Złamanie ramienia
Patofizjologia i mechanizm

Złamanie ramienia (fractura humeri) obejmuje przerwanie ciągłości kości ramiennej, promieniowej lub łokciowej, najczęściej spowodowane siłami mechanicznymi takimi jak upadek na wyciągniętą rękę, urazy bezpośrednie, siły skrętne lub zgięciowe. Patomechanizm złamań uwzględnia zarówno złamania stabilne, przemieszczone, wieloodłamowe, otwarte, jak i specyficzne typy jak greenstick czy buckle, a także złamania patologiczne związane z osteoporozą, nowotworami czy zapaleniami. Kluczową rolę w funkcji przedramienia odgrywają mięśnie supinujące (m. dwugłowy ramienia, m. nawrotny) i pronujące (m. nawrotny obły, m. nawrotny czworoboczny), a stabilność anatomiczną zapewniają stawy promieniowo-łokciowe, błona międzykostna oraz kompleks włóknisto-chrzęstny trójkątny (TFCC). Proces gojenia złamania przebiega przez fazę zapalną, tworzenie miękkiej i twardej kostniny oraz fazę przebudowy, trwającą nawet kilka lat, podczas której nowa kość osiąga pełną wytrzymałość mechaniczną.

Patofizjologia złamania ramienia

Złamanie ramienia (łac. fractura humeri) to naruszenie ciągłości jednej lub więcej z trzech kości tworzących ramię: kości ramiennej (humerus), kości promieniowej (radius) lub kości łokciowej (ulna). Złamania te wymagają przyłożenia siły mechanicznej przekraczającej wytrzymałość kości i mogą występować w różnych miejscach ramienia.12

Mechanizm powstania złamania

Złamania ramienia najczęściej występują w wyniku działania sił o różnych wektorach. Główne mechanizmy obejmują:12

  • Upadek na wyciągniętą rękę – najczęstsza przyczyna złamań ramienia, powodująca przeniesienie siły wzdłuż osi kończyny
  • Bezpośredni uraz – uderzenie przedmiotem (np. kijem), wypadek samochodowy lub jakiekolwiek zdarzenie powodujące bezpośrednie przyłożenie siły do części ramienia
  • Siły skrętne – wywołujące złamania spiralne, szczególnie w sporcie lub podczas upadków z rotacją
  • Siły zgięciowe – powodujące złamania poprzeczne kości

12

W szczególnych przypadkach dochodzi do złamań patologicznych, które występują przy działaniu niewielkiej siły na kość osłabioną przez choroby takie jak osteoporoza, nowotwory kości czy zapalenia.12

Biomechanika złamania ramienia

Układ kości przedramienia (kość promieniowa i łokciowa) wraz z tkankami miękkimi funkcjonuje jako złożony mechanizm umożliwiający pronację i supinację. Główne mięśnie odpowiedzialne za supinację to mięsień dwugłowy ramienia i mięsień nawrotny, podczas gdy mięsień nawrotny obły i mięsień nawrotny czworoboczny odpowiadają za pronację. Stanowią one główne siły deformujące w złamaniach przedramienia.1

W przypadku złamania kości przedramienia dochodzi do zaburzenia funkcji pronacji i supinacji, co znacząco wpływa na zdolność do obracania ręki, a także zginania i prostowania nadgarstka i łokcia.12

Stabilność anatomiczną przedramienia zapewniają:1

  • Proksymalny i dystalny staw promieniowo-łokciowy
  • Wtórne stabilizatory tkanek miękkich, w tym kompleks włóknisto-chrzęstny trójkątny (TFCC)
  • Błona międzykostna (IOM)
  • Proksymalnie torebka stawowa łokcia i więzadło pierścieniowe stabilizujące proksymalną część kości łokciowej i głowę kości promieniowej
  • Dystalnie kość łokciowa łączy się z wcięciem sigmoidalnym kości promieniowej i jest stabilizowana przez kompleks włóknisto-chrzęstny trójkątny i torebkę stawową nadgarstka

1

Rodzaje złamań ramienia

Złamania ramienia klasyfikuje się według kilku kryteriów, które mają wpływ na sposób leczenia i rokowanie:12

  • Według lokalizacji:
    • Złamania bliższego końca kości ramiennej (okolica barku)
    • Złamania trzonu kości ramiennej
    • Złamania dalszego końca kości ramiennej (okolica łokcia)
    • Złamania kości przedramienia – kości promieniowej i/lub łokciowej
  • Według charakteru złamania:
    • Złamania stabilne – końce złamanej kości pozostają blisko siebie
    • Złamania przemieszczone – końce kości są przemieszczone względem siebie
    • Złamania wieloodłamowe (rozdrobnione) – kość pęka na trzy lub więcej fragmentów
    • Złamania otwarte (złożone) – fragmenty kości przebijają skórę
  • Złamania specyficzne:
    • Złamania typu „greenstick” (złamania zielonej gałązki) – typowe dla dzieci, gdzie kość pęka, ale nie łamie się całkowicie
    • Złamania typu „buckle” (złamania wgięciowe) – jedna strona kości jest ściśnięta, co powoduje wybrzuszenie drugiej strony
    • Złamania patologiczne – występujące w kościach osłabionych przez choroby

12

Proces patologiczny złamania

Złamanie kości ramienia uruchamia złożony proces patofizjologiczny, który można podzielić na kilka etapów.1

Faza zapalna

Początkowa reakcja na złamanie to faza zapalna, która rozpoczyna proces gojenia. Obejmuje ona:12

12

W tej fazie dochodzi również do aktywacji układu odpornościowego, który koordynuje stan zapalny niezbędny do prawidłowego gojenia. Krwiak złamaniowy zawiera cząsteczki zatrzymujące krwawienie oraz czynniki sygnałowe i wzrostowe kierujące procesem gojenia.12

Tworzenie kostniny miękkiej

Podczas tworzenia kostniny miękkiej zachodzą następujące procesy:1

  • Mezenchymalne komórki macierzyste różnicują się w chondroblasty (komórki tworzące chrząstkę) i osteoblasty (komórki tworzące kość)
  • Formowanie miękkiej kostniny złożonej z włóknisto-chrząstki i kolagenu
  • Tworzenie tkanki ziarninowej bogatej w naczynia krwionośne i fibroblasty
  • Dostarczanie tlenu i składników odżywczych niezbędnych do gojenia kości przez nowo powstałe naczynia krwionośne

12

Tworzenie kostniny miękkiej osiąga szczyt około 8 dni po urazie. Jest to jednak rozwiązanie tymczasowe, ponieważ chrząstka nie jest wystarczająco mocna, aby wytrzymać naciski, jakim kości są poddawane w codziennym życiu.1

Tworzenie kostniny twardej

W kolejnym etapie:12

  • Osteoblasty wnikają do miękkiej kostniny i odkładają nową tkankę kostną
  • Miękka kostnina stopniowo ulega mineralizacji i przekształca się w twardą kostninę, złożoną z niedojrzałej kości splotowatej
  • Proces ten, znany jako kostnienie śródchrzęstne, polega na przekształceniu chrząstki w kość
  • Około 3-4 tygodnie po urazie rozpoczyna się tworzenie nowej dojrzałej kości

12

Przebudowa kości

Faza przebudowy to ostatni etap gojenia kości, w którym:1

  • Nowo utworzona kość splotowata jest przekształcana w dojrzałą strukturę o odpowiedniej wytrzymałości mechanicznej
  • Osteoklasty (wyspecjalizowane komórki kostne) resorbują nadmiar tkanki kostnej
  • Jednocześnie osteoblasty odkładają nową tkankę kostną w procesie modelowania kości
  • Proces przebudowy może trwać kilka lat, podczas których kość stopniowo dostosowuje się do obciążeń mechanicznych

12

W większości przypadków kość wykorzystuje swoją niezwykłą zdolność do regeneracji. Oznacza to, że nowa kość wypełniająca złamanie ściśle przypomina kość sprzed urazu, bez śladu blizny.1

Powikłania złamań ramienia

Złamania ramienia mogą prowadzić do różnych powikłań, które mają istotny wpływ na proces leczenia i końcowy efekt funkcjonalny.12

Powikłania wczesne

Do wczesnych powikłań złamania ramienia należą:12

  • Zespół ciasnoty przedziałów powięziowych (compartment syndrome) – stan, w którym nadmierne krwawienie lub obrzęk powodują wzrost ciśnienia w tkankach i prowadzą do uszkodzenia mięśni i nerwów. Jest to stan zagrożenia życia, wymagający natychmiastowej interwencji chirurgicznej. Typowo występuje 24-48 godzin po urazie i objawia się nasilającym się bólem, drętwieniem i zaburzeniami czucia.
  • Infekcja – szczególnie w przypadku złamań otwartych, gdzie bakterie z brudu i innych zanieczyszczeń mogą przedostać się do rany. Wymaga agresywnego leczenia antybiotykami i często interwencji chirurgicznej.
  • Uszkodzenie naczyń krwionośnych i nerwów – jeśli kość ramienna złamie się na dwa lub więcej kawałków, ostre końce mogą uszkodzić pobliskie nerwy i naczynia krwionośne, prowadząc do drętwienia i problemów z krążeniem.

12

Powikłania późne

Późne powikłania obejmują:12

  • Nierówny wzrost kości – szczególnie u dzieci, gdzie złamanie w obszarze płytki wzrostu może zakłócić normalny wzrost kości.
  • Zaburzenia zrostu kostnego:
    • Brak zrostu (non-union) – gdy złamanie nie goi się w normalnym czasie
    • Zrost opóźniony – gdy gojenie trwa dłużej niż zwykle
    • Zrost nieprawidłowy (malunion) – gdy kość zrasta się w nieprawidłowej pozycji
  • Pourazowa choroba zwyrodnieniowa stawów (osteoartroza) – szczególnie w przypadku złamań obejmujących powierzchnię stawową. Złamania, które rozciągają się na staw, mogą powodować zapalenie stawów wiele lat później.
  • Ograniczenie ruchomości – unieruchomienie wymagane do wygojenia złamania w obrębie kości ramiennej może czasami skutkować ograniczonym i bolesnym zakresem ruchu łokcia lub barku.

12

Czynniki ryzyka powikłań

Czynniki zwiększające ryzyko powikłań złamania ramienia to:12

  • Podeszły wiek
  • Cukrzyca
  • Palenie tytoniu
  • Niski poziom witaminy D
  • Przewlekłe choroby takie jak osteoporoza
  • Ciężkość złamania (złamania otwarte, wieloodłamowe)
  • Opóźnione rozpoczęcie leczenia
  • Niedokrwienie głowy kości ramiennej (w złamaniach bliższego końca)

12

Złożone mechanizmy patologiczne specyficznych typów złamań

Złamania patologiczne

Złamania patologiczne występują, gdy kość zostaje osłabiona przez proces chorobowy, co powoduje, że normalne obciążenia mogą prowadzić do złamania.12

Główne mechanizmy patologiczne obejmują:12

  • Osteoporoza – najczęstsza przyczyna złamań patologicznych, gdzie występuje utrata masy kostnej, szczególnie u kobiet po menopauzie. Proces chorobowy może prowadzić do utraty do 20% masy kostnej w ciągu roku w skrajnych przypadkach.
  • Nowotwory kości – zarówno łagodne jak i złośliwe mogą osłabiać strukturę kości.
  • Przerzuty nowotworowe – często prowadzą do złamań patologicznych w zaawansowanych stadiach chorób nowotworowych.
  • Infekcje kościzapalenie kości i szpiku może osłabiać strukturę kości.
  • Osteomalacja – zaburzenie mineralizacji kości prowadzące do ich osłabienia.
  • Choroba Pageta – nieprawidłowa przebudowa kości.

12

Złamania zmęczeniowe

Złamania zmęczeniowe (stresowe) powstają w wyniku powtarzających się obciążeń, które pojedynczo nie przekraczają wytrzymałości kości, ale kumulują się w czasie.1

Mechanizm patologiczny obejmuje:12

  • Chroniczne, powtarzające się mikrourazy przewyższające zdolność kości do naprawy
  • Zaburzenie równowagi między resorpcją a formowaniem kości
  • Kumulację mikrouszkodzeń w strukturze kości
  • Rozwój linii złamania w miejscach największego obciążenia mechanicznego

1

Złamania typu „greenstick”

Złamania typu „greenstick” (zielonej gałązki) występują głównie u dzieci z powodu elastyczności ich kości. Mechanizm patologiczny obejmuje:1

  • Przyłożenie siły zginającej do kości, powodującej przekroczenie integralności strukturalnej powierzchni wypukłej
  • Pęknięcie warstwy korowej po stronie wypukłej zgięcia kości
  • Zachowanie ciągłości warstwy korowej po stronie wklęsłej zgięcia
  • Może wystąpić w wyniku siły działającej wzdłuż długiej osi kości (np. upadek na wyciągniętą rękę) lub siły przyłożonej prostopadle do kości (np. bezpośrednie uderzenie)

1

Złamania związane z nadużyciem fizycznym

W przypadku dzieci, niektóre wzorce złamań mogą wskazywać na nadużycie fizyczne. Mechanizmy patologiczne specyficzne dla takich złamań obejmują:1

  • Złamania spiralne kości udowej lub ramiennej u dzieci nieporuszających się samodzielnie – powstają w wyniku gwałtownego skręcania lub szarpania kończyny podczas trzymania dziecka w okolicy łokcia lub kolana
  • Złamania „odpryskowe” lub „narożne” przynasad kości długich – również wytwarzane przez gwałtowne szarpanie lub wykręcanie kończyny
  • Złamania żeber – często spotykane u niemowląt potrząsanych, szczególnie złamania żeber tylnych są wysoce specyficzne dla nadużycia
  • Złożone lub wgłobione złamania czaszki – typowo wynikające z uderzeń o wyższej energii i bardziej skupionych (tj. bezpośrednich uderzeń) niż w przypadku typowych upadków domowych

1

Mechanizm patologiczny złamania ramienia jest złożonym procesem obejmującym szereg czynników biomechanicznych, biologicznych i patofizjologicznych. Zrozumienie tych mechanizmów jest kluczowe dla właściwego leczenia i zapobiegania powikłaniom, co pozwala na optymalizację procesu gojenia i powrót do pełnej funkcjonalności kończyny.12

Kolejne rozdziały

Zapraszamy do dalszego czytania naszego leksykonu.

Wybierz kolejny rozdział z menu poniżej, aby otworzyć nową podstronę kompedium wiedzy i uzyskać szczegółowe informację o leku, substancji lub chorobie.

  1. 13.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

  • #1 Broken arm – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/broken-arm/symptoms-causes/syc-20353260
    A broken arm involves one or more of the three bones in your arm the ulna, radius and humerus. […] One of the most common causes of a broken arm is falling onto an outstretched hand. […] Treatment depends on the site and severity of the injury. A simple break might be treated with a sling, ice and rest. However, the bone may require realignment (reduction) in the emergency room. […] A more complicated break might require surgery to realign the broken bone and to implant wires, plates, nails or screws to keep the bone in place during healing. […] Common causes for a broken arm include: Falls. Falling onto an outstretched hand or elbow is the most common cause of a broken arm. […] Conditions that weaken bones, such as osteoporosis and bone tumors, increase your risk of a broken arm. This type of break is known as a pathological fracture.
  • #1 Broken Arm: Symptoms, Causes, Diagnosis, Treatment
    https://www.webmd.com/a-to-z-guides/broken-arm
    A broken or fractured arm means that one or more of the bones of the arm have been cracked. This is a common injury occurring in both children and adults. In adults, fractures of the arm account for nearly half of all broken bones. In children, fractures of the forearm are second only to broken collarbones. […] Almost all injuries to the arm that result in a broken bone are caused in 2 ways: falls and direct trauma. […] The typical fall that produces a fracture occurs when you fall on your outstretched hand. The location of the fracture can be from the wrist up to the shoulder depending on the direction of the fall, the age of the person, and other factors that modify the stresses applied to the bone. […] Direct trauma can be from a direct blow from an object such as a bat, the trauma during a car accident, or any accident that causes the direct application of force to a part of the arm.
  • #1 Forearm Fractures: Practice Essentials, Anatomy, Pathophysiology
    https://emedicine.medscape.com/article/1239187-overview
    Fractures of both bones of the forearm are usually classified according to the level of fracture, the pattern of the fracture, the degree of displacement, the presence or absence of comminution or segment bone loss, and whether they are open or closed. Each of these factors may have some bearing on the type of treatment to be selected and the ultimate prognosis. The Orthopaedic Trauma Association (OTA)/Arbeitsgemeinschaft fr Osteosynthese (AO) schema is commonly used for classification. […] Disruption of the PRUJ or DRUJ is of great significance to treatment and prognosis. Determining whether the fracture is associated with joint injury is imperative because effective treatment demands that both the fracture and the joint injury be treated in an integrated fashion. […] The mechanism of injury is variable. The most common cause is a direct blow to the forearm, producing a single (nightstick) fracture of the ulna, the radius, or both. The next most likely mechanism is a fall on an outstretched hand with the forearm pronated. Other mechanisms of injury include road traffic accidents and athletic injuries. The force generated is usually much greater than that required to cause a Colles fracture. Most forearm shaft fractures resulting from falls occur in athletes or in persons who fall from heights.
  • #1 Forearm Fractures – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK574580/
    The forearm fractures may result from both low energy and high energy trauma. The most common mechanism of injury for such injuries is axial loading applied to the forearm, which is a fall onto an outstretched hand. […] The forearm unit consists of radius, ulna, proximal and distal radioulnar joints, and secondary soft tissue stabilizers, including a triangular fibrocartilage complex (TFCC) and the interosseous membrane (IOM). Proximally, the elbow joint capsule and annular ligament stabilize the proximal ulna and radial head. Distally, the ulna articulates with the sigmoid notch of the radius and is stabilized by a triangular fibrocartilage complex and the wrist joint capsule. […] The radius and ulna and the secondary soft tissue stabilizers act as a joint that helps in the pronation and supination movements. The key muscles which help in the supination are the biceps brachii and supinator, whereas pronator teres and pronator quadratus help in pronation; these muscles are the primary deforming forces in the forearm fractures.
  • #1 Broken Arm Treatment Wichita, KS | Forearm Fracture Garden City, KS
    https://www.koc-pa.com/broken-arm-kansas-orthopaedic-center.html
    The fracture of the forearm affects the ability to rotate your arm, as well as bend and straighten the wrist and elbow. […] The fracture of the radius or ulna requires a strong force and is most commonly seen in adults. […] The forearm bones can break in several ways. […] Forearm fractures occur due to automobile accidents, a direct blow to the forearm or fall on an outstretched arm during sports, climbing stairs, etc. […] Treatment of forearm fracture aims at putting back the broken bones into position and preventing them from moving out of place until they are completely healed. […] If the fracture shifts in position, you may be advised to undergo surgery to fix the bones back together. […] When both forearm bones are broken, surgery is usually required. […] During surgery, the injury is cleaned and the bone fragments repositioned into their normal alignment.
  • #1
    https://www.amerikanhastanesi.org/mayo-clinic-care-network/mayo-clinic-health-information-library/diseases-conditions/broken-arm
    Treatment of a broken arm depends on the type of break. The time needed for healing depends on a variety of factors, including severity of the injury; other conditions, such as diabetes; your age; nutrition; and tobacco and alcohol use. […] Fractures are classified into one or more of the following categories: Open (compound) fracture. The broken bone pierces the skin, a serious condition that requires immediate, aggressive treatment to decrease the risk of infection. Closed fracture. The skin remains unbroken. Displaced fracture. The bone fragments on each side of the break aren’t aligned. Surgery might be required to realign the fragments. Comminuted fracture. The bone is broken into pieces, so it might require surgery. Greenstick fracture. The bone cracks but doesn’t break all the way like what happens when you bend a green stick of wood. Most broken bones in children are greenstick fractures because children’s bones are softer and more flexible than are those of adults. Buckle (torus) fracture. One side of the bone is compressed, which causes the other side to bend (buckle). This type of fracture is also more common in children.
  • #1 Stages of Bone Healing After a Fracture | Dr. Mark McFarland
    https://www.osc-ortho.com/blog/the-stages-of-bone-healing-after-a-fracture/
    Bone fractures are a common form of skeletal injury that affect individuals of all ages which undergo a complex and coordinated process of healing. This article provides a comprehensive review of the stages of human bone healing and discusses the intricate biological mechanisms involved, from the initial inflammatory response to the final remodeling phase. The stages of bone healing involve a complex interplay of cellular and molecular sequelae, ultimately leading to the restoration of bone structure and function. […] The initial response to a fracture is the inflammatory stage. Inflammation is a vital protective mechanism that initiates the healing process. It involves the release of various chemical inflammatory mediators, such as cytokines and growth factors, which recruit inflammatory cells to the fracture site and attract mesenchymal stem cells (MSCs) to initiate the next stage of healing.
  • #1 How a Broken Bone Heals | UNC Health Talkhealth wellnessstethoscopeStorieshealth wellnessstethoscopeStoriestwitter-iconfacebook-iconpinterest-iconemail-iconhealth wellnessstethoscopeStoriesfacebooktwitteryoutubepinterestinstagramLinkedIn
    https://healthtalk.unchealthcare.org/how-a-broken-bone-heals/
    The healing process is separated into three stages: Hematoma formation, Bone growth, Bone remodeling. […] “Fracture hematoma is an incredible substance,” Dr. Miles says. “It has molecules to stop the bleeding, as well as signaling molecules and growth factors to direct the body to heal the fracture.” […] “This is a continual process. Some bones will continue to remodel for over a year after a break,” Dr. Miles says. […] To stop broken bones from healing in the wrong shape, it is important that they are realigned into their original position. […] Treatment can be surgical or nonsurgical, depending on the severity of the fracture and the patient’s age, medications and health conditions. […] “It’s an external stabilizer,” Dr. Miles says. “If the internal architecture is disrupted, then we put support on the outside for a period of time to provide stability as the bone heals and regains its strength.” […] “In surgery, we help to augment or support the bone’s internal stability with an artificial device, usually made of metal,” Dr. Miles says. […] If a bone is broken around the hip or shoulder and is unlikely to heal, joint replacement is sometimes necessary.
  • #1 Stages of Bone Healing After a Fracture | Dr. Mark McFarland
    https://www.osc-ortho.com/blog/the-stages-of-bone-healing-after-a-fracture/
    During the soft callus formation stage, MSCs differentiate into chondroblasts (cells that form cartilage) and osteoblasts (cells that form bone), forming a soft callus composed of fibrocartilage and collagen. This matrix bridges the fracture gap and simultaneously, the formation of granulation tissue, rich in blood vessels and fibroblasts, occurs. These blood vessels supply oxygen and nutrients necessary for bone healing. […] Osteoblasts, which are responsible for bone formation, invade the soft callus and deposit new bone tissue. The soft callus gradually undergoes mineralization and transforms into a hard callus, composed of woven, immature bone. This process, known as endochondral ossification, involves the transformation of cartilage into bone. […] The remodeling phase is the final stage of bone healing, where the newly formed woven bone is reshaped into its mature and mechanically sound structure. Osteoclasts (another type of specialized bone cell) resorb excess bone. Simultaneously, osteoblasts deposit new bone tissue in a process called bone modeling. The remodeling process can take several years, during which the bone gradually adapts to its mechanical demands.
  • #1 How do broken bones heal?
    https://www.medicalnewstoday.com/articles/318961
    New bone starts to form mostly at the edges of the fracture. This happens in much the same way that bone is made during normal, everyday maintenance. […] To fill the void space between the broken ends, cells produce soft cartilage. […] Cartilage, or soft callus, formation peaks around 8 days after injury. However, it is not a permanent solution because cartilage is not strong enough to withstand the pressures that bones experience in our daily lives. […] The soft callus is replaced first with a hard, bone-like callus. This is pretty strong, but it is still not as strong as bone. […] Around 3 to 4 weeks after the injury, the formation of new mature bone starts. […] However, there are cases wherein bone healing is not successful, and these cause significant health problems. […] Fractures that take an abnormally long time to heal, or those that do not join back together at all, occur at a rate of around 10 percent.
  • #1 How do broken bones heal?
    https://www.medicalnewstoday.com/articles/318961
    However, a study found that the rate of such non-healing fractures was much higher in people who smoke and people who used to smoke. […] Non-healing fractures are particularly problematic in areas that carry a lot of load, such as the shinbone. […] But in the majority of cases, bone makes use of its remarkable ability to regenerate. This means that the new bone that fills the fracture closely resembles the bone before the injury, without a trace of a scar.
  • #1 Broken arm – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/broken-arm/symptoms-causes/syc-20353260
    The prognosis for most arm fractures is very good if treated early. But complications can include: Uneven growth. Because a child’s arm bones are still growing, a fracture in the area where growth occurs near each end of a long bone (growth plate) can interfere with that bone’s growth. […] If a part of your broken bone protrudes through your skin, it can be exposed to germs that can cause infection. Prompt treatment of this type of fracture is critical. […] Excessive swelling of the injured arm can cut off the blood supply to part of the arm, causing pain and numbness. Typically occurring 24 to 48 hours after the injury, compartment syndrome is a medical emergency that requires surgery.
  • #1 Open Fractures – OrthoInfo – AAOS
    https://orthoinfo.aaos.org/en/diseases–conditions/open-fractures/
    An open fracture, also called a compound fracture, is a fracture in which there is an open wound or break in the skin near the site of the broken bone. Most often, this wound is caused by a fragment of bone breaking through the skin at the moment of the injury. […] An open fracture requires different treatment than a closed fracture, in which there is no open wound. Once the skin is broken, bacteria from dirt and other contaminants can enter the wound and cause infection. For this reason, early treatment for an open fracture focuses on preventing infection at the site of the injury. The wound, tissues, and bone must be cleaned out in a surgical procedure as soon as possible. The fractured bone is also usually stabilized with a surgical procedure to allow the wound to heal. […] Open fractures pose an immediate risk of infection. In general, the greater the damage is to bone and soft tissues, the greater the risk of infection.
  • #1 Elbow (Olecranon) Fractures – OrthoInfo – AAOS
    https://orthoinfo.aaos.org/en/diseases–conditions/elbow-olecranon-fractures/
    Potential complications include elbow stiffness, infection, hardware irritation, damage to nerves and blood vessels, and nonunion. […] Posttraumatic arthritis is a type of arthritis that develops in a joint after an injury. Even when your bones heal normally, the cartilage lining the joint surfaces can be damaged, leading to pain and stiffness over time. […] Most patients can return to their normal activities within about 4 months, although full healing can take more than a year. Recovering strength in your arm often takes longer than might be expected.
  • #1 Broken Arm: Types, Symptoms, Causes and Treatment
    https://www.carehospitals.com/diseases-conditions/broken-arm
    In more severe cases, surgery might be necessary to stabilise the fractured arm using fixation devices like wires, plates, nails, or screws. […] A broken arm can lead to various complications. […] Risk factors for complications include old age, diabetes, smoking, low vitamin D levels, and certain medication. […] A broken arm may cause following complications: […] Some bones may not heal properly, even with appropriate treatment. […] Serious complications include: […] Compartment syndrome, caused by excessive swelling, can result in loss of sensation and function, requiring emergency surgical intervention. […] Open fractures expose bare bones to the environment, increasing the risk of infection. […] Risk factors include being a child or teenager, participating in contact sports, and being over 65 years old.
  • #1 Fractures Without Significant Trauma | UW Radiology
    https://rad.washington.edu/about-us/academic-sections/musculoskeletal-radiology/teaching-materials/online-musculoskeletal-radiology-book/fractures-without-significant-trauma/
    The circumstance of fracture without any history of significant trauma is not uncommon. Whenever you get this history, a red flag should pop up in your visual cortex and a bell should go off in your auditory tracts. […] Generally, the differential diagnosis here is fairly logical. The thing to remember is that a bone needs a reason to break. Usually, that reason is that a substantial force has been applied to the bone. If there is no evidence of such a force, we must look for some other reason. […] Fractures through abnormal bone are called “pathological” fractures. Probably the most common cause of this is an underlying tumor, either benign or malignant. However, almost any underlying process of bone that weakens the bone can lead to a pathological fracture. Therefore, one should also consider infection, osteomalacia, and Paget’s disease, among other causes.
  • #1 Fractures Without Significant Trauma | UW Radiology
    https://rad.washington.edu/about-us/academic-sections/musculoskeletal-radiology/teaching-materials/online-musculoskeletal-radiology-book/fractures-without-significant-trauma/
    With chronic repetitive stress, one can break any bone in the body. However, this is more likely in certain bones, such as the tibial shaft, the metatarsal shafts, the femur, and the bones of the pelvis. […] The main reason prompting the early diagnosis of stress fracture is so that the patient can be advised to rest the affected part. If the affected part continues to be loaded sufficiently, then a stress fracture may develop into a completed fracture through the bone.
  • #1 Greenstick fracture | Radiology Reference Article | Radiopaedia.org
    https://radiopaedia.org/articles/greenstick-fracture?lang=us
    Greenstick fractures occur when the force applied to a bone results in bending of the bone such that the structural integrity of the convex surface is overcome. […] The fact that the integrity of the cortex has been overcome results in fracture of the convex surface. […] However, the bending force applied does not break the bone completely and the concave surface of the bent bone remains intact. […] This can occur following an angulated longitudinal force applied down the bone (e.g. an indirect trauma following a fall on an outstretched arm), or after a force applied perpendicular to the bone (e.g. a direct blow). […] This fracture is very different, and much less common, than the torus fracture that results in buckling of the cortex on the concave side of the bend and an intact convex surface.
  • #1 Child Abuse and Neglect
    https://www.utmb.edu/pedi_ed/CoreV2/Abuse/page_08.htm
    Like burns and bruises, certain fracture presentations are likely to be accidental, whereas others are highly likely to be inflicted. […] Spiral fractures in very young children are highly suspicious for abuse since they are the result of forceful twisting or jerking of an extremity. […] It is important to remember that certain fracture presentations are highly likely to be inflicted. […] Any fracture in an infant under age 6 months. Very young infants have limited mobility and rarely would fall a sufficient distance to cause a fracture. […] Spiral fractures of the femur or humerus in non-ambulatory children. The most common mechanism is forceful jerking or twisting of the extremity while being held near the knee or elbow. […] „Chip” or „corner” fractures of the metaphyses of long bones. These are also produced by forceful jerking or twisting of an extremity. […] Rib fractures (commonly encountered in shaken infants). […] Posterior rib fractures are highly specific for abuse. […] Complex or depressed skull fractures. These are typically the result of much higher-energy and focused impacts (i.e., direct blows) than would occur in typical household falls.
  • #1 Broken arm – Treatment, Types, Tests for arm fractures @Well Health Pro
    https://physiopretoria.co.za/pain/shoulder/broken-arm
    When you complete the correct treatment protocol, your pain should gradually decrease. However, if you neglect to work through your rehabilitation process and don’t get the right treatment from the start, you’ll continue to feel pain. With time, it bothers you more and more, it will prevent you from using your arm properly and your wrist, elbow and shoulder pain gets worse. You become stuck in a cycle of pain, not knowing if it is better to respect pain or push through pain. […] Our rehabilitation program ensures that you can return to lifting, throwing and even competitive sport.
  • #2 Broken Arm (Fractured Arm): Symptoms, Treatment & Recovery
    https://my.clevelandclinic.org/health/diseases/broken-arm-fractured-arm
    A broken arm happens when any of the three bones in your arm are fractured. Its more common to break one of the two bones in your forearm (your ulna and radius), but severe traumas like falls and car accidents can break your upper arm bone (humerus). Most people need to wear a cast for several weeks while their arm heals. […] A broken arm is a bone fracture in any of your three arm bones. It usually takes at least a few months to recover from a broken arm, depending on which type of fracture you have. […] You might need surgery to repair a broken arm. Some people can recover without surgery and only need a cast, splint or brace. You’ll need physical therapy to regain your arm’s strength and ability to move. […] In addition to saying which of your arm bones is broken, a healthcare provider will assign the fracture a type or classification.
  • #2 Broken arm – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/broken-arm/symptoms-causes/syc-20353260
    A broken arm involves one or more of the three bones in your arm the ulna, radius and humerus. […] One of the most common causes of a broken arm is falling onto an outstretched hand. […] Treatment depends on the site and severity of the injury. A simple break might be treated with a sling, ice and rest. However, the bone may require realignment (reduction) in the emergency room. […] A more complicated break might require surgery to realign the broken bone and to implant wires, plates, nails or screws to keep the bone in place during healing. […] Common causes for a broken arm include: Falls. Falling onto an outstretched hand or elbow is the most common cause of a broken arm. […] Conditions that weaken bones, such as osteoporosis and bone tumors, increase your risk of a broken arm. This type of break is known as a pathological fracture.
  • #2 Humerus shaft fracture caused by arm wrestling injury: examination of mechanism through radiological analysis
    https://www.e-aosm.org/journal/view.html?doi=10.14517/aosm23024
    Humerus shaft fracture caused by arm wrestling injury: examination of mechanism through radiological analysis […] This study analyzed the occurrence patterns of humerus fractures and patients characteristics during arm wrestling exercises, considering radiological results and injury mechanisms. […] Surgical treatment using dual plates was performed in all cases, and radiographic imaging data were analyzed to determine fracture location, AO classification, and injury mechanisms. […] All fractures successfully united with an average healing time of 14 weeks, and two cases with radial nerve palsy recovered completely. […] All fracture patterns exhibited an oblique fracture slope angle, which suggested that the injuries were primarily caused by rotational forces, even in AO type B2 fractures.
  • #2 Fractures Without Significant Trauma | UW Radiology
    https://rad.washington.edu/about-us/academic-sections/musculoskeletal-radiology/teaching-materials/online-musculoskeletal-radiology-book/fractures-without-significant-trauma/
    The circumstance of fracture without any history of significant trauma is not uncommon. Whenever you get this history, a red flag should pop up in your visual cortex and a bell should go off in your auditory tracts. […] Generally, the differential diagnosis here is fairly logical. The thing to remember is that a bone needs a reason to break. Usually, that reason is that a substantial force has been applied to the bone. If there is no evidence of such a force, we must look for some other reason. […] Fractures through abnormal bone are called “pathological” fractures. Probably the most common cause of this is an underlying tumor, either benign or malignant. However, almost any underlying process of bone that weakens the bone can lead to a pathological fracture. Therefore, one should also consider infection, osteomalacia, and Paget’s disease, among other causes.
  • #2 Broken Arm Treatment Abu Dhabi, UAE | Forearm Fractures Abu Dhabi, UAE
    https://www.knee.ae/broken-arm-knee-surgery-abu-dhabi-uae.html
    The fracture of the forearm affects the ability to rotate your arm, as well as bend and straighten the wrist and elbow. […] The breaking of the radius or ulna in the middle of the bone requires a strong force and it is most commonly seen in adults. […] In most of the cases, both bones are broken during a forearm fracture. […] The forearm bones can break in several ways. […] Forearm fractures are generally due to automobile accidents; direct blow on the forearm or fall on an outstretched arm during sports, climbing stairs, etc. […] Treatment of forearm fracture aims at putting back the broken bones into position and preventing them from moving out of place until they are completely healed. […] If the fracture shifts in position, you may be advised to undergo surgery to fix the bones back together. […] When both forearm bones are broken, surgery is usually required. […] During surgery, the cuts from the injury will be cleaned and the bone fragments are repositioned into their normal alignment. […] They are held together with screws and metal plates attached to the outer surface of the bone.
  • #2 Broken Arm: Symptoms, Causes, Risk Factors & Treatment
    https://resources.healthgrades.com/right-care/bones-joints-and-muscles/broken-arm
    Symptoms of a broken arm include severe pain and occasionally a visible deformity of the limb. […] Doctors classify arm fractures as stable, displaced, comminuted or compound: If the ends of the broken bones are still very close to each other, the fracture is stable. If the bones are out of place or misaligned, the fracture is displaced. If there are three or more pieces of shattered bones, the fracture is comminuted. If there is a wound and bone is breaking through skin, the fracture is compound. […] A broken arm that results from a motor vehicle accident likely will be accompanied by other injuries, possibly life-threatening ones. […] Not all people with risk factors will break their arm. Risk factors for a broken arm include: Age between 5 and 14 or older than 65 years, inadequate home fall prevention, such as cluttered living environments with many trip hazards, occupations with increased exposure to falls from a great height, osteoporosis or another medical condition or medication that negatively affects bone density, participating in sports that involve falling, such as ice skating, or direct blows to the body.
  • #2 Broken Arm (Arm Fracture): Causes, Diagnosis, and More
    https://www.health.com/broken-arm-8646547
    A broken arm, also known as an arm fracture, occurs when one or more of the bones in your arm crack or break. […] The treatment for a broken arm depends on the location and severity of the break. […] If you break your arm, your healthcare provider might describe the fracture. Knowing the type of fracture helps them decide how to treat your injury. […] Fractures can also be categorized as non-displaced and displaced. With a non-displaced fracture, the broken ends of the bone have not moved out of place. In a displaced fracture, the broken ends have shifted out of their normal position. […] A broken arm can happen in various ways, but some causes are more common than others. […] You don’t always need a major accident to break a bone. Some things can increase your risk of breaking your arm, though having a risk factor doesn’t mean you’ll break your arm.
  • #2 How do broken bones heal?
    https://www.medicalnewstoday.com/articles/318961
    Bone heals by making cartilage to temporarily plug the hole created by the break. This is then replaced by new bone. […] Old bone is constantly being replaced by new bone in a finely tuned interplay of the cells present. This mechanism of daily maintenance comes in handy when we are faced with a broken bone. […] It allows stem cells to first produce cartilage and then create new bone to heal the break, all of which is facilitated by a finely tuned sequence of events. […] The immune system now springs into action to orchestrate inflammation, which is an essential part of healing. […] Stem cells from the surrounding tissues, bone marrow, and blood respond to the immune systems call, and they migrate to the fracture. These cells start off two different pathways that allow bone to heal: bone formation and cartilage formation.
  • #2 How a Broken Bone Heals | UNC Health Talkhealth wellnessstethoscopeStorieshealth wellnessstethoscopeStoriestwitter-iconfacebook-iconpinterest-iconemail-iconhealth wellnessstethoscopeStoriesfacebooktwitteryoutubepinterestinstagramLinkedIn
    https://healthtalk.unchealthcare.org/how-a-broken-bone-heals/
    The healing process is separated into three stages: Hematoma formation, Bone growth, Bone remodeling. […] “Fracture hematoma is an incredible substance,” Dr. Miles says. “It has molecules to stop the bleeding, as well as signaling molecules and growth factors to direct the body to heal the fracture.” […] “This is a continual process. Some bones will continue to remodel for over a year after a break,” Dr. Miles says. […] To stop broken bones from healing in the wrong shape, it is important that they are realigned into their original position. […] Treatment can be surgical or nonsurgical, depending on the severity of the fracture and the patient’s age, medications and health conditions. […] “It’s an external stabilizer,” Dr. Miles says. “If the internal architecture is disrupted, then we put support on the outside for a period of time to provide stability as the bone heals and regains its strength.” […] “In surgery, we help to augment or support the bone’s internal stability with an artificial device, usually made of metal,” Dr. Miles says. […] If a bone is broken around the hip or shoulder and is unlikely to heal, joint replacement is sometimes necessary.
  • #2 How do broken bones heal?
    https://www.medicalnewstoday.com/articles/318961
    New bone starts to form mostly at the edges of the fracture. This happens in much the same way that bone is made during normal, everyday maintenance. […] To fill the void space between the broken ends, cells produce soft cartilage. […] Cartilage, or soft callus, formation peaks around 8 days after injury. However, it is not a permanent solution because cartilage is not strong enough to withstand the pressures that bones experience in our daily lives. […] The soft callus is replaced first with a hard, bone-like callus. This is pretty strong, but it is still not as strong as bone. […] Around 3 to 4 weeks after the injury, the formation of new mature bone starts. […] However, there are cases wherein bone healing is not successful, and these cause significant health problems. […] Fractures that take an abnormally long time to heal, or those that do not join back together at all, occur at a rate of around 10 percent.
  • #2 Broken Arm: Symptoms, Causes, Risk Factors & Treatment
    https://resources.healthgrades.com/right-care/bones-joints-and-muscles/broken-arm
    The goal of broken arm treatment is to re-align the ends of the bones and allow them to grow back together with minimal complications or deformity. […] Some of the most common complications of a broken arm or the surgery to treat it are: Compartment syndrome, a post-fracture complication in which excessive bleeding or swelling cut off the arm’s blood supply leading to tissue death resulting in the need for amputation, damage to surrounding blood vessels and nerves leading to permanent nerve damage, infection of the bone if it pushes through the skin, or from postoperative infection, poor bone healing or non-union in which the bones fail to reconnect after surgery.
  • #2 Open Fractures – OrthoInfo – AAOS
    https://orthoinfo.aaos.org/en/diseases–conditions/open-fractures/
    A bone infection can be difficult to treat. The patient may require long-term antibiotics and multiple surgical procedures. In extreme cases where the infection cannot be cured and the patient’s life is threatened, amputation may even be necessary. For this reason, preventing infection is the focus of early treatment. […] The severity of an open fracture depends on several factors, including: The size and number of the fracture fragments, The damage to surrounding soft tissues (muscles, tendons, etc.), The location of the wound and whether the soft tissues in the area have good blood supply. […] Some open fractures may have difficulty healing because of damage to the blood flow around the bone at the time of injury. When a broken bone fails to heal, it is called a nonunion. If the bone does not heal, you may need further surgery using techniques to encourage healing. […] This extremely painful condition develops when the injured arm or leg swells and pressure builds within the muscles. When this happens, you need immediate surgery to relieve the pressure. If left untreated, compartment syndrome can lead to permanent tissue damage and loss of function in the limb.
  • #2 Broken Arm: Types, Symptoms, Causes and Treatment
    https://www.carehospitals.com/diseases-conditions/broken-arm
    In more severe cases, surgery might be necessary to stabilise the fractured arm using fixation devices like wires, plates, nails, or screws. […] A broken arm can lead to various complications. […] Risk factors for complications include old age, diabetes, smoking, low vitamin D levels, and certain medication. […] A broken arm may cause following complications: […] Some bones may not heal properly, even with appropriate treatment. […] Serious complications include: […] Compartment syndrome, caused by excessive swelling, can result in loss of sensation and function, requiring emergency surgical intervention. […] Open fractures expose bare bones to the environment, increasing the risk of infection. […] Risk factors include being a child or teenager, participating in contact sports, and being over 65 years old.
  • #2 Broken Arm (Arm Fracture): Causes, Diagnosis, and More
    https://www.health.com/broken-arm-8646547
    The treatment for a broken arm depends on the type and severity of the fracture. The goal of treatment is to put the fractured ends of the bone back in place and keep them stable so they can heal properly. […] In some cases of displaced fractures, surgery to realign and stabilize the bones may be necessary. […] A bone fracture can increase your risk of developing arthritis, a condition where the cartilage in your joint becomes damaged, causing pain and stiffness. […] If you have an open fracture, where the bone breaks through the skin, there’s a higher risk of infection.
  • #2
    https://www.amerikanhastanesi.org/mayo-clinic-care-network/mayo-clinic-health-information-library/diseases-conditions/broken-arm
    Certain medical conditions or physical activities can increase the risk of a broken arm. […] Conditions that weaken bones, such as osteoporosis and bone tumors, increase your risk of a broken arm. This type of break is known as a pathological fracture. […] The prognosis for most arm fractures is very good if treated early. But complications can include: Uneven growth. Because a child’s arm bones are still growing, a fracture in the area where growth occurs near each end of a long bone (growth plate) can interfere with that bone’s growth. Osteoarthritis. Fractures that extend into a joint can cause arthritis there years later. Stiffness. The immobilization required to heal a fracture in the upper arm bone can sometimes result in painfully limited range of motion of the elbow or shoulder. Bone infection. If a part of your broken bone protrudes through your skin, it can be exposed to germs that can cause infection. Prompt treatment of this type of fracture is critical. Nerve or blood vessel injury. If the upper arm bone (humerus) fractures into two or more pieces, the jagged ends can injure nearby nerves and blood vessels. Seek immediate medical attention if you notice numbness or circulation problems. Compartment syndrome. Excessive swelling of the injured arm can cut off the blood supply to part of the arm, causing pain and numbness. Typically occurring 24 to 48 hours after the injury, compartment syndrome is a medical emergency that requires surgery.
  • #2 Broken Arm: Symptoms, Causes, Diagnosis, Treatment
    https://www.webmd.com/a-to-z-guides/broken-arm
    In addition to splinting the broken arm, the physician will prescribe medicines for pain control and ice to decrease swelling. […] Most broken arms will not require admission to the hospital. For all other fractures, the treating doctor will suggest you follow up with an orthopedic doctor (bone specialist). […] The majority of fractures heal and normal arm movement is restored. […] Many of these factors based on the individual injury and medical history may determine the final outcome of a broken bone: Earlier treatment usually improves results. […] Fractures that have multiple breaks, involve a joint, have open wounds, or become infected could have healing complications. […] Chronic diseases such as osteoporosis and diabetes may slow the healing process.
  • #2 Fractures Without Significant Trauma | UW Radiology
    https://rad.washington.edu/about-us/academic-sections/musculoskeletal-radiology/teaching-materials/online-musculoskeletal-radiology-book/fractures-without-significant-trauma/
    When there is normal bone but just not enough of it, we call it osteoporosis. This is by far the most common reason for a fracture without significant trauma. […] Osteoporosis lies in wait for every living human, if only they live long enough to develop it. This is especially true of postmenopausal women, who may lose up to 20 % of their bone mass in a year in extreme cases. Other risk factors for osteoporosis include Caucasian heritage, smoking, lack of antigravity exercise, low dietary calcium intake, and various amenorrheic states. […] Now, how do you go about diagnosing osteoporosis? Well, if it is early osteoporosis, looking at radiographs won’t help you much, because plain films are hideously insensitive to osteopenia. […] To definitively diagnose osteoporosis, one must perform some type of quantitative imaging study on the bone in question. The current state of the art in quantitative bone assessment is dual energy X-ray absorptiometry (DEXA).
  • #2 Broken arm – Treatment, Types, Tests for arm fractures @Well Health Pro
    https://physiopretoria.co.za/pain/shoulder/broken-arm
    When fracturing your arm a discontinuity in your bone results from mechanical forces that exceeds your bones ability to withstand them. Arm fractures can occur in a variety of methods. […] Your bone was subjected to a sudden overwhelming force, usually in the setting of trauma. A disease process can weaken your bone, known as pathological fractures. Long term application of high loads (e.g. boxing), can result in a stress fracture. […] Treatment of your fractured arm depends on the alignment of your broken bones, the stability of your joints and the integrity of your nerves and blood vessels. A broken bone closer to your wrist is more complex due to your many wrist bones, but there’s a higher risk of nerve injury closer to your shoulder. These are things to consider when determining how severe your arm fracture is.
  • #2 Broken Arm: Treatment and Recovery – Fracture Healing
    https://fracturehealing.ca/broken-arm-treatment-and-recovery/
    It’s crucial that you listen to these recommendations to have faster fracture healing and avoid complications. […] If you have severe pain after 7 days, this may be a red flag that you have an infection, or it’s not healing properly. […] Physical therapy helps reduce and manage this symptom and improves muscle strength as your broken arm continues to heal. […] Your recovery time will largely depend on the fracture site, severity, and how well you take care of it. Small fractures in your upper arm can heal in as little as 8 weeks, whereas more complicated breaks can take 12 or more.