Ścięgna podudzia – Patofizjologia i mechanizm

Ścięgna podudzia
Patofizjologia i mechanizm

Zespół stresu piszczelowego przyśrodkowego (MTSS) to przewlekły stan zapalny tkanek okołokostnych kości piszczelowej, będący jedną z najczęstszych kontuzji przeciążeniowych u sportowców, zwłaszcza biegaczy i rekrutów wojskowych. Patogeneza MTSS jest wieloczynnikowa i obejmuje mikrourazy kostne, obniżoną gęstość mineralną kości (BMD), zapalenie okostnej oraz trakcję powięziową mięśni, zwłaszcza mięśnia podeszwowego i piszczelowego tylnego. Powtarzalne obciążenia ekscentryczne prowadzą do mikropęknięć i reakcji stresowej kości, które w przypadku braku odpowiedniej regeneracji mogą progresować do złamań przeciążeniowych. Kluczowe czynniki ryzyka to zaburzenia biomechaniczne (np. nadmierna pronacja, nieprawidłowa rotacja biodra), błędy treningowe (nagły wzrost intensywności, bieganie po twardych nawierzchniach), niedobór witaminy D, osteoporoza oraz BMI >30. MTSS charakteryzuje się bólem wzdłuż przyśrodkowej krawędzi piszczeli, z możliwym podziałem na typy przyśrodkowy, przednio-boczny i tylno-przyśrodkowy, zależnie od lokalizacji i mechanizmu trakcji powięziowej.

Patofizjologia ścięgna podudzia (shin splints)

Mechanizm powstawania urazów
Czynniki ryzyka i patogeneza
Patofizjologia na poziomie tkankowym
Kontinuum urazów piszczelowych
Różnice patogenetyczne w różnych typach MTSS
Aktualne wyzwania w zrozumieniu patogenezy

Wnioski dotyczące patogenezy ścięgien podudzia

Kolejne rozdziały

Patofizjologia ścięgna podudzia (shin splints)

Ścięgna podudzia, znane w medycynie jako zespół stresu piszczelowego przyśrodkowego (medial tibial stress syndrome – MTSS), to stan zapalny tkanek otaczających kość piszczelową (tibię), który powoduje ból w dolnej części kończyny dolnej. Patogeneza tego schorzenia jest złożona i nie do końca poznana, pomimo tego że jest to jedna z najczęstszych kontuzji przeciążeniowych u sportowców, dotykająca znaczny odsetek biegaczy, tancerzy i rekrutów wojskowych¹².

Mechanizm powstawania urazów

Obecnie istnieje kilka teorii wyjaśniających mechanizm powstawania ścięgien podudzia, które nie wykluczają się wzajemnie i mogą współistnieć:

Teoria przeciążenia kości

Jednym z głównych mechanizmów powstawania MTSS jest reakcja kości na nadmierne obciążenia. Powtarzalny nacisk podczas aktywności fizycznej, jak bieganie czy skakanie, prowadzi do przeciążenia kości piszczelowej, powodując mikrourazy i zmiany w gęstości mineralnej kości³. Badania wykazały, że pacjenci z MTSS mają niższą gęstość mineralną kości (BMD) w miejscu urazu w porównaniu z grupą kontrolną⁴. Gdy kość zostaje poddana nadmiernemu obciążeniu, powstaje reakcja stresowa⁵. Jeśli organizm nie ma wystarczająco dużo czasu na regenerację między treningami, mikropęknięcia nie są prawidłowo naprawiane, co prowadzi do nasilenia stanu zapalnego i bólu⁶.

Co istotne, Johnell i współpracownicy wykazali, że mikrourazy są przyczyną MTSS na podstawie biopsji kostnych uzyskanych od pacjentów z przewlekłym MTSS. U większości, choć nie u wszystkich pacjentów z MTSS, zaobserwowano zmiany kostne w biopsjach (u 22 z 35 pacjentów)⁷⁸.

Teoria zapalenia okostnej

Innym mechanizmem jest trakcja powięziowa powodująca zapalenie okostnej (periostitis). Mięśnie łydki, szczególnie mięsień piszczelowy tylny i mięsień zginacz długi palców, a także mięsień podeszwowy, przyczepiają się do przyśrodkowej krawędzi kości piszczelowej za pośrednictwem powięzi głębokiej podudzia⁹. Powtarzające się skurcze tych mięśni powodują pociąganie okostnej, co prowadzi do stanu zapalnego¹⁰.

Beck i Osternig w swoim badaniu wykazali, że MTSS może być wywołane przez trakcję mięśniową okostnej, przy czym główną rolę odgrywa mięsień podeszwowy (soleus)¹¹. Z tego powodu MTSS jest czasami nazywane „zespołem mięśnia podeszwowego” (soleus syndrome).

Ból związany z MTSS jest wywołany zakłóceniem włókien Sharpeya’a, które łączą powięź przyśrodkową mięśnia podeszwowego przez okostną kości piszczelowej w miejscu jej przyczepu do kości¹².

Teoria łączona

Najnowsze badania sugerują, że MTSS może być wynikiem zarówno trakcji powięziowej, jak i przeciążenia kości, lub kombinacji obu tych czynników¹³. Przy powtarzalnym stresie siły uderzeniowe ekscentrycznie męczą mięsień podeszwowy i tworzą powtarzające się zginanie lub wyginanie kości piszczelowej, przyczyniając się do powstania ścięgien podudzia¹⁴.

Ponadto nadmierne obciążenie podczas aktywności fizycznej może prowadzić do mikropęknięć w tkance kostnej i zapalenia tkanek miękkich. Jeśli ten stan nie jest odpowiednio leczony, może postępować do bardziej poważnych urazów, takich jak złamania przeciążeniowe¹⁵¹⁶.

Czynniki ryzyka i patogeneza

Ścięgna podudzia rozwijają się w wyniku złożonej interakcji między różnymi czynnikami ryzyka:

Czynniki biomechaniczne

Jednym z głównych czynników przyczyniających się do rozwoju MTSS są zaburzenia biomechaniczne:

Nadmierna pronacja stopy – nadmierne przesunięcie ciężaru na wewnętrzną krawędź stopy podczas chodu lub biegu znacząco zwiększa obciążenie piszczeli i okolicznych struktur¹⁷¹⁸.
Płaskostopie lub sztywne wysokie łuki stopy – obie te wady anatomiczne zmieniają sposób, w jaki siły są przenoszone przez dolną część nogi¹⁹.
Nieprawidłowa biomechanika miednicy i kolan – osłabienie mięśni pośladkowych i odwodzicieli biodra często prowadzi do przeciążenia dolnych części nóg²⁰.
Zaburzenia rotacji biodra – nadmierna zewnętrzna rotacja biodra jest znanym czynnikiem przyczyniającym się do rozwoju ścięgien podudzia²¹.

Czynniki treningowe

Błędy treningowe i nagłe zmiany w aktywności fizycznej są główną przyczyną rozwoju MTSS:

Nagły wzrost intensywności lub częstotliwości treningów – zwiększenie liczby dni treningowych w tygodniu, wydłużenie dystansu biegu lub dodanie treningów na wzgórzach po bieganiu wyłącznie po płaskich powierzchniach²².
Bieganie po twardych powierzchniach – takich jak beton czy asfalt, które zwiększają siły uderzeniowe przenoszone na piszczel²³.
Nieodpowiednie obuwie – zużyte lub niewłaściwie dobrane buty, które nie zapewniają odpowiedniego wsparcia i amortyzacji²⁴.

Czynniki osobnicze

Niedobór witaminy D i osteoporoza – zwiększają ryzyko wystąpienia MTSS²⁵.
Wskaźnik masy ciała (BMI) powyżej 30 – zwiększa obciążenie kończyn dolnych²⁶.
Dysproporcje siły mięśniowej – nierównowaga między mięśniami przedziału przedniego i tylnego podudzia może przyczyniać się do rozwoju MTSS²⁷.

Patofizjologia na poziomie tkankowym

Na poziomie tkankowym MTSS charakteryzuje się kilkoma procesami patologicznymi:

Zmiany w tkance kostnej

Ścięgna podudzia wiążą się ze zmianami w tkance kostnej, które obejmują:

Mikropęknięcia korowe – podobnie jak w przypadku złamań zmęczeniowych (stress fractures), mikrourazy kostne występujące w MTSS są prawdopodobnie wynikiem uszkodzenia rozciągającego, powodującego odklejanie się osteonów na liniach cementowych²⁸.
Zmniejszona gęstość mineralna kości – badania wykazały, że pacjenci z MTSS mają niższą gęstość mineralną kości w miejscu urazu²⁹.
Reakcja stresowa kości – ciągłe obciążenie powoduje reakcję stresową kości, która może prowadzić do zapalenia okostnej i mikrourazów³⁰.

Zmiany w tkankach miękkich

Obok zmian kostnych, MTSS charakteryzuje się patologicznymi zmianami w tkankach miękkich:

Zapalenie okostnej (periostitis) – zapalenie delikatnej błony otaczającej kość piszczelową³¹.
Mikropęknięcia w ścięgnach i powięziach – powtarzające się nadmierne naprężenia mogą prowadzić do mikropęknięć w ścięgnach i powięziach³².
Dysfunkcja mięśniowa – niektóre mięśnie mogą być zaangażowane w patogenezę MTSS, w tym mięsień piszczelowy tylny, piszczelowy przedni i mięsień podeszwowy³³.

Zaburzona mechanika obciążenia

Istotnym elementem patofizjologii MTSS jest zaburzona mechanika obciążenia podczas ruchu:

Nadmierne zginanie kości piszczelowej – powtarzające się zginanie kości piszczelowej podczas aktywności fizycznej może przekraczać siłę przeciwstawną mięśni kończyny dolnej³⁴.
Zmęczenie ekscentryczne – prowadzące skurcze mięśni ekscentrycznych (podczas lądowania) są uważane za główny mechanizm powstawania MTSS³⁵.
Nieprawidłowy rozkład nacisku na stopie – większy nacisk po stronie przyśrodkowej niż po stronie bocznej jest uważany za główny czynnik ryzyka³⁶.

Kontinuum urazów piszczelowych

Wiele dowodów sugeruje, że MTSS i złamania przeciążeniowe piszczeli (Tibial Stress Fractures – TSF) mogą znajdować się na tym samym kontinuum urazów, różniąc się nasileniem uszkodzenia tkanki kostnej:

Wczesne stadium – charakteryzuje się zapaleniem tkanek miękkich i okostnej, bez znaczących zmian w kości³⁷.
Stadium pośrednie – obejmuje reakcję stresową kości i mikrourazy kostne, ale bez pełnowymiarowych pęknięć³⁸.
Zaawansowane stadium – może postępować do złamania przeciążeniowego, jeśli nie jest odpowiednio leczone³⁹.

Złamanie przeciążeniowe jest faktycznie rodzajem złamania kości. W przypadku ścięgien podudzia, złamanie jest spowodowane nadmiernym obciążeniem wynikającym z uderzenia, takiego jak bieganie lub skakanie⁴⁰.

Różnice patogenetyczne w różnych typach MTSS

Ścięgna podudzia mogą występować w różnych typach, w zależności od lokalizacji i przyczyny bólu:

Typ MTSS	Lokalizacja	Mechanizm	Zaangażowane struktury
Przyśrodkowy	Ból wzdłuż przyśrodkowej krawędzi piszczeli	Trakcja powięziowa mięśnia piszczelowego tylnego i mięśnia podeszwowego	Okostna przyśrodkowej krawędzi piszczeli
Przednio-boczny	Ból na przedniej lub bocznej powierzchni piszczeli	Trakcja powięziowa mięśnia piszczelowego przedniego na piszczeli i błonie międzykostnej	Okostna przedniej i bocznej powierzchni piszczeli
Tylno-przyśrodkowy	Ból na tylnej i przyśrodkowej części podudzia	Trakcja powięziowa mięśnia piszczelowego tylnego i mięśnia podeszwowego	Okostna tylnej i przyśrodkowej części piszczeli

Ból odczuwany po wewnętrznej stronie kości piszczelowej nazywany jest przyśrodkowym ścięgnem podudzia (medial shin splints), podczas gdy termin „przednie ścięgno podudzia” (anterior shin splints) odnosi się do bólu odczuwanego po zewnętrznej stronie. Przyśrodkowe ścięgna podudzia występują częściej, jednak w ciężkich przypadkach ból może być odczuwany po obu stronach kości piszczelowej⁴¹⁴²⁴³.

Aktualne wyzwania w zrozumieniu patogenezy

Mimo licznych badań, dokładny mechanizm powstawania MTSS pozostaje niejasny z kilku powodów:

Heterogeniczność kliniczna – różne prezentacje kliniczne ścięgien podudzia sugerują, że może istnieć kilka podtypów z różnymi etiologiami⁴⁴.
Brak badań prospektywnych – większość badań dotyczących MTSS ma charakter retrospektywny, co utrudnia ustalenie przyczynowości⁴⁵.
Nakładające się objawy – MTSS może być mylony z innymi stanami, takimi jak zespół ciasnoty przedziałów powięziowych (compartment syndrome) czy złamania przeciążeniowe⁴⁶.

Istotne jest, aby odróżnić MTSS od innych przyczyn bólu podudzia, takich jak zespół ciasnoty przedziałów powięziowych, zespół uwięźnięcia tętnicy podkolanowej, różne zespoły uwięźnięcia nerwów czy skręcenie mięśnia brzuchatego łydki i mięśnia podeszwowego⁴⁷.

Wnioski dotyczące patogenezy ścięgien podudzia

Ścięgna podudzia (MTSS) stanowią złożony problem medyczny, którego dokładna patogeneza pozostaje nie w pełni wyjaśniona, mimo że jest to jedna z najczęstszych kontuzji przeciążeniowych. Obecne dowody sugerują, że mechanizm rozwoju tego schorzenia obejmuje kombinację czynników: zapalenie okostnej, przeciążenie kości piszczelowej, mikrourazy w obrębie tkanki kostnej i mięśniowej oraz zaburzoną biomechanikę ruchu⁴⁸⁴⁹.

Ciągłe pociąganie przez mięśnie za pośrednictwem włókien Sharpeya’a, które łączą mięśnie z okostną, prowadzi do zapalenia okostnej i reakcji stresowej kości. Powtarzalne obciążenia, szczególnie podczas biegania i skoków, przyczyniają się do mikropęknięć w kości, które przy braku odpowiedniej regeneracji mogą postępować do poważniejszych urazów⁵⁰⁵¹.

Zrozumienie patofizjologii ścięgien podudzia ma kluczowe znaczenie dla opracowania skutecznych strategii profilaktycznych i terapeutycznych. Badania wskazują na konieczność kompleksowego podejścia, uwzględniającego modyfikację czynników ryzyka, odpowiednią progresję treningową, właściwe obuwie i wkładki ortopedyczne oraz pracę nad biomechaniką ruchu⁵².

Pomimo wielu przeprowadzonych badań, eksperci nadal nie są zgodni co do jednej, konkretnej przyczyny MTSS, co wskazuje na potrzebę dalszych badań prospektywnych w celu lepszego zrozumienia tego schorzenia i opracowania bardziej skutecznych metod leczenia⁵³⁵⁴.

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Materiały źródłowe

#1 Shin Splint: A Review
https://pmc.ncbi.nlm.nih.gov/articles/PMC9937638/
Medial tibial stress syndrome (MTSS), usually referred to as „shin splints,” is a common overuse injury of the lower extremities affecting a large percentage of athletes. A variety of factors can lead to shin splints, including overtraining, poor footwear, muscular imbalances at the ankle, overtight or weak triceps surae muscles, imbalances at the thoracolumbar complex, and a body mass index (BMI) above 30. […] The pain caused by a shin splint should be categorized according to its location and cause, such as lower medial tibial pain caused by periostitis or upper lateral tibial pain caused by raised compartment pressure. […] In order to prevent MTSS or shin splints, it is important to avoid excessive stress. […] According to one theory, medial tibial stress syndrome puts a load on the skeleton when there is a lot of activity.
#2 Shin Splints – OrthoInfo – AAOS
https://orthoinfo.aaos.org/en/diseases–conditions/shin-splints/
Shin splints (medial tibial stress syndrome) is an inflammation of the muscles, tendons, and bone tissue around your tibia. Pain typically occurs along the inner border of the tibia, where muscles attach to the bone. […] In general, shin splints develop when the muscle and bone tissue (periosteum) in the leg become overworked by repetitive activity. […] Shin splints often occur after sudden changes in physical activity. These can be: Changes in frequency, such as increasing the number of days you exercise each week; Changes in duration, such as running longer distances; Changes in intensity, such as running on hills after running on only flat surfaces. […] Other factors that contribute to shin splints include: Having flat feet or abnormally rigid arches; Exercising with improper or worn-out footwear. […] Runners have the highest risk of developing shin splints. Dancers and military recruits are two other groups frequently diagnosed with the condition.
#3 The Complete Guide to Shin Splints | Kinetic Labs
https://kineticlabs.ca/blog/the-complete-guide-to-shin-splints/
Bone overloading is a recent proposed mechanism for the development of shin splints. At the tibial border, there is evidence to show decreased bone mineral density in symptomatic individuals. Once bone mineral density improves, symptoms also improve. In some cases, the bone at the injured area showed signs of impaired repair. With the high impact forces and repetitive nature of running, it is logical that these forces can over-stress bone and lead to pain. […] Its plausible that either mechanism or both together can lead to the development of medial tibial stress syndrome.
#4 Aetiology and mechanisms of injury in medial tibial stress syndrome: Current and future developments
https://pmc.ncbi.nlm.nih.gov/articles/PMC4573502/
Medial tibial stress syndrome (MTSS) is a debilitating overuse injury of the tibia sustained by individuals who perform recurrent impact exercise such as athletes and military recruits. Characterised by diffuse tibial anteromedial or posteromedial surface subcutaneous periostitis, in most cases it is also an injury involving underlying cortical bone microtrauma, although it is not clear if the soft tissue or cortical bone reaction occurs first. […] Retrospective studies have demonstrated that MTSS patients have lower bone mineral density (BMD) at the injury site than exercising controls, and preliminary data indicates the BMD is lower in MTSS subjects than tibial stress fracture (TSF) subjects. […] Thus, the balance between BMD and cortical bone geometry may predict an individual’s likelihood of developing MTSS. However, prospective longitudinal studies are needed to determine how these factors alter during the development of the injury and to find the detailed structural cause, which is still unknown.
#5
https://solushin.com/blogs/clinical-info/what-exactly-are-shin-splints?srsltid=AfmBOoqErNY2yvd02vkJz_KOL0l5PLJV6BSa4GW1OMZuI4YAke1iROu0
Shin splints (medial tibial stress syndrome) causes pain along the distal-third of the posteromedial tibial border. […] For most, the term shin splints encompass the most common presentation under the umbrella: medial tibial stress syndrome (MTSS). […] While the pathophysiology is poorly understood and frequently debated, current evidence suggests that MTSS is associated with fascial traction, overloading of the tibia, or a combination of the two. […] Excessive bone loading due to repeated bending of the tibia is believed to contribute to MTSS. […] If the tibia undergoes excessive load, a stress reaction occurs. […] This was also noted by Magnusson et al., who observed reduced bone mineral density in patients with MTSS compared to healthy controls, where the bone density returned to normal as the MTSS symptoms subsided. […] Muscle fibre traction via Sharpey’s fibres is shown to result in tibial periostitis at the MTSS injury site. […] Evidence suggests shin splints (MTSS) is either bone loading, some form of fasciopathy, or a combination of both.
#6 Understanding Medial Shin Splints: Causes, Mechanism, and Management — Mindful Living Chiropractic and Acupuncture
https://mindfullivingpittsburgh.com/blog/understanding-medial-shin-splints-causes-mechanism-and-management
Medial shin splints involve pain along the tibia, or shin bone, often caused by repetitive stress and overuse. The pain originates in the periosteum, the tissue lining the tibia, which becomes inflamed due to the constant pulling and pounding that occurs during physical activityespecially when the body doesn’t have time to recover between sessions. […] Shin splints develop when repeated physical activitylike running or jumpingleads to microtrauma in the tissues around the tibia. If the body doesnt get enough rest, these tissues dont have time to heal properly, resulting in inflammation and pain. Over time, this can lead to a more serious injury if not addressed. […] One of the biggest culprits behind shin splints is poor biomechanics, particularly overpronationwhen the foot rolls too far inward during stride. This movement alters how stress is distributed through the lower leg, increasing the load on the tibia and surrounding structures.
#7 Aetiology and mechanisms of injury in medial tibial stress syndrome: Current and future developments
https://pmc.ncbi.nlm.nih.gov/articles/PMC4573502/
MTSS was initially believed to be an anteromedial and/or posteromedial subcutaneous soft tissue injury only with an associated periostitis; a reasonable assumption given that no fracture or microfractures could be visualised on plane radiographs or computed tomography (CT) images. This is unlike a TSF, where a small partial cortical bone fracture can sometimes be identified at the site of pain and oedema, occasionally on a radiograph but more readily on CT, depending on the views imaged. However, it is now known that MTSS involves cortical bone microfractures associated with the periostitis, if not in all cases, then certainly in the majority of cases. […] Johnell et al first demonstrated microtrauma was a cause of MTSS from bone biopsies obtained from chronic MTSS patients undergoing fasciotomy after failing to respond to conservative treatment, and bone biopsies from control subjects at autopsy or who were undergoing surgery for other injuries.
#8 Aetiology and mechanisms of injury in medial tibial stress syndrome: Current and future developments
https://pmc.ncbi.nlm.nih.gov/articles/PMC4573502/
As the majority, but not all, MTSS patients had bone changes on biopsy (22 of 35 patients), the authors concluded MTSS was caused by microfractures in most, but not in all cases. […] Like TSFs, cortical bone microtrauma occurring in MTSS is likely the result of tensile failure causing osteon debonding at the cement lines as the tibial microstructure is unable to repair quickly enough through adaptive bone remodelling. However, unlike a TSF, this microdamage clearly does not extend beyond the microscopic lamellae structure, at least in many cases, so that crack development is arrested in MTSS before a macroscopic partial fracture transversing the osteons occurs. […] It is apparent from the current evidence available that MTSS involves cortical bone microtrauma in the majority of cases. However, it is not clear if cortical bone microcracks cause tibial periostitis or if tibial periostitis results in cortical bone microcracks.
#9 The Complete Guide to Shin Splints | Kinetic Labs
https://kineticlabs.ca/blog/the-complete-guide-to-shin-splints/
Shin splints, also known as medial tibial stress syndrome (MTSS), is a common condition defined by pain along the shin bone (tibia). This is one of the most common lower body conditions, comprising 16% of all running-injuries. It is particularly common in athletes in military recruits. […] There are two main theories for why medial tibial stress syndrome develops: Fasciopathy and Bone overload. […] There is thick connective tissue, known as fascia, that attaches to the posteromedial border of the shin (i.e. the site where shin splints occur). The muscles within the deep posterior compartment of the lower leg namely flexor digitorum longus and tibialis posterior can tighten the fascia when they contract. This traction force can pull on the attachment site on the periosteum of the tibia and cause symptoms of medial tibial stress.
#10
https://www.orthobullets.com/knee-and-sports/3108/tibial-stress-syndrome-shin-splints
Tibial stress syndrome (also known as shin splints) is an overuse injury or repetitive-load injury of the shin area that leads to persistent dull anterior leg pain. […] Diagnosis is made clinically with tenderness along the posteromedial distal tibia made worse with plantarflexion. […] Etiology: Pathophysiology caused by a traction periostitis. […] Anterolateral traction periostitis of tibialis anterior on tibia and interosseous membrane. […] Posteromedial traction periostitis of tibialis posterior and soleus.
#11 A review article of medial tibial stress syndrome – Journal of Musculoskeletal Surgery and Research
https://journalmsr.com/a-review-article-of-medial-tibial-stress-syndrome/
Beck and Osternig concluded in their study that MTSS can be induced by muscle traction of the periosteum with the soleus being the major one. […] Hence, MTSS is also known as soleus syndrome. […] Based on the findings of several studies, MTSS is not a compartment syndrome since measured compartment pressures were normal although other authors reported variation in compartment pressures among MTSS patients.
#12 Shin splints – Wikipedia
https://en.wikipedia.org/wiki/Shin_splints
Shin splints can be attributed to the overloading of the lower leg due to biomechanical irregularities resulting in an increase in stress exerted on the tibia. […] A sudden increase in intensity or frequency in activity level fatigues muscles too quickly to help shock absorption properly, forcing the tibia to absorb most of the impact. […] The pain associated with shin splints is caused from a disruption of Sharpey’s fibres that connect the medial soleus fascia through the periosteum of the tibia where it inserts into the bone. […] With repetitive stress, the impact forces eccentrically fatigue the soleus and create repeated tibial bending or bowing, contributing to shin splints. […] Improper footwear, including worn-out shoes, can also contribute to shin splints.
#13
https://solushin.com/blogs/clinical-info/what-exactly-are-shin-splints?srsltid=AfmBOoqErNY2yvd02vkJz_KOL0l5PLJV6BSa4GW1OMZuI4YAke1iROu0
Shin splints (medial tibial stress syndrome) causes pain along the distal-third of the posteromedial tibial border. […] For most, the term shin splints encompass the most common presentation under the umbrella: medial tibial stress syndrome (MTSS). […] While the pathophysiology is poorly understood and frequently debated, current evidence suggests that MTSS is associated with fascial traction, overloading of the tibia, or a combination of the two. […] Excessive bone loading due to repeated bending of the tibia is believed to contribute to MTSS. […] If the tibia undergoes excessive load, a stress reaction occurs. […] This was also noted by Magnusson et al., who observed reduced bone mineral density in patients with MTSS compared to healthy controls, where the bone density returned to normal as the MTSS symptoms subsided. […] Muscle fibre traction via Sharpey’s fibres is shown to result in tibial periostitis at the MTSS injury site. […] Evidence suggests shin splints (MTSS) is either bone loading, some form of fasciopathy, or a combination of both.
#14 Shin splints – Wikipedia
https://en.wikipedia.org/wiki/Shin_splints
Shin splints can be attributed to the overloading of the lower leg due to biomechanical irregularities resulting in an increase in stress exerted on the tibia. […] A sudden increase in intensity or frequency in activity level fatigues muscles too quickly to help shock absorption properly, forcing the tibia to absorb most of the impact. […] The pain associated with shin splints is caused from a disruption of Sharpey’s fibres that connect the medial soleus fascia through the periosteum of the tibia where it inserts into the bone. […] With repetitive stress, the impact forces eccentrically fatigue the soleus and create repeated tibial bending or bowing, contributing to shin splints. […] Improper footwear, including worn-out shoes, can also contribute to shin splints.
#15 What are Shin Splints? A Breakdown of This Common Sports Injury
https://www.hawaiipacifichealth.org/healthier-hawaii/live-healthy/what-are-shin-splints-a-breakdown-of-this-common-sports-injury/
Shin splints are a common injury athletes and non-athletes alike experience due to stress on the connective tissues muscles, tendons and bone tissue that surround the shinbone. […] This stress causes inflammation, which in turn causes pain that radiates up and down the front of the leg. […] Shin splints are medically known as medial tibial stress syndrome and typically are caused by overuse stress injury, meaning an overload that causes too much stress to the muscles. […] When this happens, the muscles begin to fail, not doing their job to absorb shock and support the bones and joints of the lower leg, which results in the bones carrying the load instead. […] If left untreated, shin splints and stress reaction can progress ultimately to stress fracture, which is when the bone can no longer handle the load being placed on it and it cracks.
#16 What are Shin Splints? A Breakdown of This Common Sports Injury
https://www.hawaiipacifichealth.org/healthier-hawaii/live-healthy/what-are-shin-splints-a-breakdown-of-this-common-sports-injury/
A fracture means broken bone, so a stress fracture is truly a type of broken bone. In the case of shin splints, a fracture is caused by an overload of stress from impact, such as running or jumping. […] Shin splints are caused by stress on the connective tissues muscles, tendons and bone tissue that surround the shinbone. This stress causes inflammation, which in turn causes pain up and down the front of the leg. […] Acknowledging that shin splints is the first stage in a possibly more serious and dangerous set of injuries is important. Early diagnosis and treatment can prevent stress fractures.
#17 Understanding Medial Shin Splints: Causes, Mechanism, and Management — Mindful Living Chiropractic and Acupuncture
https://mindfullivingpittsburgh.com/blog/understanding-medial-shin-splints-causes-mechanism-and-management
Medial shin splints involve pain along the tibia, or shin bone, often caused by repetitive stress and overuse. The pain originates in the periosteum, the tissue lining the tibia, which becomes inflamed due to the constant pulling and pounding that occurs during physical activityespecially when the body doesn’t have time to recover between sessions. […] Shin splints develop when repeated physical activitylike running or jumpingleads to microtrauma in the tissues around the tibia. If the body doesnt get enough rest, these tissues dont have time to heal properly, resulting in inflammation and pain. Over time, this can lead to a more serious injury if not addressed. […] One of the biggest culprits behind shin splints is poor biomechanics, particularly overpronationwhen the foot rolls too far inward during stride. This movement alters how stress is distributed through the lower leg, increasing the load on the tibia and surrounding structures.
#18 Shin splints: Symptoms, causes, and treatments
https://www.medicalnewstoday.com/articles/242169
Muscle dysfunction: some muscles may also be involved in shin splints, including: tibialis posterior (inside of the ankle), tibialis anterior (running along the shin and top of the foot), soleus (lower calf). […] Foot and ankle overpronation is also thought to be a cause of shin splints. […] This abnormal movement causes muscles to fatigue quicker and may place additional stress on the shinbone. […] An imbalance in foot pressure with greater pressure on the medial side than on the lateral side was the primary risk factor.
#19 Shin Splints – OrthoInfo – AAOS
https://orthoinfo.aaos.org/en/diseases–conditions/shin-splints/
Shin splints (medial tibial stress syndrome) is an inflammation of the muscles, tendons, and bone tissue around your tibia. Pain typically occurs along the inner border of the tibia, where muscles attach to the bone. […] In general, shin splints develop when the muscle and bone tissue (periosteum) in the leg become overworked by repetitive activity. […] Shin splints often occur after sudden changes in physical activity. These can be: Changes in frequency, such as increasing the number of days you exercise each week; Changes in duration, such as running longer distances; Changes in intensity, such as running on hills after running on only flat surfaces. […] Other factors that contribute to shin splints include: Having flat feet or abnormally rigid arches; Exercising with improper or worn-out footwear. […] Runners have the highest risk of developing shin splints. Dancers and military recruits are two other groups frequently diagnosed with the condition.
#20 Best Shin Splint Treatment Sheboygan Creekside Chiropractic
https://creeksidechiro.com/shin-splints
The leading mechanism of injury is repetitive eccentric contraction from running or jumping on hard surfaces (the landing portion of each step is eccentric) (26-28). Excessive or improper training is the leading factor for the development of shin splints (2,3,29-33). […] Foot hyperpronation is a significant risk factor for the development of shin splints, as a collapsing foot puts additional stress on the suspect tissues (4,10,12,14,28,36). […] Hip abductor weakness is a common culprit of many lower chain overuse injuries (86). Excessive external rotation of the hip is another known contributor (4,50).
#21 Best Shin Splint Treatment Sheboygan Creekside Chiropractic
https://creeksidechiro.com/shin-splints
The leading mechanism of injury is repetitive eccentric contraction from running or jumping on hard surfaces (the landing portion of each step is eccentric) (26-28). Excessive or improper training is the leading factor for the development of shin splints (2,3,29-33). […] Foot hyperpronation is a significant risk factor for the development of shin splints, as a collapsing foot puts additional stress on the suspect tissues (4,10,12,14,28,36). […] Hip abductor weakness is a common culprit of many lower chain overuse injuries (86). Excessive external rotation of the hip is another known contributor (4,50).
#22 Shin Splints – OrthoInfo – AAOS
https://orthoinfo.aaos.org/en/diseases–conditions/shin-splints/
Shin splints (medial tibial stress syndrome) is an inflammation of the muscles, tendons, and bone tissue around your tibia. Pain typically occurs along the inner border of the tibia, where muscles attach to the bone. […] In general, shin splints develop when the muscle and bone tissue (periosteum) in the leg become overworked by repetitive activity. […] Shin splints often occur after sudden changes in physical activity. These can be: Changes in frequency, such as increasing the number of days you exercise each week; Changes in duration, such as running longer distances; Changes in intensity, such as running on hills after running on only flat surfaces. […] Other factors that contribute to shin splints include: Having flat feet or abnormally rigid arches; Exercising with improper or worn-out footwear. […] Runners have the highest risk of developing shin splints. Dancers and military recruits are two other groups frequently diagnosed with the condition.
#23 Shin splints – symptoms, causes, treatment and diagnosis | healthdirect
https://www.healthdirect.gov.au/shin-splints
Shin splints cause pain in the lower leg, usually from stress and inflammation around the shin bone. […] Shin splints are caused by repetitive stress and strain on the muscles, tendons and bone tissue around your shinbone. This can be due to: a sudden increase in the amount or intensity of exercise, repeated impact, especially in high-impact activities like running, jumping or sports with sudden starts and stops, issues like flat feet, excessive pronation (inward rolling of the foot) and differences in leg length, weak or tight muscles in the calves, hips or core muscles, running on uneven or hard surfaces, using unsupportive shoes. […] These factors cause repetitive stress, leading to inflammation and pain in the shin area. It can worsen over time if left untreated.
#24 Shin Splints – OrthoInfo – AAOS
https://orthoinfo.aaos.org/en/diseases–conditions/shin-splints/
Shin splints (medial tibial stress syndrome) is an inflammation of the muscles, tendons, and bone tissue around your tibia. Pain typically occurs along the inner border of the tibia, where muscles attach to the bone. […] In general, shin splints develop when the muscle and bone tissue (periosteum) in the leg become overworked by repetitive activity. […] Shin splints often occur after sudden changes in physical activity. These can be: Changes in frequency, such as increasing the number of days you exercise each week; Changes in duration, such as running longer distances; Changes in intensity, such as running on hills after running on only flat surfaces. […] Other factors that contribute to shin splints include: Having flat feet or abnormally rigid arches; Exercising with improper or worn-out footwear. […] Runners have the highest risk of developing shin splints. Dancers and military recruits are two other groups frequently diagnosed with the condition.
#25 Shin Splint: A Review
https://pmc.ncbi.nlm.nih.gov/articles/PMC9937638/
The design and methodological quality of surgical outcome studies done on medial tibial stress syndrome are not so good. […] People having vitamin D deficiency, osteoporosis, and flat feet have a higher chance of getting shin splint. […] The severity of the problem can also be determined by the surrounding periosteal edema. […] Shin splints are brought on by persistent strain on the connective tissues that attach your muscles to the bone and the shinbone. […] Shin splints typically occur as a result of overuse injuries to the leg’s muscle and bone tissue (periosteum). […] A significant increase in workload, volume, and high-impact exercise can put people at risk of MTSS. […] The goal of treatment should be to decrease discomfort and inflammation while also identifying any potential biomechanical issues that might be resolved with stretching and strengthening routines or by using an orthotic device.
#26 Shin Splint: A Review
https://pmc.ncbi.nlm.nih.gov/articles/PMC9937638/
Medial tibial stress syndrome (MTSS), usually referred to as „shin splints,” is a common overuse injury of the lower extremities affecting a large percentage of athletes. A variety of factors can lead to shin splints, including overtraining, poor footwear, muscular imbalances at the ankle, overtight or weak triceps surae muscles, imbalances at the thoracolumbar complex, and a body mass index (BMI) above 30. […] The pain caused by a shin splint should be categorized according to its location and cause, such as lower medial tibial pain caused by periostitis or upper lateral tibial pain caused by raised compartment pressure. […] In order to prevent MTSS or shin splints, it is important to avoid excessive stress. […] According to one theory, medial tibial stress syndrome puts a load on the skeleton when there is a lot of activity.
#27 Shin Splints – SportsMD
https://www.sportsmd.com/sports-injuries/shin-calf-injuries/shin-splints/
The exact cause of shin splints remains unknown. It has been attributed to inflammation of the muscles, tendons, and lining of the bone (periosteum) in this location that causes pain after repetitive activities. […] NATA athletic trainers believe that shin splints may result from an imbalance and relative weakness of the anterior compared to posterior compartment musculature of the lower leg. Others believe that forceful, repetitive downward flexion of the foot (plantar-flexion) may stretch the anterior muscles of the lower leg and increase risk for shin splints. […] Shin splints can be a tough diagnosis to confirm, and often can be made by excluding the other common causes for lower leg pain in athletes. […] Imaging studies can be helpful in supporting a suspected diagnosis of shin splints. A bone scan may demonstrate increased tracer uptake in the muscle or bone lining (periosteum) of the lower leg. MRI may similarly demonstrate some inflammation and fluid (edema) in this location. More importantly, however, the MRI will help to exclude a stress fracture or adjacent muscle/tendon injury in these athletes.
#28 Aetiology and mechanisms of injury in medial tibial stress syndrome: Current and future developments
https://pmc.ncbi.nlm.nih.gov/articles/PMC4573502/
As the majority, but not all, MTSS patients had bone changes on biopsy (22 of 35 patients), the authors concluded MTSS was caused by microfractures in most, but not in all cases. […] Like TSFs, cortical bone microtrauma occurring in MTSS is likely the result of tensile failure causing osteon debonding at the cement lines as the tibial microstructure is unable to repair quickly enough through adaptive bone remodelling. However, unlike a TSF, this microdamage clearly does not extend beyond the microscopic lamellae structure, at least in many cases, so that crack development is arrested in MTSS before a macroscopic partial fracture transversing the osteons occurs. […] It is apparent from the current evidence available that MTSS involves cortical bone microtrauma in the majority of cases. However, it is not clear if cortical bone microcracks cause tibial periostitis or if tibial periostitis results in cortical bone microcracks.
#29
https://solushin.com/blogs/clinical-info/what-exactly-are-shin-splints?srsltid=AfmBOoqErNY2yvd02vkJz_KOL0l5PLJV6BSa4GW1OMZuI4YAke1iROu0
Shin splints (medial tibial stress syndrome) causes pain along the distal-third of the posteromedial tibial border. […] For most, the term shin splints encompass the most common presentation under the umbrella: medial tibial stress syndrome (MTSS). […] While the pathophysiology is poorly understood and frequently debated, current evidence suggests that MTSS is associated with fascial traction, overloading of the tibia, or a combination of the two. […] Excessive bone loading due to repeated bending of the tibia is believed to contribute to MTSS. […] If the tibia undergoes excessive load, a stress reaction occurs. […] This was also noted by Magnusson et al., who observed reduced bone mineral density in patients with MTSS compared to healthy controls, where the bone density returned to normal as the MTSS symptoms subsided. […] Muscle fibre traction via Sharpey’s fibres is shown to result in tibial periostitis at the MTSS injury site. […] Evidence suggests shin splints (MTSS) is either bone loading, some form of fasciopathy, or a combination of both.
#30 Best Shin Splint Treatment Sheboygan Creekside Chiropractic
https://creeksidechiro.com/shin-splints
Shin splints are believed to result from repetitive contraction of the deep ankle flexors during running, jumping, or impact loading (5). Repetitive traction on the medial tibial crest results in myofascial strain, inflammation, and bony stress reaction (6-13). […] Early theories focused on myofascial strain, but current evidence suggests that a bony stress reaction (called periostitis) is the most likely cause of MTSS (14-20). […] Newer research suggests that traction periostitis may be an inflammatory precursor to tibial stress fracture (21). The stress of exercise can weaken bone. Healthy bone responds to this stress by remodeling itself more densely. Stress reactions occur when the normal adaptive remodeling response is unable to keep pace with the loads of excessive training: high demands with inadequate recovery times (22,23). Prolonged insult may lead to tibial stress fracture (24,25).
#31 Shin splints: Symptoms, causes, and treatments
https://www.medicalnewstoday.com/articles/242169
Shin splints are characterized by pain in the lower leg, on the front, outside, or inside of the leg. […] Despite the fact that shin splints are very common, the exact reason why they occur is still not known; however, many of the main risk factors are now well documented. […] The exact mechanisms behind shin splints are not fully understood but are thought to involve a variety of different issues. […] The causes, however, are relatively clear; shin splints are most commonly associated with repetitive activities that cause stress on the shinbone and the connective tissue that attaches the muscle to the bone. […] It is thought that these stresses involve inflammation of the connective tissue that coats the tibia (called the periosteum); this is called periostitis. […] Many experts believe that a range of tibial injuries might account for shin splints; some of these could include: Tendinopathy: a disease of the tendon.
#32 Shin Splints – Garland, TX: North Star Foot & Ankle Associates
https://www.northstarfoot.com/contents/podiatrist-services/shin-splints-more
Shin splints are medically known as medial tibial stress syndrome, caused by a sudden increase in workout intensity that causes increased pressure to be applied to the muscles and connective tissues surrounding the tibia and fibula bones. […] This extra stress causes the tibia and its surrounding connective tissues that connect the tibia to the muscles of the lower leg to become inflamed. […] It can also cause minor tears and bruising that lead to the sharp pain associated with shin splints. […] These small injuries cause inflammation of the muscles, tendons, and ligaments that surround the tibia. […] Shin splints occur when these tissues become overworked due to too much activity or a lack of flexibility.
#33 Shin splints: Symptoms, causes, and treatments
https://www.medicalnewstoday.com/articles/242169
Muscle dysfunction: some muscles may also be involved in shin splints, including: tibialis posterior (inside of the ankle), tibialis anterior (running along the shin and top of the foot), soleus (lower calf). […] Foot and ankle overpronation is also thought to be a cause of shin splints. […] This abnormal movement causes muscles to fatigue quicker and may place additional stress on the shinbone. […] An imbalance in foot pressure with greater pressure on the medial side than on the lateral side was the primary risk factor.
#34 A review article of medial tibial stress syndrome – Journal of Musculoskeletal Surgery and Research
https://journalmsr.com/a-review-article-of-medial-tibial-stress-syndrome/
Medial tibial stress syndrome (MTSS), which also known as shin splints, is leg pain due to repetitive stresses. […] The exact cause and pathophysiology behind MTSS are still unclear; however, multiple risk factors have been discussed thoroughly in the literature. […] A mechanism of developing MTSS can be possibly explained by repetitive stress inducing microdamage higher than the repair threshold. […] It is also thought that MTSS can occur when individuals have increased bending forces on the tibia exceeding the opposing strength of leg muscles. […] MTSS has been linked to periostitis or repeated tibial bending and bowing. […] Multiple contributory factors to the periostitis are related to the training intensity and training surfaces. […] A relation between MTSS and the crural fascia of the deep posterior compartment has been suggested in the literature.
#35 Best Shin Splint Treatment Sheboygan Creekside Chiropractic
https://creeksidechiro.com/shin-splints
The leading mechanism of injury is repetitive eccentric contraction from running or jumping on hard surfaces (the landing portion of each step is eccentric) (26-28). Excessive or improper training is the leading factor for the development of shin splints (2,3,29-33). […] Foot hyperpronation is a significant risk factor for the development of shin splints, as a collapsing foot puts additional stress on the suspect tissues (4,10,12,14,28,36). […] Hip abductor weakness is a common culprit of many lower chain overuse injuries (86). Excessive external rotation of the hip is another known contributor (4,50).
#36 Shin splints: Symptoms, causes, and treatments
https://www.medicalnewstoday.com/articles/242169
Muscle dysfunction: some muscles may also be involved in shin splints, including: tibialis posterior (inside of the ankle), tibialis anterior (running along the shin and top of the foot), soleus (lower calf). […] Foot and ankle overpronation is also thought to be a cause of shin splints. […] This abnormal movement causes muscles to fatigue quicker and may place additional stress on the shinbone. […] An imbalance in foot pressure with greater pressure on the medial side than on the lateral side was the primary risk factor.
#37 What are Shin Splints? A Breakdown of This Common Sports Injury
https://www.hawaiipacifichealth.org/healthier-hawaii/live-healthy/what-are-shin-splints-a-breakdown-of-this-common-sports-injury/
Shin splints are a common injury athletes and non-athletes alike experience due to stress on the connective tissues muscles, tendons and bone tissue that surround the shinbone. […] This stress causes inflammation, which in turn causes pain that radiates up and down the front of the leg. […] Shin splints are medically known as medial tibial stress syndrome and typically are caused by overuse stress injury, meaning an overload that causes too much stress to the muscles. […] When this happens, the muscles begin to fail, not doing their job to absorb shock and support the bones and joints of the lower leg, which results in the bones carrying the load instead. […] If left untreated, shin splints and stress reaction can progress ultimately to stress fracture, which is when the bone can no longer handle the load being placed on it and it cracks.
#38 Shin Splints: Symptoms, Causes, Treatment, and Prevention
https://www.healthline.com/health/shin-splints
Shin splints is a cumulative stress disorder. Repeated pounding and stress on the bones, muscles, and joints of the lower legs prevents your body from being able to naturally repair and restore itself. […] The pain associated with shin splints results from excessive amounts of force on the shin bone and the tissues attaching the shin bone to the muscles surrounding it. […] The excessive force causes the muscles to swell and increases the pressure against the bone, leading to pain and inflammation. […] Shin splints can also result from stress reactions to bone fractures. The constant pounding can cause minute cracks in the bones of the leg. The body can repair the cracks if given time to rest. […] However, if the body doesn’t get time to rest, the tiny cracks can result in a complete fracture or a stress fracture.
#39 What are Shin Splints? A Breakdown of This Common Sports Injury
https://www.hawaiipacifichealth.org/healthier-hawaii/live-healthy/what-are-shin-splints-a-breakdown-of-this-common-sports-injury/
A fracture means broken bone, so a stress fracture is truly a type of broken bone. In the case of shin splints, a fracture is caused by an overload of stress from impact, such as running or jumping. […] Shin splints are caused by stress on the connective tissues muscles, tendons and bone tissue that surround the shinbone. This stress causes inflammation, which in turn causes pain up and down the front of the leg. […] Acknowledging that shin splints is the first stage in a possibly more serious and dangerous set of injuries is important. Early diagnosis and treatment can prevent stress fractures.
#40 What are Shin Splints? A Breakdown of This Common Sports Injury
https://www.hawaiipacifichealth.org/healthier-hawaii/live-healthy/what-are-shin-splints-a-breakdown-of-this-common-sports-injury/
A fracture means broken bone, so a stress fracture is truly a type of broken bone. In the case of shin splints, a fracture is caused by an overload of stress from impact, such as running or jumping. […] Shin splints are caused by stress on the connective tissues muscles, tendons and bone tissue that surround the shinbone. This stress causes inflammation, which in turn causes pain up and down the front of the leg. […] Acknowledging that shin splints is the first stage in a possibly more serious and dangerous set of injuries is important. Early diagnosis and treatment can prevent stress fractures.
#41 Shin splints | Better Health Channel
https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/shin-splints
Shin splints is the common term for medial tibial stress syndrome. It refers to pain felt anywhere along the shinbone from knee to ankle. People who play sports that involve a lot of running are particularly prone to this injury. One of the most common reasons for this pain is overuse, such as trying to exercise beyond your current level of fitness. The exact cause of the pain is unknown. It may be caused by the tendons and muscles that run the length of the shin pulling on the bone and creating inflammation. More recent research suggests it is more likely a stress reaction from the bone. […] Shin splints can be caused by a number of factors working in combination. These factors include: Overuse exercising too hard or trying to exercise beyond your current level of fitness can strain muscles, tendons, bones and joints. Overuse is one of the most common causes of shin splints. […] Pain felt on the inner side of the shinbone is called medial shin splints, while the term anterior shin splints refers to pain felt on the outer side. While medial shin splints are more common, pain may be felt on both sides of the shinbone in severe cases.
#42
https://www.orthobullets.com/knee-and-sports/3108/tibial-stress-syndrome-shin-splints
Tibial stress syndrome (also known as shin splints) is an overuse injury or repetitive-load injury of the shin area that leads to persistent dull anterior leg pain. […] Diagnosis is made clinically with tenderness along the posteromedial distal tibia made worse with plantarflexion. […] Etiology: Pathophysiology caused by a traction periostitis. […] Anterolateral traction periostitis of tibialis anterior on tibia and interosseous membrane. […] Posteromedial traction periostitis of tibialis posterior and soleus.
#43 Shin Splints – Injuries and Poisoning – Merck Manual Consumer Version
https://www.merckmanuals.com/home/injuries-and-poisoning/sports-injuries/shin-splints
Repetitive impact forces in the legs during running or vigorous walking (such as hiking) can overload the muscles and tendons in the legs and cause shin pain. Excessive outward rotation of the foot on the leg (supination) may also cause or exacerbate shin splints. […] Shin splints may develop in the muscles in the front and outer parts of the shin (anterolateral shin splints) or in the muscles in the back and inner parts (posteromedial shin splints). Pain is felt in different areas, depending on which muscles are affected.
#44 Aetiology and mechanisms of injury in medial tibial stress syndrome: Current and future developments
https://pmc.ncbi.nlm.nih.gov/articles/PMC4573502/
The apparent contrary findings in some of these previous studies, where the injury has been attributed to different muscles or other tissues, may be because there are different types of MTSS, each with their own specific aetiology. […] Despite these different theories, clinical and research studies on the cause of MTSS, the fact that the detailed structural cause is still unknown highlights the need for prospective longitudinal investigations. […] It can be argued that MTSS and TSFs are on a continuum as MTSS is most commonly found in the same location as TSFs, at the junction of the mid and distal thirds of the tibia, but this is not always the case as MTSS is also observed in other locations in the tibia, suggesting it is a separate injury. […] While it is clear that MTSS and TSFs have commonality with regards to the development of microcracks in the cortical bone, changes in BMD and alteration to the cortical bone geometry, it is yet to be proven if they are one injury or two separate entities.
#45 Aetiology and mechanisms of injury in medial tibial stress syndrome: Current and future developments
https://pmc.ncbi.nlm.nih.gov/articles/PMC4573502/
The apparent contrary findings in some of these previous studies, where the injury has been attributed to different muscles or other tissues, may be because there are different types of MTSS, each with their own specific aetiology. […] Despite these different theories, clinical and research studies on the cause of MTSS, the fact that the detailed structural cause is still unknown highlights the need for prospective longitudinal investigations. […] It can be argued that MTSS and TSFs are on a continuum as MTSS is most commonly found in the same location as TSFs, at the junction of the mid and distal thirds of the tibia, but this is not always the case as MTSS is also observed in other locations in the tibia, suggesting it is a separate injury. […] While it is clear that MTSS and TSFs have commonality with regards to the development of microcracks in the cortical bone, changes in BMD and alteration to the cortical bone geometry, it is yet to be proven if they are one injury or two separate entities.
#46 Symptoms and Shin Splints Treatments | Orthopedic Specialists of Seattle
https://orthopedicspecialistsofseattle.com/healthcare/injuries/shin-splints-treat/
MTSS is an overuse injury that is most commonly caused by excessive pronation and repetitive impact activities. […] In cases of excessive pronation however, the arch of the foot flattens and inward rotation of the foot is exaggerated. This increases stress on the muscles, tendons, and ligaments of the foot and lower leg, causing lower leg pain. […] With repetitive high impact activities such as running, the frequent strain will often cause inflammation and swelling about the lower leg, exacerbating the pain. […] While MTSS is a relatively benign condition, lower leg pain, swelling, numbness, and weakness can also indicate more serious conditions such as: stress fracture, exertional compartment syndrome, popliteal artery entrapment syndrome, various nerve entrapment syndromes, or gastrocnemius-soleus muscle strain. These can often be confused with MTSS given the similarities in their symptoms and cannot be identified without advanced imaging studies such as x-ray, CT, MRI, MRA, or Doppler ultrasound.
#47 Symptoms and Shin Splints Treatments | Orthopedic Specialists of Seattle
https://orthopedicspecialistsofseattle.com/healthcare/injuries/shin-splints-treat/
MTSS is an overuse injury that is most commonly caused by excessive pronation and repetitive impact activities. […] In cases of excessive pronation however, the arch of the foot flattens and inward rotation of the foot is exaggerated. This increases stress on the muscles, tendons, and ligaments of the foot and lower leg, causing lower leg pain. […] With repetitive high impact activities such as running, the frequent strain will often cause inflammation and swelling about the lower leg, exacerbating the pain. […] While MTSS is a relatively benign condition, lower leg pain, swelling, numbness, and weakness can also indicate more serious conditions such as: stress fracture, exertional compartment syndrome, popliteal artery entrapment syndrome, various nerve entrapment syndromes, or gastrocnemius-soleus muscle strain. These can often be confused with MTSS given the similarities in their symptoms and cannot be identified without advanced imaging studies such as x-ray, CT, MRI, MRA, or Doppler ultrasound.
#48 Shin Splints â Medial Tibial Stress Syndrome
https://www.coreconceptsphysio.sg/article/shin-splints-medial-tibial-stress-syndrome-whats-your-understanding-of-it/
Approximately 10-20% of all runners will experience shin splints or medial tibial stress syndrome (MTSS) once in their career. […] While MTSS accounts for nearly 60% of all overuse injuries seen in the leg, the real cause is not well known and is often multi-factorial including biomechanical abnormalities and training errors. […] It is thought by many clinicians that a periostitis is the underlying mechanism of MTSS. New evidence implicates that other factors causing a tibial stress injury are involved such as tendinopathy, periosteal remodelling and stress reaction of the tibia. […] These numerous tibial stress injuries appear to be caused by alterations in tibial loading, as chronic, repetitive loads cause abnormal strain and bending of the tibia. […] Others believe that morphologic bone changes as a result of continues bonestress are the basis for shin splints and attribute the pain to stress microfractures.
#49 Shin Splints â Medial Tibial Stress Syndrome
https://www.coreconceptsphysio.sg/article/shin-splints-medial-tibial-stress-syndrome-whats-your-understanding-of-it/
In summary, MTSS is an overuse injury or repetitive-stress injury of the shin area where various stress reactions of the tibia and the surrounding musculature occur and the body is unable to heal properly in response to repetitive muscle contractions and tibial strain. […] Shin splints or MTSS is a complex problem where the cause remains unknown and expert opinions are not consistent. […] Although the singular cause for MTSS is not described, Hubbard, Carpenter and Cordova (2009) made a distinction between intrinsic and extrinsic mechanisms that could have an impact on the development of shin splints. […] Intrinsic mechanisms are: Altered biomechanics and/or alignment, Decreased muscle strength, Decreased flexibility, Low bone mineral density, Hormonal change. […] External mechanisms are: Type of surface the activity occurs (asphalt, grass etc.), Running composition and style (uphill, downhill), Shock absorption, Shoe wear.
#50 Shin splints – Wikipedia
https://en.wikipedia.org/wiki/Shin_splints
Shin splints can be attributed to the overloading of the lower leg due to biomechanical irregularities resulting in an increase in stress exerted on the tibia. […] A sudden increase in intensity or frequency in activity level fatigues muscles too quickly to help shock absorption properly, forcing the tibia to absorb most of the impact. […] The pain associated with shin splints is caused from a disruption of Sharpey’s fibres that connect the medial soleus fascia through the periosteum of the tibia where it inserts into the bone. […] With repetitive stress, the impact forces eccentrically fatigue the soleus and create repeated tibial bending or bowing, contributing to shin splints. […] Improper footwear, including worn-out shoes, can also contribute to shin splints.
#51 Shin Splints Treatment & Diagnosis | MD West ONE
https://mdwestone.com/shin-splints/
Shin splints occur from overuse of the tibia. Excessive force due to repetitive activity on the shin bone and surrounding tissues causes the pain felt from shin splints. […] Constant pounding causes small cracks to develop in the leg bones. Usually, a body will be able to repair itself naturally. Consistent overuse causes the body to not be able to recover between bouts of strenuous activity. When the body is not able to recover, then these minute cracks can turn into stress fractures or complete fractures. […] Although any repetitive activity can cause shin splints to develop, some physical attributes put you at a higher risk of developing shin splints: Having abnormal foot construction, Running or working out on hard surfaces, Not wearing proper shoes or wearing shoes that have lost their ability to cushion your foot. […] Having previous conditions like bone fractures can increase your risk of developing shin splints.
#52 Shin Splints â Medial Tibial Stress Syndrome
https://www.coreconceptsphysio.sg/article/shin-splints-medial-tibial-stress-syndrome-whats-your-understanding-of-it/
Many of these risk and contributing factors can be addressed during therapy but unless there is a better understanding about the true cause of MTSS, attempting to control all the risk factors in our athletes is nearly impossible. […] So far research failed to show any effective prevention programs but experts seem to agree on 2 etiological components. They include involvement of the soleus muscle in MTSS and insufficient bone-remodelling capabilities to compensate for persistent insults to the tibia.
#53 Aetiology and mechanisms of injury in medial tibial stress syndrome: Current and future developments
https://pmc.ncbi.nlm.nih.gov/articles/PMC4573502/
The apparent contrary findings in some of these previous studies, where the injury has been attributed to different muscles or other tissues, may be because there are different types of MTSS, each with their own specific aetiology. […] Despite these different theories, clinical and research studies on the cause of MTSS, the fact that the detailed structural cause is still unknown highlights the need for prospective longitudinal investigations. […] It can be argued that MTSS and TSFs are on a continuum as MTSS is most commonly found in the same location as TSFs, at the junction of the mid and distal thirds of the tibia, but this is not always the case as MTSS is also observed in other locations in the tibia, suggesting it is a separate injury. […] While it is clear that MTSS and TSFs have commonality with regards to the development of microcracks in the cortical bone, changes in BMD and alteration to the cortical bone geometry, it is yet to be proven if they are one injury or two separate entities.
#54 Diagnosis of Shin Splint: A Case Report | Published in SurgiColl
https://surgicoll.scholasticahq.com/article/117458-diagnosis-of-shin-splint-a-case-report
It seems reasonable that fatigued muscles cannot absorb the shock, resulting in the transmission of the ground reaction force to the bone-muscle interface. […] Despite the many papers published about shin splints and MTSS, most have looked at the risk factors and contributing causes rather than the treatment. […] Medial Tibial Stress Syndrome or Shin Splint should be considered a differential diagnosis. […] This suggests that not every patient with this condition requires treatment. […] The substantial variation in the treatment options indicates that physicians have undue influence on the treatment choice. […] Future research should address the ability of decision aids to decrease surgeon-to-surgeon variations in treatment and ensure that the patients values and preferences have a central role in decision-making.