chorobami naczyniowymi61
- Chroniczny obrzęk limfatyczny62
- Zastój żylny63
- Choroby naczyń małych i dużych64
- Zapalenie tętnic65
- Neuropatia obwodowa66
- Używanie tytoniu67
Klasyfikacja zapalenia kości i szpiku
Zapalenie kości i szpiku można klasyfikować na różne sposoby, w zależności od czasu trwania infekcji, mechanizmu zakażenia lub lokalizacji anatomicznej68.
Klasyfikacja czasowa
Historycznie zapalenie kości i szpiku było kategoryzowane jako ostre, podostre lub przewlekłe, przy czym prezentacja każdego typu opierała się na czasie wystąpienia choroby (tzn. wystąpienia zakażenia lub urazu)69:
- Ostre zapalenie kości i szpiku – rozwija się w ciągu dwóch tygodni od początku choroby
- Podostre zapalenie kości i szpiku – rozwija się w okresie od jednego do kilku miesięcy
- Przewlekłe zapalenie kości i szpiku – rozwija się po kilku miesiącach i charakteryzuje się obecnością martwej kości (sekwestr)70
Przewlekłe zapalenie kości i szpiku może nie reagować na leczenie i nawracać przez długi czas. W wielu przypadkach przewlekłe zapalenie kości i szpiku jest polimikrobialne, co oznacza, że zaangażowany jest więcej niż jeden czynnik zakaźny71.
Klasyfikacja patogenetyczna
Na podstawie patogenezy zakażenia zapalenie kości i szpiku można podzielić na dwie główne kategorie72:
- Zapalenie kości i szpiku krwiopochodne (hematogenne) – gdy patogeny rozprzestrzeniają się do kości poprzez krwiobieg
- Zapalenie kości i szpiku niekrwiopochodne – które rozwija się w sąsiedztwie miejsca zakażenia (kontaktowe) lub poprzez bezpośrednie wprowadzenie zakażenia do kości (jatrogenne)
Zarówno krwiopochodne, jak i kontaktowe zapalenie kości i szpiku można klasyfikować jako ostre lub przewlekłe. Ostre zapalenie kości i szpiku rozwija się przez kilka dni do kilku tygodni i może postępować do zakażenia przewlekłego73.
Ropień Brodiego
Ropień Brodiego to forma podostrego zapalenia kości i szpiku, która zwykle ma pochodzenie krwiopochodne, ale może wystąpić w wyniku urazu; klasyczna prezentacja ropnia Brodiego składa się z jamy wypełnionej ropą i/lub ziarniną w przynasadzie kości długiej, otoczonej gęstą tkanką włóknistą i sklerotyczną kością74.
Specyficzne sytuacje kliniczne
Istnieją pewne szczególne sytuacje kliniczne, w których zapalenie kości i szpiku może mieć odmienną etiologię lub przebieg. Omówione zostaną najważniejsze z nich.
Zapalenie kości i szpiku u dzieci
U dzieci zapalenie kości i szpiku najczęściej jest pochodzenia krwiopochodnego i zazwyczaj występuje w przynasadach kości długich kończyn75. Najczęstszym patogenem jest Staphylococcus aureus, odpowiedzialny za nawet 90% przypadków ostrego krwiopochodnego zapalenia kości i szpiku u dotychczas zdrowych dzieci76.
Inne bakterie często powodujące zapalenie kości i szpiku u dzieci to:
- Streptococcus grupa B – u noworodków77
- Streptococcus pyogenes i Haemophilus influenzae – u dzieci w wieku 1-16 lat78
- Kingella kingae – staje się coraz częstsza w młodszych grupach wiekowych79
U dzieci zapalenie kości i szpiku może być również związane z traumą, a historia urazu jest zgłaszana u 30% pacjentów80.
Zapalenie kości i szpiku w szczególnych grupach ryzyka
Niektóre grupy pacjentów są szczególnie narażone na specyficzne patogeny powodujące zapalenie kości i szpiku:
Pacjenci z cukrzycą
Pacjenci z cukrzycą, zwłaszcza z owrzodzeniami stopy cukrzycowej, są narażeni na zakażenia polimikrobialne81. Cukrzyca może powodować uszkodzenie nerwów i naczyń krwionośnych, co osłabia kości, szczególnie w stopach. Wysokie stężenie glukozy we krwi osłabia układ odpornościowy i „karmi” bakterie82.
Pacjenci z niedokrwistością sierpowatokrwinkową
U pacjentów z niedokrwistością sierpowatokrwinkową zapalenie kości i szpiku jest często spowodowane przez Salmonella lub Streptococcus pneumoniae83. Niedokrwistość sierpowatokrwinkowa wpływa na kształt czerwonych krwinek i spowalnia przepływ krwi, co zwiększa ryzyko zakażeń84.
Pacjenci z HIV/AIDS
U pacjentów z HIV zapalenie kości i szpiku może być spowodowane przez Bartonella henselae, Mycobacterium tuberculosis85 lub kompleks Mycobacterium avium86.
Osoby używające narkotyków drogą dożylną
U osób używających narkotyków dożylnych zapalenie kości i szpiku jest często polimikrobialne87 i może być spowodowane przez Pseudomonas i Candida88.
Osoby z implantami ortopedycznymi
U pacjentów z implantami ortopedycznymi zapalenie kości i szpiku często spowodowane jest przez Staphylococcus epidermidis i Propionibacterium acnes, zwłaszcza u pacjentów z urządzeniami do stabilizacji kręgosłupa89.
Zapalenie kości i szpiku kręgosłupa
Zapalenie kości i szpiku kręgosłupa jest najczęstszą lokalizacją krwiopochodnego zapalenia kości i szpiku u dorosłych90. Jest ono zazwyczaj spowodowane przez pojedynczy patogen, przy czym S. aureus jest najczęstszym czynnikiem etiologicznym, zwłaszcza w przypadkach rozsiewu krwiopochodnego91.
Z kolei koagulazo-ujemne gronkowce i P. acnes są najczęstszymi patogenami w egzogennym zapaleniu kości i szpiku po operacji kręgosłupa, zwłaszcza u pacjentów z urządzeniami do stabilizacji kręgosłupa92.
Zapalenie kości i szpiku kręgosłupa spowodowane przez alternatywne patogeny, takie jak Mycobacterium tuberculosis lub Brucella, może występować w regionach endemicznych i u pacjentów z obniżoną odpornością93.
Podsumowanie etiologii zapalenia kości i szpiku
Zapalenie kości i szpiku jest poważną infekcją kości, która może być spowodowana przez różne patogeny, przy czym Staphylococcus aureus jest najczęstszym czynnikiem etiologicznym. Infekcja może dotrzeć do kości drogą krwiopochodną, przez bezpośrednie zakażenie lub rozprzestrzenianie się z sąsiednich tkanek94.
Różne czynniki ryzyka, w tym cukrzyca, osłabiony układ odpornościowy, urazy, zabiegi chirurgiczne i implanty ortopedyczne, mogą zwiększać podatność na zapalenie kości i szpiku95.
Patogeneza zakażenia obejmuje adhezję bakterii do kości, odpowiedź zapalną gospodarza, tworzenie biofilmu bakteryjnego i ostatecznie martwicę kości96.
Wczesne rozpoznanie i leczenie są kluczowe dla pomyślnego wyniku, ponieważ jeśli nie jest leczone szybko, zapalenie kości i szpiku może powodować poważne, długotrwałe problemy, takie jak infekcje i trwałe uszkodzenie kości97.
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Materiały źródłowe
- #1 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Osteomyelitis is a serious infection of the bone that can be either acute or chronic. It is an inflammatory process involving the bone and its structures caused by pyogenic organisms that spread through the bloodstream, fractures, or surgery. […] Healthy intact bone is resistant to infection. The bone becomes susceptible to disease with the introduction of a large inoculum of bacteria, from trauma, ischemia, or the presence of foreign bodies because bone sites to which microorganisms can bind are exposed. […] Certain bacteria such as Staphylococcus aureus adhere to the bone by expressing receptors, called adhesins, for some components of the bone matrix, including laminin, collagen, fibronectin, and bone sialoglycoprotein. […] The characteristic of some bacteria to adhere to the bone and surgically implanted devices following which they express phenotypic resistance to antibiotic therapy and their ability to survive intracellularly may explain the persistence of bone infections and high failure rates of shorter courses of antimicrobial treatment.
- #2 Osteomyelitis | Better Health Channelhttps://www.betterhealth.vic.gov.au/health/conditionsandtreatments/osteomyelitis
Osteomyelitis means an infection of bone, which can either be acute or chronic. […] Bacteria are the most common infectious agents. […] The two likely access methods include primary blood infection or secondary infection following an infection somewhere else in the body, and a wound or injury that permits bacteria to reach the bone. […] Bones are infected by blood-borne micro-organisms. In most cases, the micro-organisms are bacteria such as Staphylococcus aureus, but fungi can also cause osteomyelitis. Some of the conditions and events that can lead to osteomyelitis include: Bacteria introduced during bone surgery. Bacteria introduced by trauma to bone. Infection of bone fractures. Infection of prosthetic implants (such as an artificial hip joint). Infections elsewhere in the body that reach the bones via the bloodstream. A primary infection of the blood (septicaemia). […] An acute attack of osteomyelitis can lead to chronic osteomyelitis, characterised by dead areas of bone. This condition can fail to respond to treatment and recur for a long time. In many cases, chronic osteomyelitis is polymicrobial, which means more than one infectious agent is involved.
- #3 Osteomyelitis | Radiology Reference Article | Radiopaedia.orghttps://radiopaedia.org/articles/osteomyelitis?lang=us
Osteomyelitis (plural: osteomyelitides) refers to infection, typically bacterial, of bone involving the medullary cavity. […] In most instances, osteomyelitis results from hematogenous spread, although direct extension from trauma and/or ulcers is relatively common (especially in the feet of diabetic patients). […] Although no organisms are cultured from tissue sampling in ~35% (range 21-50%) of cases, when one is isolated, Staphylococcus aureus is by far the most common pathogen. Different organisms are more common in specific clinical scenarios: Staphylococcus aureus: 80-90% of all infections; includes methicillin-resistant isolates (MRSA). […] Other uncommon infective agents include fungi (see: fungal osteomyelitis).
- #4 Osteomyelitis Causes, Symptoms, Treatment, Medicationshttps://www.medicinenet.com/osteomyelitis/article.htm
Osteomyelitis is an infection in the bone. […] There are several different ways to develop bone infection of osteomyelitis. The first is for bacteria to travel through the bloodstream (bacteremia) and spread to the bone, causing an infection (hematogenous osteomyelitis). […] An open wound from a trauma (post-traumatic wound) over a bone can lead to osteomyelitis. […] Recent surgery or injection in or around a bone can also expose the bone to bacteria and lead to periostitis, an infection of the surface membrane of the bone. […] The most common types of bacteria that cause osteomyelitis are Staphylococcus (including methicillin-resistant Staphylococcus aureus or MRSA), Pseudomonas, and Enterobacteriaceae. […] Patients with conditions or taking medications that weaken their immune systems are at a higher risk of developing osteomyelitis. Risk factors include cancer, chronic steroid use, sickle cell disease, human immunodeficiency virus (HIV), diabetes, hemodialysis, intravenous drug users, infants, and the elderly.
- #5 Osteomyelitis | Beacon Health Systemhttps://www.beaconhealthsystem.org/library/diseases-and-conditions/osteomyelitis?content_id=CON-20375896
Bones don’t get infected easily, but a serious injury, bloodstream infection or surgery may lead to a bone infection. […] Osteomyelitis is an infection in a bone. It can affect one or more parts of a bone. Infections can reach a bone through the bloodstream or from nearby infected tissue. Infections also can begin in the bone if an injury opens the bone to germs. […] Most often, staphylococcus bacteria cause osteomyelitis. These bacteria are germs that live on the skin or in the nose of all people. […] Germs can enter a bone through: The bloodstream. Germs in other parts of your body can travel through the blood to a weak spot on a bone. For instance, germs can come from pneumonia in the lungs or a urinary tract infection in the bladder. […] Injuries. Puncture wounds can carry germs deep inside the body. If such an injury becomes infected, the germs can spread into a nearby bone. Germs also can enter the body from a broken bone that sticks out through the skin. […] Surgery. Germs can enter the body and travel to bones during surgeries to replace joints or fix broken bones.
- #6 Diagnosis and Management of Osteomyelitis | AAFPhttps://www.aafp.org/pubs/afp/issues/2001/0615/p2413.html/1000
Acute osteomyelitis is the clinical term for a new infection in bone. This infection occurs predominantly in children and is often seeded hematogenously. In adults, osteomyelitis is usually a subacute or chronic infection that develops secondary to an open injury to bone and surrounding soft tissue. The specific organism isolated in bacterial osteomyelitis is often associated with the age of the patient or a common clinical scenario (i.e., trauma or recent surgery). Staphylococcus aureus is implicated in most patients with acute hematogenous osteomyelitis. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis. […] The specific microorganism(s) isolated from patients with bacterial osteomyelitis is often associated with the age of the patient or the clinical scenario. Staphylococcus aureus is implicated in most cases of acute hematogenous osteomyelitis and is responsible for up to 90 percent of cases in otherwise healthy children. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis.
- #7 Vertebral Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532256/
Vertebral osteomyelitis is typically caused by a single pathogen, with S aureus being the most common etiologic agent, especially in cases of hematogenous dissemination. […] Conversely, coagulase-negative staphylococci and P acnes are the most common pathogens in exogenous osteomyelitis following spinal surgery, particularly in patients with spinal fixation devices. […] Vertebral osteomyelitis caused by alternative pathogens, such as Mycobacterium tuberculosis or Brucella, may be seen in endemic regions and immunocompromised patients. […] Mycobacterium avium complex is a common pathogen in patients with HIV. […] Fungal vertebral osteomyelitis, although rare, can occur in patients from endemic regions (eg, histoplasmosis and blastomycosis), immunocompromised individuals (eg, Aspergillus fumigatus), IV drug users, and those with indwelling intravenous catheters (eg, Candida and Aspergillus).
- #8 Diagnosis and Management of Osteomyelitis | AAFPhttps://www.aafp.org/pubs/afp/issues/2001/0615/p2413.html/1000
Acute osteomyelitis is the clinical term for a new infection in bone. This infection occurs predominantly in children and is often seeded hematogenously. In adults, osteomyelitis is usually a subacute or chronic infection that develops secondary to an open injury to bone and surrounding soft tissue. The specific organism isolated in bacterial osteomyelitis is often associated with the age of the patient or a common clinical scenario (i.e., trauma or recent surgery). Staphylococcus aureus is implicated in most patients with acute hematogenous osteomyelitis. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis. […] The specific microorganism(s) isolated from patients with bacterial osteomyelitis is often associated with the age of the patient or the clinical scenario. Staphylococcus aureus is implicated in most cases of acute hematogenous osteomyelitis and is responsible for up to 90 percent of cases in otherwise healthy children. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis.
- #9 Diagnosis and Management of Osteomyelitis | AAFPhttps://www.aafp.org/pubs/afp/issues/2001/0615/p2413.html
The specific microorganism(s) isolated from patients with bacterial osteomyelitis is often associated with the age of the patient or the clinical scenario. Staphylococcus aureus is implicated in most cases of acute hematogenous osteomyelitis and is responsible for up to 90 percent of cases in otherwise healthy children. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis.
- #10 Osteomyelitis – Wikipediahttps://en.wikipedia.org/wiki/Osteomyelitis
Osteomyelitis is the infectious inflammation of bone marrow. The cause is usually a bacterial infection, but rarely can be a fungal infection. Risks for developing osteomyelitis include diabetes, intravenous drug use, prior removal of the spleen, and trauma to the area. Osteomyelitis is often caused by Staphylococcus aureus. In infants, S. aureus, Group B streptococci and Escherichia coli are commonly isolated; in children from one to 16 years of age, S. aureus, Streptococcus pyogenes, and Haemophilus influenzae are common. In some subpopulations, including intravenous drug users and splenectomized patients, Gram-negative bacteria, including enteric bacteria, are significant pathogens. The most common form of the disease in adults is caused by injury exposing the bone to local infection. Staphylococcus aureus is the most common organism seen in osteomyelitis, seeded from areas of contiguous infection. But anaerobes and Gram-negative organisms, including Pseudomonas aeruginosa, E. coli, and Serratia marcescens, are also common. Mixed infections are the rule rather than the exception. Systemic mycotic infections may also cause osteomyelitis. The two most common are Blastomyces dermatitidis and Coccidioides immitis. Osteomyelitis is a secondary complication in 13% of patients with pulmonary tuberculosis. In this case, the bacteria, in general, spread to the bone through the circulatory system, first infecting the synovium (due to its higher oxygen concentration) before spreading to the adjacent bone. In tubercular osteomyelitis, the long bones and vertebrae are the ones that tend to be affected.
- #11 Vertebral Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532256/
Vertebral osteomyelitis is typically caused by a single pathogen, with S aureus being the most common etiologic agent, especially in cases of hematogenous dissemination. […] Conversely, coagulase-negative staphylococci and P acnes are the most common pathogens in exogenous osteomyelitis following spinal surgery, particularly in patients with spinal fixation devices. […] Vertebral osteomyelitis caused by alternative pathogens, such as Mycobacterium tuberculosis or Brucella, may be seen in endemic regions and immunocompromised patients. […] Mycobacterium avium complex is a common pathogen in patients with HIV. […] Fungal vertebral osteomyelitis, although rare, can occur in patients from endemic regions (eg, histoplasmosis and blastomycosis), immunocompromised individuals (eg, Aspergillus fumigatus), IV drug users, and those with indwelling intravenous catheters (eg, Candida and Aspergillus).
- #12 Osteomyelitis Causeshttps://mobile.fpnotebook.com/Ortho/ID/OstmyltsCs.htm
Staphylococcus Aureus is the most common cause of hematogenous Osteomyelitis in Adults and children […] Staphylococcus Aureus accounts for one third of staphylococcal infections […] Staphylococcus Aureus is a common cause of Acute Contiguous Osteomyelitis […] Staphylococcus Aureus is a common cause of Chronic Osteomyelitis […] Diabetes Mellitus is associated with polymicrobial infections in Osteomyelitis […] Sickle Cell Anemia can lead to Osteomyelitis caused by Streptococcus Pneumoniae and Salmonella […] Human Immunodeficiency Virus (HIV) can lead to Osteomyelitis caused by Bartonella Henselae and Mycobacterium tuberculosis […] IV Drug Abuse is associated with a polymicrobial infection in Osteomyelitis.
- #13https://step2.medbullets.com/orthopedics/120523/osteomyelitis
Etiology: Note that infection can be due to bacteria, fungi, and mycobacteria. […] Microbiology: Staphylococcus aureus is the most common cause overall (including pediatric patients). […] Salmonella is a specific cause in sickle cell disease. […] Neisseria gonorrhoeae is rare. […] Staphylococcus epidermidis can also be seen in prosthetic joint involvement. […] Mycobacterium tuberculosis can also be seen in cases of vertebral involvement (Pott disease). […] Pasteurella multocida is seen in cases caused by cat and dog bites. […] Pseudomonas and Candida can also be seen in cases caused by intravenous drug abuse. […] Pathogenesis: hematogenous seeding of bone; contiguous spread of infection from adjacent structures (e.g., soft tissues and joints); direct inoculation (e.g., penetrating trauma and contaminated surgical tools).
- #14https://step2.medbullets.com/orthopedics/120523/osteomyelitis
Etiology: Note that infection can be due to bacteria, fungi, and mycobacteria. […] Microbiology: Staphylococcus aureus is the most common cause overall (including pediatric patients). […] Salmonella is a specific cause in sickle cell disease. […] Neisseria gonorrhoeae is rare. […] Staphylococcus epidermidis can also be seen in prosthetic joint involvement. […] Mycobacterium tuberculosis can also be seen in cases of vertebral involvement (Pott disease). […] Pasteurella multocida is seen in cases caused by cat and dog bites. […] Pseudomonas and Candida can also be seen in cases caused by intravenous drug abuse. […] Pathogenesis: hematogenous seeding of bone; contiguous spread of infection from adjacent structures (e.g., soft tissues and joints); direct inoculation (e.g., penetrating trauma and contaminated surgical tools).
- #15 Vertebral Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532256/
Vertebral osteomyelitis is typically caused by a single pathogen, with S aureus being the most common etiologic agent, especially in cases of hematogenous dissemination. […] Conversely, coagulase-negative staphylococci and P acnes are the most common pathogens in exogenous osteomyelitis following spinal surgery, particularly in patients with spinal fixation devices. […] Vertebral osteomyelitis caused by alternative pathogens, such as Mycobacterium tuberculosis or Brucella, may be seen in endemic regions and immunocompromised patients. […] Mycobacterium avium complex is a common pathogen in patients with HIV. […] Fungal vertebral osteomyelitis, although rare, can occur in patients from endemic regions (eg, histoplasmosis and blastomycosis), immunocompromised individuals (eg, Aspergillus fumigatus), IV drug users, and those with indwelling intravenous catheters (eg, Candida and Aspergillus).
- #16 Osteomyelitis – TeachMeSurgeryhttps://teachmesurgery.com/orthopaedic/principles/osteomyelitis/
Osteomyelitis is defined as an infection of bone, either acute or chronic. […] Most cases are acute and bacterial in origin, however it can also be chronic and rarely can even be fungal in origin. […] Osteomyelitis can be caused by 3 main routes: Haematogenous spread, Direct inoculation of micro-organisms into the bone (e.g. following an open fracture), Direct spread from nearby infection (e.g. adjacent septic arthritis). […] The most common causative organisms for osteomyelitis include S. aureus (most common), Streptococci, Enterobacteur spp., H. Influnzae, P. aeruginosa (especially in intravenous drug users), and Salmonella spp. (especially in patients with sickle cell disease). […] Risk factors for developing osteomyelitis include diabetes mellitus, immunosuppression (such as long term steroid treatment or AIDS), alcohol excess, or intravenous drug use.
- #17 Osteomyelitis: Practice Essentials, Anatomy, Pathophysiologyhttps://emedicine.medscape.com/article/967095-overview
Osteomyelitis is inflammation of the bone caused by an infecting organism. Although bone is normally resistant to bacterial colonization, it can become infected in multiple ways. The infecting organism may reach bone through blood or as a consequence of events such as trauma, surgery, the presence of foreign bodies, or the placement of prostheses that disrupt bony integrity and predispose to the onset of bone infection. […] The major cause of bone infections is Staphylococcus aureus; however, the causative organism depends on age and underlying conditions, among other factors. […] The major causes of osteomyelitis include the following: Primary – Hematogenous; Secondary – Secondary to trauma, surgery, or sepsis of any etiology. […] Approximately 20% of adult cases of osteomyelitis are hematogenous, which is more common in males for unknown reasons. […] The overall incidence of osteomyelitis is higher in developing countries.
- #18 Osteomyelitis – Symptoms and causes – Mayo Clinichttps://www.mayoclinic.org/diseases-conditions/osteomyelitis/symptoms-causes/syc-20375913
Most often, staphylococcus bacteria cause osteomyelitis. These bacteria are germs that live on the skin or in the nose of all people. […] Germs can enter a bone through: […] The bloodstream. Germs in other parts of your body can travel through the blood to a weak spot on a bone. For instance, germs can come from pneumonia in the lungs or a urinary tract infection in the bladder. […] Injuries. Puncture wounds can carry germs deep inside the body. If such an injury becomes infected, the germs can spread into a nearby bone. Germs also can enter the body from a broken bone that sticks out through the skin. […] Surgery. Germs can enter the body and travel to bones during surgeries to replace joints or fix broken bones.
- #19 Osteomyelitis | Beacon Health Systemhttps://www.beaconhealthsystem.org/library/diseases-and-conditions/osteomyelitis?content_id=CON-20375896
Bones don’t get infected easily, but a serious injury, bloodstream infection or surgery may lead to a bone infection. […] Osteomyelitis is an infection in a bone. It can affect one or more parts of a bone. Infections can reach a bone through the bloodstream or from nearby infected tissue. Infections also can begin in the bone if an injury opens the bone to germs. […] Most often, staphylococcus bacteria cause osteomyelitis. These bacteria are germs that live on the skin or in the nose of all people. […] Germs can enter a bone through: The bloodstream. Germs in other parts of your body can travel through the blood to a weak spot on a bone. For instance, germs can come from pneumonia in the lungs or a urinary tract infection in the bladder. […] Injuries. Puncture wounds can carry germs deep inside the body. If such an injury becomes infected, the germs can spread into a nearby bone. Germs also can enter the body from a broken bone that sticks out through the skin. […] Surgery. Germs can enter the body and travel to bones during surgeries to replace joints or fix broken bones.
- #20 Osteomyelitis (for Parents) | Nemours KidsHealthhttps://kidshealth.org/en/parents/osteomyelitis.html
Osteomyelitis is the medical term for inflammation in a bone. It’s usually caused by a bacterial infection. It often affects the long bones of the arms and legs but can happen in any bone. […] Bacteria can infect bones in a few ways. For instance: Bacteria can travel into the bone through the bloodstream from other infected areas in the body. This is called hematogenous osteomyelitis. It’s the most common way that kids get bone infections. A direct infection can happen when bacteria enter a wound and travel to the bone (like after an injury or surgery). Open fractures breaks in the bone with the skin also open are the injuries that most often develop osteomyelitis. Sometimes the bacteria can spread from a nearby infection. For example, an untreated infection in skin or a joint can spread to the bone. […] Some children have a higher risk of developing osteomyelitis, such as those with a weak immune system or chronic conditions like sickle cell disease.
- #21 Osteomyelitis Causes, Symptoms, Treatment, Medicationshttps://www.medicinenet.com/osteomyelitis/article.htm
Osteomyelitis is an infection in the bone. […] There are several different ways to develop bone infection of osteomyelitis. The first is for bacteria to travel through the bloodstream (bacteremia) and spread to the bone, causing an infection (hematogenous osteomyelitis). […] An open wound from a trauma (post-traumatic wound) over a bone can lead to osteomyelitis. […] Recent surgery or injection in or around a bone can also expose the bone to bacteria and lead to periostitis, an infection of the surface membrane of the bone. […] The most common types of bacteria that cause osteomyelitis are Staphylococcus (including methicillin-resistant Staphylococcus aureus or MRSA), Pseudomonas, and Enterobacteriaceae. […] Patients with conditions or taking medications that weaken their immune systems are at a higher risk of developing osteomyelitis. Risk factors include cancer, chronic steroid use, sickle cell disease, human immunodeficiency virus (HIV), diabetes, hemodialysis, intravenous drug users, infants, and the elderly.
- #22 Osteomyelitis – Bone, Joint, and Muscle Disorders – Merck Manual Consumer Versionhttps://www.merckmanuals.com/home/bone-joint-and-muscle-disorders/bone-and-joint-infections/osteomyelitis
Osteomyelitis is a bone infection usually caused by bacteria, mycobacteria, or fungi. […] Bacteria, mycobacteria, or fungi can infect bones by spreading through the bloodstream or, more often, by spreading from nearby infected tissue or a contaminated open wound. […] Injury, a foreign body (such as an infected artificial joint), and a decrease in the blood supply to organs or tissues (ischemia) may cause osteomyelitis. […] Most osteomyelitis results from direct invasion or infections in nearby soft tissues (such as a foot ulcer caused by poor circulation or diabetes). […] When organisms that cause osteomyelitis spread through the bloodstream, infection usually occurs in the ends of leg and arm bones in children and the spine (vertebrae) in adults, particularly older adults. […] Staphylococcus aureus is the bacteria that most commonly causes osteomyelitis that spreads via the bloodstream.
- #23 Osteomyelitis | UM Health-Sparrowhttps://www.uofmhealthsparrow.org/departments-conditions/conditions/osteomyelitis
Most often, staphylococcus bacteria cause osteomyelitis. These bacteria are germs that live on the skin or in the nose of all people. […] Germs can enter a bone through: […] The bloodstream. Germs in other parts of your body can travel through the blood to a weak spot on a bone. For instance, germs can come from pneumonia in the lungs or a urinary tract infection in the bladder. […] Injuries. Puncture wounds can carry germs deep inside the body. If such an injury becomes infected, the germs can spread into a nearby bone. Germs also can enter the body from a broken bone that sticks out through the skin. […] Surgery. Germs can enter the body and travel to bones during surgeries to replace joints or fix broken bones. […] Conditions that weaken the immune system. This includes diabetes that isn’t well-controlled.
- #24 Osteomyelitis | Beacon Health Systemhttps://www.beaconhealthsystem.org/library/diseases-and-conditions/osteomyelitis?content_id=CON-20375896
Bones don’t get infected easily, but a serious injury, bloodstream infection or surgery may lead to a bone infection. […] Osteomyelitis is an infection in a bone. It can affect one or more parts of a bone. Infections can reach a bone through the bloodstream or from nearby infected tissue. Infections also can begin in the bone if an injury opens the bone to germs. […] Most often, staphylococcus bacteria cause osteomyelitis. These bacteria are germs that live on the skin or in the nose of all people. […] Germs can enter a bone through: The bloodstream. Germs in other parts of your body can travel through the blood to a weak spot on a bone. For instance, germs can come from pneumonia in the lungs or a urinary tract infection in the bladder. […] Injuries. Puncture wounds can carry germs deep inside the body. If such an injury becomes infected, the germs can spread into a nearby bone. Germs also can enter the body from a broken bone that sticks out through the skin. […] Surgery. Germs can enter the body and travel to bones during surgeries to replace joints or fix broken bones.
- #25 Osteomyelitis Symptoms and Treatment | UPMC Infectious Diseasehttps://www.upmc.com/services/division-infectious-diseases/conditions/osteomyelitis
Osteomyelitis forms when an infection from bacteria or fungi spreads to the bone. Most often, the cause is a staph infection. These germs live on the skin of even healthy people. […] Bacteria can enter the bone through: […] Injuries. A traumatic injury (such as a puncture wound) may let germs travel deep into the body. […] IV lines or catheters. Medical tubing can be a pathway for germs to enter your body through the blood and, in time, cause a bone infection. […] Surgery. There’s a chance of infection with joint replacement surgery or any other surgery that involves bones or joints. […] The bloodstream. Germs can sometimes travel through the blood from a place of infection to a weak or compromised part of the bone.
- #26 Osteomyelitis | UM Health-Sparrowhttps://www.uofmhealthsparrow.org/departments-conditions/conditions/osteomyelitis
Peripheral artery disease. This is a condition in which narrowed arteries cut blood flow to the arms or legs. […] Sickle cell disease. This condition is passed through families, called inherited. Sickle cell disease affects the shape of red blood cells and slows blood flow. […] Dialysis and other procedures that use medical tubing. Dialysis uses tubes to remove waste from the body when the kidneys don’t work well. The medical tubes can carry germs from outside the body inside. […] Pressure injuries. People who can’t feel pressure or who stay in one position for too long can get sores on their skin where the pressure is. These sores are called pressure injuries. If a sore is there for a time, the bone under it can become infected. […] Illicit drugs by needles. People who take illicit drugs by needle are more likely to get osteomyelitis. This is true if they use needles that aren’t sterile and if they don’t clean the skin before using the needles.
- #27 Osteomyelitis – TeachMeSurgeryhttps://teachmesurgery.com/orthopaedic/principles/osteomyelitis/
Osteomyelitis is defined as an infection of bone, either acute or chronic. […] Most cases are acute and bacterial in origin, however it can also be chronic and rarely can even be fungal in origin. […] Osteomyelitis can be caused by 3 main routes: Haematogenous spread, Direct inoculation of micro-organisms into the bone (e.g. following an open fracture), Direct spread from nearby infection (e.g. adjacent septic arthritis). […] The most common causative organisms for osteomyelitis include S. aureus (most common), Streptococci, Enterobacteur spp., H. Influnzae, P. aeruginosa (especially in intravenous drug users), and Salmonella spp. (especially in patients with sickle cell disease). […] Risk factors for developing osteomyelitis include diabetes mellitus, immunosuppression (such as long term steroid treatment or AIDS), alcohol excess, or intravenous drug use.
- #28 Osteomyelitis – TeachMeSurgeryhttps://teachmesurgery.com/orthopaedic/principles/osteomyelitis/
Soft tissue infection can therefore increase the risk of osteomyelitis developing. […] Recurrence of infection can occur, often associated with premature cessation of antibiotics. Chronic osteomyelitis can occur in immunocompromised patient, under-treated patients, or virulent or resistant organisms.
- #29 Osteomyelitis | Radiology Reference Article | Radiopaedia.orghttps://radiopaedia.org/articles/osteomyelitis?lang=us
Osteomyelitis (plural: osteomyelitides) refers to infection, typically bacterial, of bone involving the medullary cavity. […] In most instances, osteomyelitis results from hematogenous spread, although direct extension from trauma and/or ulcers is relatively common (especially in the feet of diabetic patients). […] Although no organisms are cultured from tissue sampling in ~35% (range 21-50%) of cases, when one is isolated, Staphylococcus aureus is by far the most common pathogen. Different organisms are more common in specific clinical scenarios: Staphylococcus aureus: 80-90% of all infections; includes methicillin-resistant isolates (MRSA). […] Other uncommon infective agents include fungi (see: fungal osteomyelitis).
- #30 Osteomyelitis – TeachMeSurgeryhttps://teachmesurgery.com/orthopaedic/principles/osteomyelitis/
Osteomyelitis is defined as an infection of bone, either acute or chronic. […] Most cases are acute and bacterial in origin, however it can also be chronic and rarely can even be fungal in origin. […] Osteomyelitis can be caused by 3 main routes: Haematogenous spread, Direct inoculation of micro-organisms into the bone (e.g. following an open fracture), Direct spread from nearby infection (e.g. adjacent septic arthritis). […] The most common causative organisms for osteomyelitis include S. aureus (most common), Streptococci, Enterobacteur spp., H. Influnzae, P. aeruginosa (especially in intravenous drug users), and Salmonella spp. (especially in patients with sickle cell disease). […] Risk factors for developing osteomyelitis include diabetes mellitus, immunosuppression (such as long term steroid treatment or AIDS), alcohol excess, or intravenous drug use.
- #31 Osteomyelitis | UM Health-Sparrowhttps://www.uofmhealthsparrow.org/departments-conditions/conditions/osteomyelitis
Peripheral artery disease. This is a condition in which narrowed arteries cut blood flow to the arms or legs. […] Sickle cell disease. This condition is passed through families, called inherited. Sickle cell disease affects the shape of red blood cells and slows blood flow. […] Dialysis and other procedures that use medical tubing. Dialysis uses tubes to remove waste from the body when the kidneys don’t work well. The medical tubes can carry germs from outside the body inside. […] Pressure injuries. People who can’t feel pressure or who stay in one position for too long can get sores on their skin where the pressure is. These sores are called pressure injuries. If a sore is there for a time, the bone under it can become infected. […] Illicit drugs by needles. People who take illicit drugs by needle are more likely to get osteomyelitis. This is true if they use needles that aren’t sterile and if they don’t clean the skin before using the needles.
- #32https://www.orthobullets.com/trauma/1057/osteomyelitis–adult
Osteomyelitis is the infection of bone characterized by progressive inflammatory destruction and apposition of new bone. […] Diagnosis requires careful assessment of radiographs, MRI and determining the organism via biopsy and cultures. […] Treatment is often a combination of culture-directed antibiotics and surgical debridement of nonviable tissue. […] the exact incidence is unknown […] S. aureus is the most common organism […] most common etiology in children […] vertebrae are the most common hematogenous site in adults […] associated with previous surgery, trauma, wounds, or poor vascularity […] can be bacterial (most common), mycobacterial, or fungal in nature […] may be due to bacterial or viral systemic illness […] biofilm is characterized by bacteria entering a no-growth, or sessile, phase, which makes them even more resistant to antibiotics that depend on replication to carry out their effect […] antibiotics are less effective due to difficulty penetrating the biofilm and bacteria lowering their metabolic rate […] S. aureus is most common in adults.
- #33 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Osteomyelitis is a serious infection of the bone that can be either acute or chronic. It is an inflammatory process involving the bone and its structures caused by pyogenic organisms that spread through the bloodstream, fractures, or surgery. […] Healthy intact bone is resistant to infection. The bone becomes susceptible to disease with the introduction of a large inoculum of bacteria, from trauma, ischemia, or the presence of foreign bodies because bone sites to which microorganisms can bind are exposed. […] Certain bacteria such as Staphylococcus aureus adhere to the bone by expressing receptors, called adhesins, for some components of the bone matrix, including laminin, collagen, fibronectin, and bone sialoglycoprotein. […] The characteristic of some bacteria to adhere to the bone and surgically implanted devices following which they express phenotypic resistance to antibiotic therapy and their ability to survive intracellularly may explain the persistence of bone infections and high failure rates of shorter courses of antimicrobial treatment.
- #34https://www.atsu.edu/faculty/chamberlain/website/lectures/tritzid/osteomy.htm
Most osteomyelitis is of hematogenous origin. In about 25% of patients with osteomyelitis, the predisposing factor is trauma to the bone at or near the site of infection. Osteomyelitis is a purulent inflammation of bone caused most often by bacteria and only occasionally by other microorganisms. In order of frequency of infection the bacterial species are: Staphylococcus aureus, Streptococcus spp., Members of the Enterobacteriaceae, Bacteroides spp. – mandibular infections. […] The host responds to the presence of bacteria in the metaphysis with a local increase in vascular permeability, resulting in edema, increased vascularity and the influx of polymorphonuclear leukocytes. After the vascular supply to the involved area has been interrupted and necrosis has occurred, the chronic phase of osteomyelitis is established. The residual dead bone acts as a foreign body, making the eradication of bacteria impossible until the sequestrum is removed.
- #35 Diagnosis and Management of Osteomyelitis | AAFPhttps://www.aafp.org/pubs/afp/issues/2001/0615/p2413.html
Acute osteomyelitis is the clinical term for a new infection in bone. This infection occurs predominantly in children and is often seeded hematogenously. In adults, osteomyelitis is usually a subacute or chronic infection that develops secondary to an open injury to bone and surrounding soft tissue. The specific organism isolated in bacterial osteomyelitis is often associated with the age of the patient or a common clinical scenario (i.e., trauma or recent surgery). Staphylococcus aureus is implicated in most patients with acute hematogenous osteomyelitis. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis. […] Osteomyelitis is an inflammation of bone caused by a pyogenic organism. Historically, osteomyelitis has been categorized as acute, subacute or chronic, with the presentation of each type based on the time of disease onset (i.e., occurrence of infection or injury). Acute osteomyelitis develops within two weeks after disease onset, subacute osteomyelitis within one to several months and chronic osteomyelitis after a few months.
- #36https://www.orthobullets.com/pediatrics/4031/osteomyelitis–pediatric
Pseudomonas is associated with direct puncture wounds to the foot. […] H. influenza has become much less common with the advent of the Haemophilus influenza vaccine. […] Mycobacteria tuberculosis children are more likely to have extrapulmonary involvement. […] Salmonella more common in sickle cell patients. […] most cases are hematogenous. […] initial bacteremia may occur from a skin lesion, infection, or even trauma from tooth brushing. […] infection occurs after the local bone defenses have been overwhelmed by bacteria. […] spread through bone occurs via Haversian and Volkmann canal systems. […] purulence develops in conjunction with osteoblast necrosis, osteoclast activation, the release of inflammatory mediators, and blood vessel thrombosis. […] periosteal elevation deprives the underlying cortical bone of blood supply leading to necrotic bone (sequestrum).
- #37https://www.orthobullets.com/pediatrics/4031/osteomyelitis–pediatric
Pseudomonas is associated with direct puncture wounds to the foot. […] H. influenza has become much less common with the advent of the Haemophilus influenza vaccine. […] Mycobacteria tuberculosis children are more likely to have extrapulmonary involvement. […] Salmonella more common in sickle cell patients. […] most cases are hematogenous. […] initial bacteremia may occur from a skin lesion, infection, or even trauma from tooth brushing. […] infection occurs after the local bone defenses have been overwhelmed by bacteria. […] spread through bone occurs via Haversian and Volkmann canal systems. […] purulence develops in conjunction with osteoblast necrosis, osteoclast activation, the release of inflammatory mediators, and blood vessel thrombosis. […] periosteal elevation deprives the underlying cortical bone of blood supply leading to necrotic bone (sequestrum).
- #38https://www.orthobullets.com/pediatrics/4031/osteomyelitis–pediatric
Pseudomonas is associated with direct puncture wounds to the foot. […] H. influenza has become much less common with the advent of the Haemophilus influenza vaccine. […] Mycobacteria tuberculosis children are more likely to have extrapulmonary involvement. […] Salmonella more common in sickle cell patients. […] most cases are hematogenous. […] initial bacteremia may occur from a skin lesion, infection, or even trauma from tooth brushing. […] infection occurs after the local bone defenses have been overwhelmed by bacteria. […] spread through bone occurs via Haversian and Volkmann canal systems. […] purulence develops in conjunction with osteoblast necrosis, osteoclast activation, the release of inflammatory mediators, and blood vessel thrombosis. […] periosteal elevation deprives the underlying cortical bone of blood supply leading to necrotic bone (sequestrum).
- #39https://www.orthobullets.com/pediatrics/4031/osteomyelitis–pediatric
Pseudomonas is associated with direct puncture wounds to the foot. […] H. influenza has become much less common with the advent of the Haemophilus influenza vaccine. […] Mycobacteria tuberculosis children are more likely to have extrapulmonary involvement. […] Salmonella more common in sickle cell patients. […] most cases are hematogenous. […] initial bacteremia may occur from a skin lesion, infection, or even trauma from tooth brushing. […] infection occurs after the local bone defenses have been overwhelmed by bacteria. […] spread through bone occurs via Haversian and Volkmann canal systems. […] purulence develops in conjunction with osteoblast necrosis, osteoclast activation, the release of inflammatory mediators, and blood vessel thrombosis. […] periosteal elevation deprives the underlying cortical bone of blood supply leading to necrotic bone (sequestrum).
- #40https://www.orthobullets.com/pediatrics/4031/osteomyelitis–pediatric
Pseudomonas is associated with direct puncture wounds to the foot. […] H. influenza has become much less common with the advent of the Haemophilus influenza vaccine. […] Mycobacteria tuberculosis children are more likely to have extrapulmonary involvement. […] Salmonella more common in sickle cell patients. […] most cases are hematogenous. […] initial bacteremia may occur from a skin lesion, infection, or even trauma from tooth brushing. […] infection occurs after the local bone defenses have been overwhelmed by bacteria. […] spread through bone occurs via Haversian and Volkmann canal systems. […] purulence develops in conjunction with osteoblast necrosis, osteoclast activation, the release of inflammatory mediators, and blood vessel thrombosis. […] periosteal elevation deprives the underlying cortical bone of blood supply leading to necrotic bone (sequestrum).
- #41https://www.atsu.edu/faculty/chamberlain/website/lectures/tritzid/osteomy.htm
Most osteomyelitis is of hematogenous origin. In about 25% of patients with osteomyelitis, the predisposing factor is trauma to the bone at or near the site of infection. Osteomyelitis is a purulent inflammation of bone caused most often by bacteria and only occasionally by other microorganisms. In order of frequency of infection the bacterial species are: Staphylococcus aureus, Streptococcus spp., Members of the Enterobacteriaceae, Bacteroides spp. – mandibular infections. […] The host responds to the presence of bacteria in the metaphysis with a local increase in vascular permeability, resulting in edema, increased vascularity and the influx of polymorphonuclear leukocytes. After the vascular supply to the involved area has been interrupted and necrosis has occurred, the chronic phase of osteomyelitis is established. The residual dead bone acts as a foreign body, making the eradication of bacteria impossible until the sequestrum is removed.
- #42https://www.orthobullets.com/trauma/1057/osteomyelitis–adult
Osteomyelitis is the infection of bone characterized by progressive inflammatory destruction and apposition of new bone. […] Diagnosis requires careful assessment of radiographs, MRI and determining the organism via biopsy and cultures. […] Treatment is often a combination of culture-directed antibiotics and surgical debridement of nonviable tissue. […] the exact incidence is unknown […] S. aureus is the most common organism […] most common etiology in children […] vertebrae are the most common hematogenous site in adults […] associated with previous surgery, trauma, wounds, or poor vascularity […] can be bacterial (most common), mycobacterial, or fungal in nature […] may be due to bacterial or viral systemic illness […] biofilm is characterized by bacteria entering a no-growth, or sessile, phase, which makes them even more resistant to antibiotics that depend on replication to carry out their effect […] antibiotics are less effective due to difficulty penetrating the biofilm and bacteria lowering their metabolic rate […] S. aureus is most common in adults.
- #43https://www.orthobullets.com/trauma/1057/osteomyelitis–adult
Osteomyelitis is the infection of bone characterized by progressive inflammatory destruction and apposition of new bone. […] Diagnosis requires careful assessment of radiographs, MRI and determining the organism via biopsy and cultures. […] Treatment is often a combination of culture-directed antibiotics and surgical debridement of nonviable tissue. […] the exact incidence is unknown […] S. aureus is the most common organism […] most common etiology in children […] vertebrae are the most common hematogenous site in adults […] associated with previous surgery, trauma, wounds, or poor vascularity […] can be bacterial (most common), mycobacterial, or fungal in nature […] may be due to bacterial or viral systemic illness […] biofilm is characterized by bacteria entering a no-growth, or sessile, phase, which makes them even more resistant to antibiotics that depend on replication to carry out their effect […] antibiotics are less effective due to difficulty penetrating the biofilm and bacteria lowering their metabolic rate […] S. aureus is most common in adults.
- #44 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Osteomyelitis is a serious infection of the bone that can be either acute or chronic. It is an inflammatory process involving the bone and its structures caused by pyogenic organisms that spread through the bloodstream, fractures, or surgery. […] Healthy intact bone is resistant to infection. The bone becomes susceptible to disease with the introduction of a large inoculum of bacteria, from trauma, ischemia, or the presence of foreign bodies because bone sites to which microorganisms can bind are exposed. […] Certain bacteria such as Staphylococcus aureus adhere to the bone by expressing receptors, called adhesins, for some components of the bone matrix, including laminin, collagen, fibronectin, and bone sialoglycoprotein. […] The characteristic of some bacteria to adhere to the bone and surgically implanted devices following which they express phenotypic resistance to antibiotic therapy and their ability to survive intracellularly may explain the persistence of bone infections and high failure rates of shorter courses of antimicrobial treatment.
- #45 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #46 Osteomyelitishttps://www.nhs.uk/conditions/osteomyelitis/
Osteomyelitis is a painful bone infection. It usually goes away if treated early with antibiotics. It can cause serious long-term problems if it’s not treated. […] Anyone can develop osteomyelitis, but you’re more at risk of getting it if you have: had osteomyelitis before, diabetes, especially if you also have a foot ulcer, broken (fractured) a bone, been injured and have a wound, had an infection, had surgery, a weakened immune system (for example, because of chemotherapy, or you have a condition such as HIV). […] If it’s not treated quickly, osteomyelitis can cause serious long-term problems, such as infections and permanent damage to your bones. […] Osteomyelitis is treated with antibiotics. You may need treatment in hospital, or you might be able to take antibiotics at home. […] If the infection is treated quickly (within 3 to 5 days of it starting), it often clears up completely. […] If the infection has damaged the bone, you’ll need surgery (known as debridement) to remove the damaged part.
- #47 Osteomyelitis: A Bone-a-fide Overview of Risk Factors, Prevention, and Treatmenthttps://www.afmc.org/blog/osteomyelitis
Osteomyelitis is an infection of bone tissue that can arise from trauma, surgery, compromised blood flow (particularly in diabetes), or infections that spread through the bloodstream. […] Individuals at higher risk include older adults, men, children, and particularly those with diabetes (both type 1 and type 2), weakened immune systems, peripheral neuropathy, and vascular diseases. Additionally, trauma, such as motorcycle accidents or penetrating injuries, can significantly increase the risk. […] Several species of Staphylococcus infections are some of the most common causes, but most bacteria that can cause a bloodstream infection can also cause a bone infection. […] By far the most common type of patient I see with osteomyelitis are those with diabetes mellitus (both type 1 and type 2), Dr. Novack says. Diabetes can cause nerve and blood vessel damage that weakens the bones, especially in the feet. High blood sugars weaken the immune system and feed the bacteria.
- #48 Osteomyelitishttps://www.nhs.uk/conditions/osteomyelitis/
Osteomyelitis is a painful bone infection. It usually goes away if treated early with antibiotics. It can cause serious long-term problems if it’s not treated. […] Anyone can develop osteomyelitis, but you’re more at risk of getting it if you have: had osteomyelitis before, diabetes, especially if you also have a foot ulcer, broken (fractured) a bone, been injured and have a wound, had an infection, had surgery, a weakened immune system (for example, because of chemotherapy, or you have a condition such as HIV). […] If it’s not treated quickly, osteomyelitis can cause serious long-term problems, such as infections and permanent damage to your bones. […] Osteomyelitis is treated with antibiotics. You may need treatment in hospital, or you might be able to take antibiotics at home. […] If the infection is treated quickly (within 3 to 5 days of it starting), it often clears up completely. […] If the infection has damaged the bone, you’ll need surgery (known as debridement) to remove the damaged part.
- #49 Osteomyelitis – TeachMeSurgeryhttps://teachmesurgery.com/orthopaedic/principles/osteomyelitis/
Osteomyelitis is defined as an infection of bone, either acute or chronic. […] Most cases are acute and bacterial in origin, however it can also be chronic and rarely can even be fungal in origin. […] Osteomyelitis can be caused by 3 main routes: Haematogenous spread, Direct inoculation of micro-organisms into the bone (e.g. following an open fracture), Direct spread from nearby infection (e.g. adjacent septic arthritis). […] The most common causative organisms for osteomyelitis include S. aureus (most common), Streptococci, Enterobacteur spp., H. Influnzae, P. aeruginosa (especially in intravenous drug users), and Salmonella spp. (especially in patients with sickle cell disease). […] Risk factors for developing osteomyelitis include diabetes mellitus, immunosuppression (such as long term steroid treatment or AIDS), alcohol excess, or intravenous drug use.
- #50 Osteomyelitis – Musculoskeletal and Connective Tissue Disorders – Merck Manual Professional Editionhttps://www.merckmanuals.com/professional/musculoskeletal-and-connective-tissue-disorders/infections-of-joints-and-bones/osteomyelitis
Osteomyelitis is inflammation and destruction of bone caused by bacteria, mycobacteria, or fungi. […] Osteomyelitis is caused by (1) Contiguous spread from infected tissue or an infected prosthetic joint, Bloodborne organisms (hematogenous osteomyelitis), Open wounds (from contaminated open fractures or bone surgery). […] Trauma, ischemia, and foreign bodies predispose to osteomyelitis. Osteomyelitis may form under deep pressure ulcers (1). […] Contiguous spread from adjacent infected tissue or open wounds causes approximately 80% of osteomyelitis; it is often polymicrobial. […] Hematogenously spread osteomyelitis usually results from a single organism. […] Risk factors in adults are older age, debilitation, hemodialysis, sickle cell disease, and injection drug use. […] Fungi and mycobacteria can cause hematogenous osteomyelitis, usually in immunocompromised patients or in areas of endemic infection with histoplasmosis, blastomycosis, or coccidioidomycosis. […] Most osteomyelitis results from contiguous spread or open wounds and is often polymicrobial and/or involves S. aureus.
- #51 Osteomyelitis Causeshttps://mobile.fpnotebook.com/Ortho/ID/OstmyltsCs.htm
Staphylococcus Aureus is the most common cause of hematogenous Osteomyelitis in Adults and children […] Staphylococcus Aureus accounts for one third of staphylococcal infections […] Staphylococcus Aureus is a common cause of Acute Contiguous Osteomyelitis […] Staphylococcus Aureus is a common cause of Chronic Osteomyelitis […] Diabetes Mellitus is associated with polymicrobial infections in Osteomyelitis […] Sickle Cell Anemia can lead to Osteomyelitis caused by Streptococcus Pneumoniae and Salmonella […] Human Immunodeficiency Virus (HIV) can lead to Osteomyelitis caused by Bartonella Henselae and Mycobacterium tuberculosis […] IV Drug Abuse is associated with a polymicrobial infection in Osteomyelitis.
- #52 Osteomyelitis | UM Health-Sparrowhttps://www.uofmhealthsparrow.org/departments-conditions/conditions/osteomyelitis
Peripheral artery disease. This is a condition in which narrowed arteries cut blood flow to the arms or legs. […] Sickle cell disease. This condition is passed through families, called inherited. Sickle cell disease affects the shape of red blood cells and slows blood flow. […] Dialysis and other procedures that use medical tubing. Dialysis uses tubes to remove waste from the body when the kidneys don’t work well. The medical tubes can carry germs from outside the body inside. […] Pressure injuries. People who can’t feel pressure or who stay in one position for too long can get sores on their skin where the pressure is. These sores are called pressure injuries. If a sore is there for a time, the bone under it can become infected. […] Illicit drugs by needles. People who take illicit drugs by needle are more likely to get osteomyelitis. This is true if they use needles that aren’t sterile and if they don’t clean the skin before using the needles.
- #53 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #54 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #55 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #56 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #57 Osteomyelitis | Beacon Health Systemhttps://www.beaconhealthsystem.org/library/diseases-and-conditions/osteomyelitis?content_id=CON-20375896
Bones don’t get infected easily, but a serious injury, bloodstream infection or surgery may lead to a bone infection. […] Osteomyelitis is an infection in a bone. It can affect one or more parts of a bone. Infections can reach a bone through the bloodstream or from nearby infected tissue. Infections also can begin in the bone if an injury opens the bone to germs. […] Most often, staphylococcus bacteria cause osteomyelitis. These bacteria are germs that live on the skin or in the nose of all people. […] Germs can enter a bone through: The bloodstream. Germs in other parts of your body can travel through the blood to a weak spot on a bone. For instance, germs can come from pneumonia in the lungs or a urinary tract infection in the bladder. […] Injuries. Puncture wounds can carry germs deep inside the body. If such an injury becomes infected, the germs can spread into a nearby bone. Germs also can enter the body from a broken bone that sticks out through the skin. […] Surgery. Germs can enter the body and travel to bones during surgeries to replace joints or fix broken bones.
- #58 Osteomyelitis: Symptoms, Causes, and Treatmenthttps://www.webmd.com/diabetes/osteomyeltis-treatment-diagnosis-symptoms
Osteomyelitis is an infection of the bone, a rare but serious condition. Bones can become infected in a number of ways: Infection in one part of the body may spread through the bloodstream into the bone, or an open fracture or surgery may expose the bone to infection. […] In most cases, a bacteria called Staphylococcus aureus, a type of staph bacteria, causes osteomyelitis. […] Certain chronic conditions like diabetes may increase your risk for osteomyelitis. […] Certain conditions and behaviors that weaken the immune system increase a person’s risk for osteomyelitis, including: Diabetes (most cases of osteomyelitis stem from diabetes). […] Bone surgery, including hip and knee replacements, also increase the chance of bone infection. […] People with diabetes, HIV, or peripheral vascular disease are more prone to chronic osteomyelitis, which persists or recurs, despite treatment. […] Whether chronic or acute, osteomyelitis often affects an adult’s pelvis or vertebrae of the spine. It can also occur in the feet, especially in a person with diabetes.
- #59 Osteomyelitis | Beacon Health Systemhttps://www.beaconhealthsystem.org/library/diseases-and-conditions/osteomyelitis?content_id=CON-20375896
Bones don’t get infected easily, but a serious injury, bloodstream infection or surgery may lead to a bone infection. […] Osteomyelitis is an infection in a bone. It can affect one or more parts of a bone. Infections can reach a bone through the bloodstream or from nearby infected tissue. Infections also can begin in the bone if an injury opens the bone to germs. […] Most often, staphylococcus bacteria cause osteomyelitis. These bacteria are germs that live on the skin or in the nose of all people. […] Germs can enter a bone through: The bloodstream. Germs in other parts of your body can travel through the blood to a weak spot on a bone. For instance, germs can come from pneumonia in the lungs or a urinary tract infection in the bladder. […] Injuries. Puncture wounds can carry germs deep inside the body. If such an injury becomes infected, the germs can spread into a nearby bone. Germs also can enter the body from a broken bone that sticks out through the skin. […] Surgery. Germs can enter the body and travel to bones during surgeries to replace joints or fix broken bones.
- #60 Osteomyelitis | Beacon Health Systemhttps://www.beaconhealthsystem.org/library/diseases-and-conditions/osteomyelitis?content_id=CON-20375896
Bones don’t get infected easily, but a serious injury, bloodstream infection or surgery may lead to a bone infection. […] Osteomyelitis is an infection in a bone. It can affect one or more parts of a bone. Infections can reach a bone through the bloodstream or from nearby infected tissue. Infections also can begin in the bone if an injury opens the bone to germs. […] Most often, staphylococcus bacteria cause osteomyelitis. These bacteria are germs that live on the skin or in the nose of all people. […] Germs can enter a bone through: The bloodstream. Germs in other parts of your body can travel through the blood to a weak spot on a bone. For instance, germs can come from pneumonia in the lungs or a urinary tract infection in the bladder. […] Injuries. Puncture wounds can carry germs deep inside the body. If such an injury becomes infected, the germs can spread into a nearby bone. Germs also can enter the body from a broken bone that sticks out through the skin. […] Surgery. Germs can enter the body and travel to bones during surgeries to replace joints or fix broken bones.
- #61 Osteomyelitis – Musculoskeletal and Connective Tissue Disorders – Merck Manual Professional Editionhttps://www.merckmanuals.com/professional/musculoskeletal-and-connective-tissue-disorders/infections-of-joints-and-bones/osteomyelitis
Osteomyelitis is inflammation and destruction of bone caused by bacteria, mycobacteria, or fungi. […] Osteomyelitis is caused by (1) Contiguous spread from infected tissue or an infected prosthetic joint, Bloodborne organisms (hematogenous osteomyelitis), Open wounds (from contaminated open fractures or bone surgery). […] Trauma, ischemia, and foreign bodies predispose to osteomyelitis. Osteomyelitis may form under deep pressure ulcers (1). […] Contiguous spread from adjacent infected tissue or open wounds causes approximately 80% of osteomyelitis; it is often polymicrobial. […] Hematogenously spread osteomyelitis usually results from a single organism. […] Risk factors in adults are older age, debilitation, hemodialysis, sickle cell disease, and injection drug use. […] Fungi and mycobacteria can cause hematogenous osteomyelitis, usually in immunocompromised patients or in areas of endemic infection with histoplasmosis, blastomycosis, or coccidioidomycosis. […] Most osteomyelitis results from contiguous spread or open wounds and is often polymicrobial and/or involves S. aureus.
- #62 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #63 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #64 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #65 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #66 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #67 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Causes of systemic host compromise are malnutrition, renal and hepatic failure, diabetes mellitus, chronic hypoxia, neoplasm, and immunodeficiency disease. Local compromising factors of the host health status are chronic lymphedema, venous stasis, major and small vessel disease, arteritis, peripheral neuropathy, and tobacco use.
- #68 Diagnosis and Management of Osteomyelitis | AAFPhttps://www.aafp.org/pubs/afp/issues/2001/0615/p2413.html
Acute osteomyelitis is the clinical term for a new infection in bone. This infection occurs predominantly in children and is often seeded hematogenously. In adults, osteomyelitis is usually a subacute or chronic infection that develops secondary to an open injury to bone and surrounding soft tissue. The specific organism isolated in bacterial osteomyelitis is often associated with the age of the patient or a common clinical scenario (i.e., trauma or recent surgery). Staphylococcus aureus is implicated in most patients with acute hematogenous osteomyelitis. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis. […] Osteomyelitis is an inflammation of bone caused by a pyogenic organism. Historically, osteomyelitis has been categorized as acute, subacute or chronic, with the presentation of each type based on the time of disease onset (i.e., occurrence of infection or injury). Acute osteomyelitis develops within two weeks after disease onset, subacute osteomyelitis within one to several months and chronic osteomyelitis after a few months.
- #69 Diagnosis and Management of Osteomyelitis | AAFPhttps://www.aafp.org/pubs/afp/issues/2001/0615/p2413.html
Acute osteomyelitis is the clinical term for a new infection in bone. This infection occurs predominantly in children and is often seeded hematogenously. In adults, osteomyelitis is usually a subacute or chronic infection that develops secondary to an open injury to bone and surrounding soft tissue. The specific organism isolated in bacterial osteomyelitis is often associated with the age of the patient or a common clinical scenario (i.e., trauma or recent surgery). Staphylococcus aureus is implicated in most patients with acute hematogenous osteomyelitis. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis. […] Osteomyelitis is an inflammation of bone caused by a pyogenic organism. Historically, osteomyelitis has been categorized as acute, subacute or chronic, with the presentation of each type based on the time of disease onset (i.e., occurrence of infection or injury). Acute osteomyelitis develops within two weeks after disease onset, subacute osteomyelitis within one to several months and chronic osteomyelitis after a few months.
- #70 Pathogenesis of osteomyelitis – UpToDatehttps://www.uptodate.com/contents/pathogenesis-of-osteomyelitis
Osteomyelitis is an infection involving bone. […] Osteomyelitis may be divided into two major categories based upon the pathogenesis of infection: (1) hematogenous osteomyelitis and (2) nonhematogenous osteomyelitis, which develops adjacent to a contiguous focus of infection or via direct inoculation of infection into the bone. […] Either hematogenous or contiguous-focus osteomyelitis can be classified as acute or chronic. Acute osteomyelitis evolves over several days to weeks and can progress to a chronic infection. […] The hallmark of chronic osteomyelitis is the presence of dead bone (sequestrum). Other common features of chronic osteomyelitis include involucrum (reactive bony encasement of the sequestrum), local bone loss, and, if there is extension through cortical bone, sinus tracts.
- #71 Osteomyelitis | Better Health Channelhttps://www.betterhealth.vic.gov.au/health/conditionsandtreatments/osteomyelitis
Osteomyelitis means an infection of bone, which can either be acute or chronic. […] Bacteria are the most common infectious agents. […] The two likely access methods include primary blood infection or secondary infection following an infection somewhere else in the body, and a wound or injury that permits bacteria to reach the bone. […] Bones are infected by blood-borne micro-organisms. In most cases, the micro-organisms are bacteria such as Staphylococcus aureus, but fungi can also cause osteomyelitis. Some of the conditions and events that can lead to osteomyelitis include: Bacteria introduced during bone surgery. Bacteria introduced by trauma to bone. Infection of bone fractures. Infection of prosthetic implants (such as an artificial hip joint). Infections elsewhere in the body that reach the bones via the bloodstream. A primary infection of the blood (septicaemia). […] An acute attack of osteomyelitis can lead to chronic osteomyelitis, characterised by dead areas of bone. This condition can fail to respond to treatment and recur for a long time. In many cases, chronic osteomyelitis is polymicrobial, which means more than one infectious agent is involved.
- #72 Pathogenesis of osteomyelitis – UpToDatehttps://www.uptodate.com/contents/pathogenesis-of-osteomyelitis
Osteomyelitis is an infection involving bone. […] Osteomyelitis may be divided into two major categories based upon the pathogenesis of infection: (1) hematogenous osteomyelitis and (2) nonhematogenous osteomyelitis, which develops adjacent to a contiguous focus of infection or via direct inoculation of infection into the bone. […] Either hematogenous or contiguous-focus osteomyelitis can be classified as acute or chronic. Acute osteomyelitis evolves over several days to weeks and can progress to a chronic infection. […] The hallmark of chronic osteomyelitis is the presence of dead bone (sequestrum). Other common features of chronic osteomyelitis include involucrum (reactive bony encasement of the sequestrum), local bone loss, and, if there is extension through cortical bone, sinus tracts.
- #73 Pathogenesis of osteomyelitis – UpToDatehttps://www.uptodate.com/contents/pathogenesis-of-osteomyelitis
Osteomyelitis is an infection involving bone. […] Osteomyelitis may be divided into two major categories based upon the pathogenesis of infection: (1) hematogenous osteomyelitis and (2) nonhematogenous osteomyelitis, which develops adjacent to a contiguous focus of infection or via direct inoculation of infection into the bone. […] Either hematogenous or contiguous-focus osteomyelitis can be classified as acute or chronic. Acute osteomyelitis evolves over several days to weeks and can progress to a chronic infection. […] The hallmark of chronic osteomyelitis is the presence of dead bone (sequestrum). Other common features of chronic osteomyelitis include involucrum (reactive bony encasement of the sequestrum), local bone loss, and, if there is extension through cortical bone, sinus tracts.
- #74 Pathogenesis of osteomyelitis – UpToDatehttps://www.uptodate.com/contents/pathogenesis-of-osteomyelitis
Brodie abscess is a form of subacute osteomyelitis that is usually hematogenous in origin but can occur as a result of trauma; the classic presentation of Brodie abscess consists of a cavity filled with suppurative and/or granulation in a long bone metaphysis, surrounded by dense fibrous tissue and sclerotic bone.
- #75 Diagnosis and Management of Osteomyelitis | AAFPhttps://www.aafp.org/pubs/afp/issues/2001/0615/p2413.html/1000
Acute osteomyelitis is the clinical term for a new infection in bone. This infection occurs predominantly in children and is often seeded hematogenously. In adults, osteomyelitis is usually a subacute or chronic infection that develops secondary to an open injury to bone and surrounding soft tissue. The specific organism isolated in bacterial osteomyelitis is often associated with the age of the patient or a common clinical scenario (i.e., trauma or recent surgery). Staphylococcus aureus is implicated in most patients with acute hematogenous osteomyelitis. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis. […] The specific microorganism(s) isolated from patients with bacterial osteomyelitis is often associated with the age of the patient or the clinical scenario. Staphylococcus aureus is implicated in most cases of acute hematogenous osteomyelitis and is responsible for up to 90 percent of cases in otherwise healthy children. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis.
- #76 Diagnosis and Management of Osteomyelitis | AAFPhttps://www.aafp.org/pubs/afp/issues/2001/0615/p2413.html
The specific microorganism(s) isolated from patients with bacterial osteomyelitis is often associated with the age of the patient or the clinical scenario. Staphylococcus aureus is implicated in most cases of acute hematogenous osteomyelitis and is responsible for up to 90 percent of cases in otherwise healthy children. Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Serratia marcescens and Escherichia coli are commonly isolated in patients with chronic osteomyelitis.
- #77 Osteomyelitis – Wikipediahttps://en.wikipedia.org/wiki/Osteomyelitis
Osteomyelitis is the infectious inflammation of bone marrow. The cause is usually a bacterial infection, but rarely can be a fungal infection. Risks for developing osteomyelitis include diabetes, intravenous drug use, prior removal of the spleen, and trauma to the area. Osteomyelitis is often caused by Staphylococcus aureus. In infants, S. aureus, Group B streptococci and Escherichia coli are commonly isolated; in children from one to 16 years of age, S. aureus, Streptococcus pyogenes, and Haemophilus influenzae are common. In some subpopulations, including intravenous drug users and splenectomized patients, Gram-negative bacteria, including enteric bacteria, are significant pathogens. The most common form of the disease in adults is caused by injury exposing the bone to local infection. Staphylococcus aureus is the most common organism seen in osteomyelitis, seeded from areas of contiguous infection. But anaerobes and Gram-negative organisms, including Pseudomonas aeruginosa, E. coli, and Serratia marcescens, are also common. Mixed infections are the rule rather than the exception. Systemic mycotic infections may also cause osteomyelitis. The two most common are Blastomyces dermatitidis and Coccidioides immitis. Osteomyelitis is a secondary complication in 13% of patients with pulmonary tuberculosis. In this case, the bacteria, in general, spread to the bone through the circulatory system, first infecting the synovium (due to its higher oxygen concentration) before spreading to the adjacent bone. In tubercular osteomyelitis, the long bones and vertebrae are the ones that tend to be affected.
- #78 Osteomyelitis – Wikipediahttps://en.wikipedia.org/wiki/Osteomyelitis
Osteomyelitis is the infectious inflammation of bone marrow. The cause is usually a bacterial infection, but rarely can be a fungal infection. Risks for developing osteomyelitis include diabetes, intravenous drug use, prior removal of the spleen, and trauma to the area. Osteomyelitis is often caused by Staphylococcus aureus. In infants, S. aureus, Group B streptococci and Escherichia coli are commonly isolated; in children from one to 16 years of age, S. aureus, Streptococcus pyogenes, and Haemophilus influenzae are common. In some subpopulations, including intravenous drug users and splenectomized patients, Gram-negative bacteria, including enteric bacteria, are significant pathogens. The most common form of the disease in adults is caused by injury exposing the bone to local infection. Staphylococcus aureus is the most common organism seen in osteomyelitis, seeded from areas of contiguous infection. But anaerobes and Gram-negative organisms, including Pseudomonas aeruginosa, E. coli, and Serratia marcescens, are also common. Mixed infections are the rule rather than the exception. Systemic mycotic infections may also cause osteomyelitis. The two most common are Blastomyces dermatitidis and Coccidioides immitis. Osteomyelitis is a secondary complication in 13% of patients with pulmonary tuberculosis. In this case, the bacteria, in general, spread to the bone through the circulatory system, first infecting the synovium (due to its higher oxygen concentration) before spreading to the adjacent bone. In tubercular osteomyelitis, the long bones and vertebrae are the ones that tend to be affected.
- #79https://www.orthobullets.com/pediatrics/4031/osteomyelitis–pediatric
Osteomyelitis in the pediatric population is most often the result of hematogenous seeding of bacteria to the metaphyseal region of bone. […] local trauma and bacteremia lead to increased susceptibility to bacterial seeding of the metaphysis. […] history of trauma is reported in 30% of patients. […] Staph aureus is the most common organism in all children. […] strains of community-acquired (CA) MRSA have genes encoding for Panton-Valentine leukocidin (PVL) cytotoxin. […] PVL-positive strains are more associated with complex infections, multifocal infections, prolonged fever, abscess, DVT, and sepsis. […] MRSA is associated with increased risk of DVT and septic emboli. […] Group B Strep is most common organism in neonates. […] Kingella kingae becoming more common in younger age groups.
- #80https://www.orthobullets.com/pediatrics/4031/osteomyelitis–pediatric
Osteomyelitis in the pediatric population is most often the result of hematogenous seeding of bacteria to the metaphyseal region of bone. […] local trauma and bacteremia lead to increased susceptibility to bacterial seeding of the metaphysis. […] history of trauma is reported in 30% of patients. […] Staph aureus is the most common organism in all children. […] strains of community-acquired (CA) MRSA have genes encoding for Panton-Valentine leukocidin (PVL) cytotoxin. […] PVL-positive strains are more associated with complex infections, multifocal infections, prolonged fever, abscess, DVT, and sepsis. […] MRSA is associated with increased risk of DVT and septic emboli. […] Group B Strep is most common organism in neonates. […] Kingella kingae becoming more common in younger age groups.
- #81 Osteomyelitis Causeshttps://mobile.fpnotebook.com/Ortho/ID/OstmyltsCs.htm
Staphylococcus Aureus is the most common cause of hematogenous Osteomyelitis in Adults and children […] Staphylococcus Aureus accounts for one third of staphylococcal infections […] Staphylococcus Aureus is a common cause of Acute Contiguous Osteomyelitis […] Staphylococcus Aureus is a common cause of Chronic Osteomyelitis […] Diabetes Mellitus is associated with polymicrobial infections in Osteomyelitis […] Sickle Cell Anemia can lead to Osteomyelitis caused by Streptococcus Pneumoniae and Salmonella […] Human Immunodeficiency Virus (HIV) can lead to Osteomyelitis caused by Bartonella Henselae and Mycobacterium tuberculosis […] IV Drug Abuse is associated with a polymicrobial infection in Osteomyelitis.
- #82 Osteomyelitis: A Bone-a-fide Overview of Risk Factors, Prevention, and Treatmenthttps://www.afmc.org/blog/osteomyelitis
Osteomyelitis is an infection of bone tissue that can arise from trauma, surgery, compromised blood flow (particularly in diabetes), or infections that spread through the bloodstream. […] Individuals at higher risk include older adults, men, children, and particularly those with diabetes (both type 1 and type 2), weakened immune systems, peripheral neuropathy, and vascular diseases. Additionally, trauma, such as motorcycle accidents or penetrating injuries, can significantly increase the risk. […] Several species of Staphylococcus infections are some of the most common causes, but most bacteria that can cause a bloodstream infection can also cause a bone infection. […] By far the most common type of patient I see with osteomyelitis are those with diabetes mellitus (both type 1 and type 2), Dr. Novack says. Diabetes can cause nerve and blood vessel damage that weakens the bones, especially in the feet. High blood sugars weaken the immune system and feed the bacteria.
- #83 Osteomyelitis Causeshttps://mobile.fpnotebook.com/Ortho/ID/OstmyltsCs.htm
Staphylococcus Aureus is the most common cause of hematogenous Osteomyelitis in Adults and children […] Staphylococcus Aureus accounts for one third of staphylococcal infections […] Staphylococcus Aureus is a common cause of Acute Contiguous Osteomyelitis […] Staphylococcus Aureus is a common cause of Chronic Osteomyelitis […] Diabetes Mellitus is associated with polymicrobial infections in Osteomyelitis […] Sickle Cell Anemia can lead to Osteomyelitis caused by Streptococcus Pneumoniae and Salmonella […] Human Immunodeficiency Virus (HIV) can lead to Osteomyelitis caused by Bartonella Henselae and Mycobacterium tuberculosis […] IV Drug Abuse is associated with a polymicrobial infection in Osteomyelitis.
- #84 Osteomyelitis | UM Health-Sparrowhttps://www.uofmhealthsparrow.org/departments-conditions/conditions/osteomyelitis
Peripheral artery disease. This is a condition in which narrowed arteries cut blood flow to the arms or legs. […] Sickle cell disease. This condition is passed through families, called inherited. Sickle cell disease affects the shape of red blood cells and slows blood flow. […] Dialysis and other procedures that use medical tubing. Dialysis uses tubes to remove waste from the body when the kidneys don’t work well. The medical tubes can carry germs from outside the body inside. […] Pressure injuries. People who can’t feel pressure or who stay in one position for too long can get sores on their skin where the pressure is. These sores are called pressure injuries. If a sore is there for a time, the bone under it can become infected. […] Illicit drugs by needles. People who take illicit drugs by needle are more likely to get osteomyelitis. This is true if they use needles that aren’t sterile and if they don’t clean the skin before using the needles.
- #85 Osteomyelitis Causeshttps://mobile.fpnotebook.com/Ortho/ID/OstmyltsCs.htm
Staphylococcus Aureus is the most common cause of hematogenous Osteomyelitis in Adults and children […] Staphylococcus Aureus accounts for one third of staphylococcal infections […] Staphylococcus Aureus is a common cause of Acute Contiguous Osteomyelitis […] Staphylococcus Aureus is a common cause of Chronic Osteomyelitis […] Diabetes Mellitus is associated with polymicrobial infections in Osteomyelitis […] Sickle Cell Anemia can lead to Osteomyelitis caused by Streptococcus Pneumoniae and Salmonella […] Human Immunodeficiency Virus (HIV) can lead to Osteomyelitis caused by Bartonella Henselae and Mycobacterium tuberculosis […] IV Drug Abuse is associated with a polymicrobial infection in Osteomyelitis.
- #86 Vertebral Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532256/
Vertebral osteomyelitis is typically caused by a single pathogen, with S aureus being the most common etiologic agent, especially in cases of hematogenous dissemination. […] Conversely, coagulase-negative staphylococci and P acnes are the most common pathogens in exogenous osteomyelitis following spinal surgery, particularly in patients with spinal fixation devices. […] Vertebral osteomyelitis caused by alternative pathogens, such as Mycobacterium tuberculosis or Brucella, may be seen in endemic regions and immunocompromised patients. […] Mycobacterium avium complex is a common pathogen in patients with HIV. […] Fungal vertebral osteomyelitis, although rare, can occur in patients from endemic regions (eg, histoplasmosis and blastomycosis), immunocompromised individuals (eg, Aspergillus fumigatus), IV drug users, and those with indwelling intravenous catheters (eg, Candida and Aspergillus).
- #87 Osteomyelitis Causeshttps://mobile.fpnotebook.com/Ortho/ID/OstmyltsCs.htm
Staphylococcus Aureus is the most common cause of hematogenous Osteomyelitis in Adults and children […] Staphylococcus Aureus accounts for one third of staphylococcal infections […] Staphylococcus Aureus is a common cause of Acute Contiguous Osteomyelitis […] Staphylococcus Aureus is a common cause of Chronic Osteomyelitis […] Diabetes Mellitus is associated with polymicrobial infections in Osteomyelitis […] Sickle Cell Anemia can lead to Osteomyelitis caused by Streptococcus Pneumoniae and Salmonella […] Human Immunodeficiency Virus (HIV) can lead to Osteomyelitis caused by Bartonella Henselae and Mycobacterium tuberculosis […] IV Drug Abuse is associated with a polymicrobial infection in Osteomyelitis.
- #88https://step2.medbullets.com/orthopedics/120523/osteomyelitis
Etiology: Note that infection can be due to bacteria, fungi, and mycobacteria. […] Microbiology: Staphylococcus aureus is the most common cause overall (including pediatric patients). […] Salmonella is a specific cause in sickle cell disease. […] Neisseria gonorrhoeae is rare. […] Staphylococcus epidermidis can also be seen in prosthetic joint involvement. […] Mycobacterium tuberculosis can also be seen in cases of vertebral involvement (Pott disease). […] Pasteurella multocida is seen in cases caused by cat and dog bites. […] Pseudomonas and Candida can also be seen in cases caused by intravenous drug abuse. […] Pathogenesis: hematogenous seeding of bone; contiguous spread of infection from adjacent structures (e.g., soft tissues and joints); direct inoculation (e.g., penetrating trauma and contaminated surgical tools).
- #89 Vertebral Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532256/
Vertebral osteomyelitis is typically caused by a single pathogen, with S aureus being the most common etiologic agent, especially in cases of hematogenous dissemination. […] Conversely, coagulase-negative staphylococci and P acnes are the most common pathogens in exogenous osteomyelitis following spinal surgery, particularly in patients with spinal fixation devices. […] Vertebral osteomyelitis caused by alternative pathogens, such as Mycobacterium tuberculosis or Brucella, may be seen in endemic regions and immunocompromised patients. […] Mycobacterium avium complex is a common pathogen in patients with HIV. […] Fungal vertebral osteomyelitis, although rare, can occur in patients from endemic regions (eg, histoplasmosis and blastomycosis), immunocompromised individuals (eg, Aspergillus fumigatus), IV drug users, and those with indwelling intravenous catheters (eg, Candida and Aspergillus).
- #90 Osteomyelitis – Bone, Joint, and Muscle Disorders – Merck Manual Consumer Versionhttps://www.merckmanuals.com/home/bone-joint-and-muscle-disorders/bone-and-joint-infections/osteomyelitis
Osteomyelitis is a bone infection usually caused by bacteria, mycobacteria, or fungi. […] Bacteria, mycobacteria, or fungi can infect bones by spreading through the bloodstream or, more often, by spreading from nearby infected tissue or a contaminated open wound. […] Injury, a foreign body (such as an infected artificial joint), and a decrease in the blood supply to organs or tissues (ischemia) may cause osteomyelitis. […] Most osteomyelitis results from direct invasion or infections in nearby soft tissues (such as a foot ulcer caused by poor circulation or diabetes). […] When organisms that cause osteomyelitis spread through the bloodstream, infection usually occurs in the ends of leg and arm bones in children and the spine (vertebrae) in adults, particularly older adults. […] Staphylococcus aureus is the bacteria that most commonly causes osteomyelitis that spreads via the bloodstream.
- #91 Vertebral Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532256/
Vertebral osteomyelitis is typically caused by a single pathogen, with S aureus being the most common etiologic agent, especially in cases of hematogenous dissemination. […] Conversely, coagulase-negative staphylococci and P acnes are the most common pathogens in exogenous osteomyelitis following spinal surgery, particularly in patients with spinal fixation devices. […] Vertebral osteomyelitis caused by alternative pathogens, such as Mycobacterium tuberculosis or Brucella, may be seen in endemic regions and immunocompromised patients. […] Mycobacterium avium complex is a common pathogen in patients with HIV. […] Fungal vertebral osteomyelitis, although rare, can occur in patients from endemic regions (eg, histoplasmosis and blastomycosis), immunocompromised individuals (eg, Aspergillus fumigatus), IV drug users, and those with indwelling intravenous catheters (eg, Candida and Aspergillus).
- #92 Vertebral Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532256/
Vertebral osteomyelitis is typically caused by a single pathogen, with S aureus being the most common etiologic agent, especially in cases of hematogenous dissemination. […] Conversely, coagulase-negative staphylococci and P acnes are the most common pathogens in exogenous osteomyelitis following spinal surgery, particularly in patients with spinal fixation devices. […] Vertebral osteomyelitis caused by alternative pathogens, such as Mycobacterium tuberculosis or Brucella, may be seen in endemic regions and immunocompromised patients. […] Mycobacterium avium complex is a common pathogen in patients with HIV. […] Fungal vertebral osteomyelitis, although rare, can occur in patients from endemic regions (eg, histoplasmosis and blastomycosis), immunocompromised individuals (eg, Aspergillus fumigatus), IV drug users, and those with indwelling intravenous catheters (eg, Candida and Aspergillus).
- #93 Vertebral Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532256/
Vertebral osteomyelitis is typically caused by a single pathogen, with S aureus being the most common etiologic agent, especially in cases of hematogenous dissemination. […] Conversely, coagulase-negative staphylococci and P acnes are the most common pathogens in exogenous osteomyelitis following spinal surgery, particularly in patients with spinal fixation devices. […] Vertebral osteomyelitis caused by alternative pathogens, such as Mycobacterium tuberculosis or Brucella, may be seen in endemic regions and immunocompromised patients. […] Mycobacterium avium complex is a common pathogen in patients with HIV. […] Fungal vertebral osteomyelitis, although rare, can occur in patients from endemic regions (eg, histoplasmosis and blastomycosis), immunocompromised individuals (eg, Aspergillus fumigatus), IV drug users, and those with indwelling intravenous catheters (eg, Candida and Aspergillus).
- #94 Osteomyelitis – TeachMeSurgeryhttps://teachmesurgery.com/orthopaedic/principles/osteomyelitis/
Osteomyelitis is defined as an infection of bone, either acute or chronic. […] Most cases are acute and bacterial in origin, however it can also be chronic and rarely can even be fungal in origin. […] Osteomyelitis can be caused by 3 main routes: Haematogenous spread, Direct inoculation of micro-organisms into the bone (e.g. following an open fracture), Direct spread from nearby infection (e.g. adjacent septic arthritis). […] The most common causative organisms for osteomyelitis include S. aureus (most common), Streptococci, Enterobacteur spp., H. Influnzae, P. aeruginosa (especially in intravenous drug users), and Salmonella spp. (especially in patients with sickle cell disease). […] Risk factors for developing osteomyelitis include diabetes mellitus, immunosuppression (such as long term steroid treatment or AIDS), alcohol excess, or intravenous drug use.
- #95 Osteomyelitishttps://www.nhs.uk/conditions/osteomyelitis/
Osteomyelitis is a painful bone infection. It usually goes away if treated early with antibiotics. It can cause serious long-term problems if it’s not treated. […] Anyone can develop osteomyelitis, but you’re more at risk of getting it if you have: had osteomyelitis before, diabetes, especially if you also have a foot ulcer, broken (fractured) a bone, been injured and have a wound, had an infection, had surgery, a weakened immune system (for example, because of chemotherapy, or you have a condition such as HIV). […] If it’s not treated quickly, osteomyelitis can cause serious long-term problems, such as infections and permanent damage to your bones. […] Osteomyelitis is treated with antibiotics. You may need treatment in hospital, or you might be able to take antibiotics at home. […] If the infection is treated quickly (within 3 to 5 days of it starting), it often clears up completely. […] If the infection has damaged the bone, you’ll need surgery (known as debridement) to remove the damaged part.
- #96 Osteomyelitis – StatPearls – NCBI Bookshelfhttps://www.ncbi.nlm.nih.gov/books/NBK532250/
Osteomyelitis is a serious infection of the bone that can be either acute or chronic. It is an inflammatory process involving the bone and its structures caused by pyogenic organisms that spread through the bloodstream, fractures, or surgery. […] Healthy intact bone is resistant to infection. The bone becomes susceptible to disease with the introduction of a large inoculum of bacteria, from trauma, ischemia, or the presence of foreign bodies because bone sites to which microorganisms can bind are exposed. […] Certain bacteria such as Staphylococcus aureus adhere to the bone by expressing receptors, called adhesins, for some components of the bone matrix, including laminin, collagen, fibronectin, and bone sialoglycoprotein. […] The characteristic of some bacteria to adhere to the bone and surgically implanted devices following which they express phenotypic resistance to antibiotic therapy and their ability to survive intracellularly may explain the persistence of bone infections and high failure rates of shorter courses of antimicrobial treatment.
- #97 Osteomyelitishttps://www.nhs.uk/conditions/osteomyelitis/
Osteomyelitis is a painful bone infection. It usually goes away if treated early with antibiotics. It can cause serious long-term problems if it’s not treated. […] Anyone can develop osteomyelitis, but you’re more at risk of getting it if you have: had osteomyelitis before, diabetes, especially if you also have a foot ulcer, broken (fractured) a bone, been injured and have a wound, had an infection, had surgery, a weakened immune system (for example, because of chemotherapy, or you have a condition such as HIV). […] If it’s not treated quickly, osteomyelitis can cause serious long-term problems, such as infections and permanent damage to your bones. […] Osteomyelitis is treated with antibiotics. You may need treatment in hospital, or you might be able to take antibiotics at home. […] If the infection is treated quickly (within 3 to 5 days of it starting), it often clears up completely. […] If the infection has damaged the bone, you’ll need surgery (known as debridement) to remove the damaged part.