Skręcenie stawu
Etiologia i przyczyny

Skręcenie stawu to uszkodzenie wiązadeł spowodowane ich nadmiernym rozciągnięciem lub naderwaniem, przekraczającym fizjologiczny zakres elastyczności (około 4%). Najczęściej dotyczy stawu skokowego (90% skręceń bocznych), kolanowego, nadgarstkowego oraz kciuka. Mechanizmy urazu obejmują nagłe skręcenia, inwersję lub ewersję stopy, bezpośrednie uderzenia oraz przeciążenia powtarzalnym ruchem. Skręcenia klasyfikuje się w trzystopniowej skali: I – mikrouszkodzenia włókien, II – częściowe naderwanie, III – całkowite zerwanie wiązadła, z towarzyszącą niestabilnością, obrzękiem i ograniczeniem funkcji. Szczególną uwagę wymaga wysokie skręcenie stawu skokowego (syndesmotyczne), związane z uszkodzeniem więzadeł łączących kość piszczelową i strzałkową, często w wyniku rotacji zewnętrznej i zgięcia grzbietowego stopy, które może współistnieć ze złamaniem Maisonneuve’a.

Etiologia skręcenia stawu

Skręcenie stawu to kontuzja, która występuje, gdy wiązadła otaczające staw ulegają uszkodzeniu – zostają nadmiernie rozciągnięte lub naderwane. Wiązadła to sprężyste struktury łącznotkankowe, które łączą kości w stawie, zapewniając mu stabilność. Podczas skręcenia wiązadło jest zmuszone do rozciągnięcia poza swoją normalną zdolność elastyczną, co prowadzi do jego uszkodzenia.12

Mechanizm powstawania skręcenia

Skręcenia stawu występują, gdy staw jest zmuszony do ruchu wykraczającego poza jego naturalny zakres. Wiązadła normalnie rozciągają się w granicach swojej elastyczności (około 4%), a następnie wracają do pierwotnej pozycji. Jednak gdy wiązadło jest zmuszone do rozciągnięcia poza jego normalny zakres, dochodzi do naderwania lub całkowitego zerwania włókien elastycznych.123

Nagły skręt lub obrót stawu (zwłaszcza stawu skokowego) często powoduje, że wiązadła ulegają rozciągnięciu poza ich fizjologiczny zakres ruchomości. Kiedy stopa jest nieprawidłowo ustawiona na podłożu, a siły przekraczają zdolności elastyczne wiązadeł, dochodzi do ich uszkodzenia. Jeśli siła działająca na staw jest zbyt duża, wiązadła mogą ulec częściowemu lub całkowitemu zerwaniu.12

Najczęstsze przyczyny skręcenia stawu

Skręcenia stawu mogą wystąpić w różnych okolicznościach. Do najczęstszych przyczyn należą:12

  • Urazy sportowe – zwłaszcza w sportach wymagających nagłych zmian kierunku, skoków lub lądowań (koszykówka, piłka nożna, tenis)12
  • Upadki – szczególnie gdy staw jest skręcony podczas upadku12
  • Nieodpowiednie lądowanie po skoku1
  • Chodzenie lub bieganie po nierównych powierzchniach12
  • Nagła zmiana kierunku podczas aktywności fizycznej12
  • Poślizgnięcie się i gwałtowne podparcie1
  • Nadepnięcie na stopę innej osoby podczas aktywności sportowej12
  • Bezpośredni uraz lub uderzenie w staw12
  • Urazy przeciążeniowe związane z powtarzalnym ruchem12

Czynniki ryzyka skręcenia stawu

Istnieje szereg czynników, które mogą zwiększać ryzyko wystąpienia skręcenia stawu:12

  • Wcześniejsze skręcenia – przebyte kontuzje są najważniejszym czynnikiem ryzyka powtórnych skręceń12
  • Nieodpowiednie obuwie – niewłaściwe lub zużyte obuwie zwiększa ryzyko urazów12
  • Osłabione mięśnie – zwłaszcza te odpowiedzialne za stabilizację stawów12
  • Nieodpowiednia rozgrzewka przed aktywnością fizyczną12
  • Zmęczenie mięśniowe – osłabienie mięśni wywołane długotrwałym wysiłkiem12
  • Nadwaga lub otyłość – dodatkowe obciążenie stawów12
  • Wrodzona niestabilność lub słabość więzadeł12
  • Uwarunkowania anatomiczne – np. stopa wydrążona lub koślawe ustawienie pięty (hindfoot varus)123
  • Upośledzona propriocepcjazaburzenia czucia głębokiego wpływające na stabilność stawu1
  • Predyspozycje genetyczne do urazów więzadeł12

Najczęstsze lokalizacje skręceń

Chociaż skręcenia mogą dotyczyć każdego stawu, niektóre stawy są szczególnie narażone na ten rodzaj urazu:12

  • Staw skokowy – najczęściej skręcany staw, zwłaszcza podczas aktywności sportowej12
  • Staw kolanowy – szczególnie podatny na urazy podczas nagłej zmiany kierunku12
  • Staw nadgarstkowy – często ulega skręceniu przy upadkach na wyciągniętą rękę12
  • Staw kciuka – narażony na skręcenia przy uderzeniach1
  • Stawy stopy i palców – mogą ulec skręceniu przy uderzeniu lub nadmiernym zgięciu1
  • Odcinek lędźwiowy kręgosłupa – narażony przy niewłaściwym podnoszeniu ciężarów1

Mechanizmy skręcenia poszczególnych stawów

Skręcenie stawu skokowego

W przypadku stawu skokowego wyróżnia się kilka typów skręceń, w zależności od mechanizmu urazu:12

  • Skręcenie boczne (lateralne) – najczęstszy typ (około 90% wszystkich skręceń stawu skokowego), występuje przy nadmiernej inwersji stopy (skręcenie do wewnątrz), powodując uszkodzenie więzadeł bocznych: więzadła skokowo-strzałkowego przedniego (ATFL) i więzadła piętowo-strzałkowego (CFL)12
  • Skręcenie przyśrodkowe (medialne) – rzadziej występujące, związane z ewersją stopy (skręcenie na zewnątrz), prowadzące do uszkodzenia więzadła deltoidalnego po wewnętrznej stronie stawu skokowego12
  • Skręcenie wysokie (wysokie skręcenie stawu skokowego, syndesmotyczne) – dotyczy więzadeł łączących kość piszczelową i strzałkową, występuje przy rotacji zewnętrznej, gdy stopa jest zgięta grzbietowo12

Skręcenie stawu kolanowego

Skręcenia stawu kolanowego najczęściej powstają w wyniku:1

  • Bezpośredniego uderzenia w kolano z zewnątrz
  • Nagłej zmiany kierunku z zablokowaną stopą
  • Nadmiernego wyprostowania stawu kolanowego (przeprostu)
  • Rotacji kolana przy ustabilizowanej stopie1

Skręcenie stawu nadgarstkowego

Skręcenia nadgarstka najczęściej powstają w wyniku:12

  • Upadku na wyciągniętą rękę
  • Bezpośredniego uderzenia w nadgarstek
  • Nagłego ruchu skrętnego lub przeprostu nadgarstka

Klasyfikacja skręceń według stopnia ciężkości

Skręcenia klasyfikowane są według trzystopniowej skali, w zależności od stopnia uszkodzenia wiązadeł:123

  • Stopień I (łagodne skręcenie) – niewielkie rozciągnięcie i mikrouszkodzenia włókien wiązadła. Występuje minimalne obrzęknięcie i bolesność, bez niestabilności stawu. Pełna funkcja stawu jest zachowana lub lekko ograniczona.123
  • Stopień II (umiarkowane skręcenie) – częściowe naderwanie wiązadła z wyraźnym obrzękiem i bolesnością. Pojawia się umiarkowana niestabilność stawu przy określonych ruchach oraz ograniczenie funkcji.123
  • Stopień III (ciężkie skręcenie) – całkowite zerwanie wiązadła prowadzące do znacznej niestabilności stawu. Występuje silny ból, obrzęk i zasinienie oraz znaczne upośledzenie funkcji stawu.123

Powikłania i następstwa nieleczonych skręceń

Nieleczone lub niewłaściwie leczone skręcenia mogą prowadzić do różnych powikłań:12

  • Przewlekła niestabilność stawu – zwiększająca ryzyko nawracających skręceń123
  • Przewlekły ból stawu – utrzymujący się długo po urazie12
  • Ograniczenie ruchomości stawu – utrwalone przykurcze1
  • Zwiększone ryzyko rozwoju zmian zwyrodnieniowych (artrozy) stawu1
  • Osłabienie mięśni stabilizujących staw1
  • Zaburzenia propriocepcji – upośledzające kontrolę położenia stawu1
  • Zwiększone ryzyko upadków, szczególnie u osób starszych1

Szczególnie niepokojące jest to, że według różnych badań nawet 25-40% pacjentów z przebytym skręceniem stawu skokowego może doświadczać nawracającej niestabilności, a do 20% rozwija przewlekłą niestabilność stawu.12

Różnicowanie między skręceniem a naciągnięciem mięśni

Istotne jest różnicowanie między skręceniem stawu (uszkodzeniem wiązadeł) a naciągnięciem (uszkodzeniem mięśni lub ścięgien):123

  • Skręcenie (sprain) – dotyczy wiązadeł, które łączą kości w stawie. Powstaje przez nadmierne rozciągnięcie lub naderwanie wiązadeł, najczęściej w wyniku nagłego skręcenia stawu poza jego normalny zakres ruchomości.123
  • Naciągnięcie (strain) – dotyczy mięśni lub ścięgien (które łączą mięśnie z kośćmi). Powstaje w wyniku nadmiernego rozciągnięcia lub skurczu mięśnia, często podczas aktywności wymagających powtarzalnych ruchów, podnoszenia ciężkich przedmiotów lub nagłych ruchów.123

Oba typy urazów mogą mieć podobne objawy: ból, obrzęk i ograniczenie ruchomości, jednak lokalizacja i charakter uszkodzenia tkankowego są odmienne.1

Szczególne formy skręceń stawów

Wysokie skręcenie stawu skokowego

Wysokie skręcenie stawu skokowego (syndesmotyczne) dotyczy więzadeł łączących kość piszczelową i strzałkową powyżej stawu skokowego (tzw. więzadła syndesmotyczne). Jest to mniej powszechny, ale zazwyczaj poważniejszy uraz niż typowe skręcenie boczne stawu skokowego.12

Wysokie skręcenie powstaje najczęściej w wyniku urazu rotacyjnego, gdy stopa jest zgięta grzbietowo i obrócona na zewnątrz. Ten typ urazu jest częsty w sportach kontaktowych. W niektórych przypadkach może towarzyszyć mu złamanie kości strzałkowej na wysokim poziomie (złamanie Maisonneuve’a).1

Skręcenia z wyłamaniem/lub awulsją

W niektórych przypadkach, gdy dochodzi do zerwania wiązadła w miejscu jego przyczepu do kości, może dojść do oderwania fragmentu kostnego. Ten typ urazu, zwany awulsją, jest widoczny na zdjęciu rentgenowskim i może wymagać innego podejścia terapeutycznego niż typowe skręcenie.1

Epidemiologia skręceń

Skręcenia stawów są jednymi z najczęstszych urazów układu mięśniowo-szkieletowego:12

  • W samych Stanach Zjednoczonych i Wielkiej Brytanii ponad 2 miliony skręceń stawu skokowego jest leczonych na oddziałach ratunkowych rocznie1
  • Dziennie około 25 000 osób doświadcza skręcenia stawu skokowego12
  • Skręcenia stawu skokowego stanowią najczęstszą przyczynę nieuczestniczenia w zajęciach sportowych1
  • Mężczyźni w wieku 15-24 lat mają wyższy wskaźnik skręceń stawu skokowego, natomiast u kobiet powyżej 30 roku życia wskaźnik ten jest wyższy niż u mężczyzn w tym samym wieku1
  • W przypadku skręceń przyśrodkowych stawu skokowego, mężczyźni są około trzy razy bardziej narażeni niż kobiety, często ze względu na większy udział w sportach wymagających nagłych zmian kierunku1
  • Osoby, które doznały skręcenia stawu skokowego, są 3,5 raza bardziej narażone na ponowne skręcenie niż osoby bez takiego urazu w przeszłości1

Zapobieganie skręceniom stawów

Istnieje kilka sprawdzonych metod zapobiegania skręceniom stawów:12

  • Odpowiednie przygotowanie fizyczne – wzmacnianie mięśni stabilizujących stawy1
  • Prawidłowa rozgrzewka przed aktywnością fizyczną1
  • Stosowanie odpowiedniego obuwia dostosowanego do rodzaju aktywności12
  • Stabilizacja stawów przy pomocy ortez lub tapingu – szczególnie u osób z przebytymi skręceniami1
  • Unikanie zbyt szybkiego zwiększania intensywności treningu1
  • Właściwa rehabilitacja po przebytych urazach12
  • Poprawa propriocepcji (czucia głębokiego) – ćwiczenia na równowagę i koordynację1
  • Unikanie aktywności fizycznej przy znacznym zmęczeniu mięśniowym1

Ważne jest, aby po skręceniu stawy były odpowiednio leczone i rehabilitowane. Powrót do intensywnej aktywności fizycznej powinien nastąpić dopiero po całkowitym wyleczeniu urazu, co może zająć nawet do 8 tygodni w przypadku poważniejszych skręceń.1

Podsumowanie

Skręcenie stawu to powszechny uraz, który występuje, gdy wiązadła otaczające staw zostają nadmiernie rozciągnięte lub naderwane w wyniku ruchu wykraczającego poza normalny zakres ruchomości stawu. Najczęściej dochodzi do niego podczas aktywności sportowej, upadków lub nagłych zmian kierunku ruchu.123

Czynniki ryzyka obejmują wcześniejsze urazy, nieodpowiednie obuwie, słabość mięśniową oraz predyspozycje anatomiczne. Skręcenia klasyfikuje się według trzystopniowej skali ciężkości, od łagodnych naderwań do całkowitych zerwań wiązadeł.123

Nieleczone skręcenia mogą prowadzić do przewlekłej niestabilności stawu, nawracających urazów i zmian zwyrodnieniowych. Profilaktyka obejmuje wzmacnianie mięśni stabilizujących, odpowiednią rozgrzewkę oraz stosowanie stabilizatorów u osób z ryzykiem nawrotowych skręceń.123

Właściwe rozpoznanie mechanizmu powstania skręcenia pozwala na wdrożenie odpowiedniego leczenia i rehabilitacji, co ma kluczowe znaczenie dla przywrócenia pełnej funkcji stawu i zapobiegania powikłaniom długoterminowym.12

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  1. 14.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

  • #1 Sprains: Types, Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/sprains
    Sprains happen when ligaments around one of your joints are damaged. […] The most common causes include: Sports injuries, Falls, Slipping and catching yourself suddenly, Rolling an ankle or twisting a knee while walking, running or jumping, Repetitive strain injuries (overusing a joint or performing a repetitive motion for work, a sport or a hobby). […] Sprains happen when a ligament is torn or damaged, usually when one of your joints moves further than it should.
  • #1 Quick Facts:Overview of Sprains – Merck Manual Consumer Version
    https://www.merckmanuals.com/home/quick-facts-injuries-and-poisoning/sprains-and-other-soft-tissue-injuries/overview-of-sprains
    A sprain is a tear in or painful stretch of one of your ligaments. […] A sprain is mild, moderate, or severe based on whether your ligament is stretched, partly torn, or fully torn. […] You get a sprain if a joint is twisted, stretched, or bent too far, such as from: A sports injury, Falling. […] If a ligament is completely torn, the bones in the joint may separate. […] Each joint has several ligaments. Sometimes more than one is sprained.
  • #1 Ankle Sprain | UConn Musculoskeletal Institute
    https://health.uconn.edu/msi/clinical-services/orthopaedic-surgery/foot-ankle-and-podiatry/ankle-sprain/
    If there is a severe in-turning or out-turning of the foot relative to the ankle, the forces cause the ligaments to stretch beyond their normal length. If the force is too strong, the ligaments can tear. […] The amount of force determines the grade of the sprain. A mild sprain is a Grade 1. A moderate sprain is a Grade 2. A severe strain is a Grade 3. […] If an ankle sprain is not recognized, and is not treated with the necessary attention and care, chronic problems of pain and instability may result. […] The best way to prevent ankle sprains is to maintain good strength, muscle balance and flexibility. […] If you have sprained your ankle in the past, you may continue to sprain it if the ligaments did not have time to completely heal. If the sprain happens frequently and pain continues for more than four weeks to six weeks, you may have a chronic ankle sprain.
  • #1
  • #1 Sprained ankle – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/sprained-ankle/symptoms-causes/syc-20353225
    A sprained ankle is the stretching or tearing of ankle ligaments, which support the joint by connecting bones to each other. […] A sprain occurs when your ankle is forced to move out of its normal position, which can cause one or more of the ankle’s ligaments to stretch, partially tear or tear completely. […] Causes of a sprained ankle might include: A fall that causes your ankle to twist, Landing awkwardly on your foot after jumping or pivoting, Walking or exercising on an uneven surface, Another person stepping or landing on your foot during a sports activity.
  • #1 Sprained Ankle: Symptoms, Types, Treatment & Recovery
    https://my.clevelandclinic.org/health/diseases/22048-sprained-ankle
    A sprained ankle is a common injury that occurs when the ankle ligaments are torn or stretched too far, often after a fall, or if you roll or twist your ankle. […] A sprained ankle is a common injury when the tissue that connects your ankle bones and supports your ankle (ligaments) is torn or stretched beyond its limits, often after a fall, ankle roll or twist. […] A sprained ankle is when the ligaments in your ankle are torn. […] Severe sprains and fractures have similar symptoms (pain, swelling, bruising, tenderness) and are both caused by twisting or rotating your ankle, tripping or falling, or trauma to your ankle. […] Rolling or twisting the ankle causes ankle sprains. The most common ankle sprains are the result of: Falling or tripping on uneven surfaces, Landing incorrectly after a jump, Losing balance, Participating in sports that involve rolling or twisting your foot (basketball, football, soccer, tennis).
  • #1 Atlanta GA Sprains Causes, Prevention, Treatment | Decatur Pediatric Clinic | Brookhaven
    https://intownpediatrics.com/sprains/
    Sprains are one of the most common injuries in children, particularly those who are active in sports or physical play. A sprain occurs when the ligaments tough bands of tissue that connect bones at a joint are stretched or torn due to a sudden movement or impact. […] Some of the primary causes of sprains in children include: […] Children who suddenly change direction while running or playing are at risk of twisting their ankle or knee, leading to a sprain. […] Falls, whether from playing sports or slipping on a wet surface, are a common cause of wrist or ankle sprains. […] Sports like football, basketball, and soccer increase the likelihood of sprains due to physical contact with other players and the rapid movements required. […] Repeated stress on a joint, such as in gymnastics or running, can weaken ligaments over time, increasing the risk of a sprain during regular activities. […] According to the National Institutes of Health (NIH), ankle sprains are among the most common injuries in children, especially those aged 10 to 19. These injuries can occur during organized sports, physical activities, or even simple outdoor play.
  • #1 Sprains and Strains Causes, Symptoms, and Treatments
    https://www.upmc.com/services/orthopaedics/conditions/sprains-strains
    Doctors define a sprain as a condition where one or more of the ligaments in your joint are damaged or torn. Ligaments connect the bones to your joints. When damaged, your joint may become unstable, and you also may experience pain and inflammation. […] Sprains often happen when you twist, turn, or stretch a joint beyond its normal range of motion. This can occur during activities like running, jumping, or playing sports, where you might land awkwardly or change direction suddenly. […] A strain is a condition where you stretch or tear a muscle or tendon that connects to the bones in your joint. These muscles and tendons play a crucial role in allowing you to move your body and control movement. When damaged, you may have limitations in mobility and rotation and experience pain. […] Strains often happen when a muscle or tendon gets stretched too far or contracts too strongly. This can occur during activities that require repetitive movements, lifting heavy objects, or sudden movements.
  • #1
    https://www.parkwayeast.com.sg/conditions-diseases/sprains/symptoms-causes
    A sprain is a stretch, twist or tear in a ligament. […] You may experience a sprain when your joint is severely stressed. This can happen when: […] A severe sprain may lead to a fracture or dislocated joint. […] Treat a sprain promptly and allow it to heal before resuming physical activity involving the affected joint. This will prevent chronic pain or chronic joint instability. […] Ankle sprain causes include falling and twisting your ankle, improper landing from a jump, and walking or exercising on bumpy ground. […] Back sprain causes include improper lifting and curving the lower back excessively. […] Knee sprain causes include direct impact to the knee, such as during an accident, and rotating with your knee (e.g. when you play sports). […] Wrist sprain causes include falling and landing on your hand. […] Thumb sprain causes include hitting your thumb against a hard surface. […] Toe sprain causes include trauma, such as hitting your toe on a piece of furniture, and hyperextension beyond your toe’s natural range of movement.
  • #1 Sprains and Strains Causes, Symptoms, and Treatments
    https://www.upmc.com/services/orthopaedics/conditions/sprains-strains
    A sprain or a strain may happen from: […] Although sprains and strains are common in athletes, they can happen to anyone who overuses or puts too much stress on their joints and muscles. […] Many factors may put you at risk for a sprain or strain, including: […] Sprains and strains can lead to complications if not treated or if they’re severe. […] Some common complications include: […] It’s essential to seek medical attention for sprains and strains, especially if they’re severe or if symptoms persist. Proper treatment, rehabilitation, and preventive measures can help reduce the risk of complications and promote full recovery.
  • #1 Sprains and Strains Meaning, Causes, First Aid, Treatment
    https://www.medicinenet.com/sprained_ankle/article.htm
    A sprain is an injury to a ligament. A strain is an injury to a muscle or tendon tissue. […] The grading system for sprain injury is similar to that of strains. Grade 1 sprains occur when fibers of the ligament are stretched but not torn. Grade 2 sprains are injuries where the ligament is partially torn. Grade 3 sprains occur when the ligament is completely torn or ruptured. […] The severity of the injury depends upon the amount of tissue that is damaged. The muscle fiber may be just stretched, partially torn, or completely torn apart. […] A previous sprain or strain is a risk factor for another future injury to that particular area. Being certain that an injured body part is completely healed before stressing it again is essential to minimize that risk.
  • #1 Ankle Sprains and Strains | Orthopedics | Mercy Health
    https://www.mercy.com/health-care-services/orthopedics-sports-medicine-spine/specialties/foot-ankle/conditions/ankle-sprains-strains
    Ankle sprains and strains are common injuries for all ages. A sprain is caused by stretching or tearing ligaments while a strain is caused by stretching or tearing a muscle or tendon. […] The most common causes of a sprain or strain are blows or falls affecting the ankle. Other causes of ankle strains or sprains include: Fast and awkward side movements these movements occur when your foot is planted firmly on the ground, and your ankle turns out while your foot turns in causing an ankle strain or sprain. Sprains and strains often occur in sporting activities that involve changing foot position or direction quickly such as soccer, running, football and basketball. Inappropriate footwear can cause an ankle sprain. […] Risk factors for ankle sprains or strains include: Participating in sports or exercise without proper warm ups can be a risk factor for an ankle sprain or strain because the muscles, ligaments, and tendons are tighter when they are not warmed up. Obesity or carrying excess weight can put an individual at a higher risk of an ankle sprain or strain due to greater stress on the ankle while walking, running or participating in sports. Muscle fatigue can also be a risk factor for an ankle sprain or strain long distance runners (marathoners or ultramarathoners) are at high risk for an ankle strain or sprain due to the amount of continuous stress they are putting on the joints.
  • #1
    https://www.footcaremd.org/conditions-treatments/ankle/ankle-sprain
    An ankle sprain refers to tearing of the ligaments of the ankle. […] As noted above, ankle sprain injuries occur when the ankle is twisted underneath the leg, called inversion. Risk factors are activities, such as jumping/cutting sports like basketball and soccer, in which an athlete can come down on and turn the ankle or step on an opponent’s foot. […] Some people are predisposed to ankle sprains. These injuries are more common in people with a high arched foot. This is because it is easier to turn on the ankle. […] In those who have had a severe sprain in the past, it is also easier to turn the ankle and sustain a new sprain. Therefore, one of the risk factors of spraining the ankle is a history of a previous sprain or instability (looseness in the ankle). […] Those who have weak muscles, especially the peroneals that run along the outside of the ankle that provide muscular support to the ankle, may be more predisposed.
  • #1 Sprain – what is it? Causes and treatment | medi
    https://www.medi.de/en/diagnosis-treatment/ankle-pain/sprain/
    Sprains are one of the most common painful sports injuries. It occurs when the joint capsule or the surrounding ligaments and muscles are excessively overstretched due to an unfavourable movement. This excessive movement within a joint usually triggered suddenly can cause injuries to the structures stabilising the joint. […] In sprains, the physiological, i.e., the natural range of motion of a joint is exceeded due to external forces. […] Some people have weak ligaments and tend to get sprains more than others. People with hollow foot, delayed muscle reaction time or muscle weakness are also more frequently affected. […] If your ankle joint is unstable (possibly due to previous injuries or a loose ligamentous apparatus), sprains due to twisting may occur more easily.
  • #1 Recurrent Ankle Sprain – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK560619/
    Recurrent ankle sprains are multifactorial injuries, with index (first-time) ankle sprain being predictive of recurrent ankle sprains in up to 61% of those injured. The most common mechanism of injury for a lateral ankle sprain includes inversion with adduction, as the body asserts force over the foot. This injury most commonly affects the anterior talofibular ligament (ATFL). During an index ankle sprain, the ligaments of the ankle undergo microscopic tears due to the stress applied, resulting in attenuation. Factors associated with recurrent ankle sprains include: […] An impairment in the baseline, or pre-injury, level of proprioception in an injured individual pre-dispose the ankle to re-injury. Injury prevention relies on factors such as ankle joint stability. It is heavily dependent on the body’s ability to self-assess internal kinesthetics regarding the position and movement of the ankle joint. Passive and dynamic restraints, such as the joint capsule and muscles, respectively, are weakened, increasing the risk of recurrence.
  • #1 Sprain – Wikipedia
    https://en.wikipedia.org/wiki/Sprain
    A sprain is a soft tissue injury of the ligaments within a joint, often caused by a sudden movement abruptly forcing the joint to exceed its functional range of motion. […] Acute sprains typically occur when the joint is abruptly forced beyond its functional range of motion, often in the setting of trauma or sports injuries. The most common cause of sprains in general is repetitive movements (overuse). […] Collagen fibers have about a 4% elastic zone where fibers stretch out with increased load on the joint. However, exceeding this elastic limit causes a rupture of fibers, leading to a sprain. […] Risk factors include fatigue and overuse, high-intensity contact sports, environmental factors, poor conditioning or equipment, age and genetic predisposition to ligament injuries, and lack of stretching or „warming up”.
  • #1 Sprains, Strains & Other Soft-Tissue Injuries – OrthoInfo – AAOS
    https://orthoinfo.aaos.org/en/diseases–conditions/sprains-strains-and-other-soft-tissue-injuries/
    The most common soft tissues injured are muscles, tendons, and ligaments. These injuries often occur during sports and exercise activities, but sometimes simple everyday activities can cause an injury. […] Soft-tissue injuries fall into two basic categories: acute injuries and overuse injuries. […] Acute injuries are caused by a sudden trauma, such as a fall, twist, or blow to the body. Examples include sprains, strains, and contusions. […] A sprain is a stretch and/or tear of a ligament, a strong band of connective tissue that connects the end of one bone with another. […] The areas of the body that are most vulnerable to sprains are the ankles, knees, and wrists. […] A twisting force to the lower leg or foot is a common cause of ankle sprains. […] Sprains are classified by severity: Grade 1 sprain (mild): Slight stretching and some damage to the fibers of the ligament. Grade 2 sprain (moderate): Partial tearing of the ligament. There is abnormal looseness (laxity) in the joint when it is moved in certain ways. Grade 3 sprain (severe): Complete tear of the ligament. This may cause significant instability.
  • #1 Sprained Ankle – OrthoInfo – AAOS
    https://orthoinfo.aaos.org/en/diseases–conditions/sprained-ankle/
    Ankle sprains are common injuries that occur among people of all ages and at all activity levels; in fact, they are the number one reason for missed participation in athletics. […] An ankle sprain occurs when the strong ligaments that support the ankle stretch beyond their limits and tear. The severity of a sprain can vary greatly depending on the number of ligaments involved and the extent to which the ligaments are torn. […] Around 90% of ankle sprains involve an inversion injury (the foot turns inward) to the anterior talofibular (ATFL) and calcaneofibular (CFL) ligaments the lateral ligaments on the outside of the ankle. […] The less common medial ankle sprain is caused by an eversion injury (the foot turns out) to the deltoid ligament on the inside of the ankle. […] Patients often recall a twisting injury to their foot or ankle. If there is severe tearing of the ligaments, you might also hear or feel a pop. Sprains may occur unexpectedly during many different activities, such as: Walking or exercising on an uneven surface, Falling down or tripping, Participating in sports that require cutting or jumping actions, such as trail running, basketball, tennis, football, and soccer. […] Without proper treatment and rehabilitation, a chronic or untreated severe sprain can weaken your ankle, making it more likely that you will injure it again. Repeated ankle sprains can lead to long-term problems, including chronic ankle pain, arthritis, and instability.
  • #1 Wrist and Hand Sprains: Causes, Symptoms and Treatment | Nationwide Children’s Hospital
    https://www.nationwidechildrens.org/conditions/wrist-and-hand-sprains
    A sprain of the wrist or hand is a stretching or tearing of the ligaments that connect bones together. […] A wrist/hand sprain may occur from a direct blow to the area. […] Falling on an outstretched arm/hand or contact that causes the wrist to forcefully move in one direction. […] It can also occur from movement involving an abrupt twist or hyperextension.
  • #1
    https://www.footcaremd.org/conditions-treatments/ankle/high-ankle-sprain
    A high ankle sprain, also called a syndesmotic injury, occurs when there is tearing and damage to the high ankle ligaments. These injuries are much less common than a traditional ankle sprain. […] A high ankle sprain occurs from a twisting or rotational injury. They are common in sports, especially impact sports. An external rotation mechanism most commonly causes these tears, when the foot is turned towards the outside with respect to the leg. […] A high ankle sprain also can occur if the ankle is broken. In some cases, the ligament on the inside of the ankle (the deltoid) will be torn. […] This causes the fibula to be broken at a very high level. This type of fracture is called a Maisonneuve fracture.
  • #1 Causes and Risk Factors for Knee Sprains
    https://www.sports-health.com/sports-injuries/knee-injuries/causes-and-risk-factors-knee-sprains
    Medical experts know what mechanical forces typically cause knee sprains and what factors can increase the risk of knee sprains. […] Most knee sprains occur as a result of: Direct impact on the knee from an outside force, Pressure on the knee resulting from an abrupt stopping force or change in direction, Over-straightening of the knee joint or hyperextension (less common). […] Any athlete can sustain a knee sprain, but there are several risk factors that can increase the likelihood of a knee sprain occurring. These factors include: Improper footwear. An athlete’s shoes should be suited to the athlete’s biomechanics and appropriate for the sport. Inappropriate footwear can put more pressure on the knee joint and/or put the athlete at risk for accidents. Prior injury. Having previously sprained a knee ligament increases the chance of re-injury. Unexpected exertion. People who ramp up their training or level of athletic competition too quickly may increase their risk of knee sprains. […] Cutting and contact sports. For example, soccer, football, women’s basketball players have higher risk of knee sprains.
  • #1 Sprained Ankle: Symptoms, Types, Treatment & Recovery
    https://my.clevelandclinic.org/health/diseases/22048-sprained-ankle
    Most sprains heal on their own, but rebuilding strength in your ankle can help prevent future injuries. […] If you don’t allow your ankle ligaments time to heal, you may have long-lasting instability (chronic ankle sprains) or repeat ankle sprains. […] The difference between a high ankle sprain and an ankle sprain depends on the location and ligaments that were injured.
  • #1 Ankle Sprain | UConn Musculoskeletal Institute
    https://health.uconn.edu/msi/clinical-services/orthopaedic-surgery/foot-ankle-and-podiatry/ankle-sprain/
    Possible complications of ankle sprains and treatment include abnormal proprioception. There may be imbalance and muscle weakness that causes a re-injury. If this happens over and over again, a chronic situation may persist with instability, a sense of the ankle giving way (gross laxity) and chronic pain.
  • #1 Sprained Ankle: Causes, Types, and Treatment | Thomson Medical
    https://www.thomsonmedical.com/blog/orthopaedic/sprained-ankle
    This type of injury is less prevalent than the lateral ankle sprain and impacts the ligaments on the inner side of the ankle. […] This injury can cause severe ligament damage because it involves other ligaments in the ankle. […] If the ligament is completely torn and does not improve or heal properly with non-surgical treatments, surgical intervention may be necessary to repair or reconstruct the damaged ligaments. […] Chronic ankle instability, which can cause joint stability issues. […] Arthritis or osteoarthritis, especially if the sprains happen repeatedly. […] If the sprain is not rehabilitated properly, persistent pain, reduced range of motion, and future ankle sprains may occur.
  • #1 Ankle Sprains: Causes, Symptoms & Treatment
    https://www.thefeetpeople.com.au/symptoms-we-treat/ankle-sprains/
    You can twist your ankle during any activity where you lose your balance and roll on your ankle. […] One of the biggest risk factors for ankle sprains is having sprained your ankle before, especially when you havent taken the time to properly rehabilitate the injury and help your ankle recover to full strength and function. […] Up to 20% of people who sprain their ankles continue to have joint stability issues after their injury, with ankle sprains being a leading cause of chronic ankle instability, a condition where your ankle is permanently weakened and less stable, which puts you at a much higher risk of recurrent sprains and other foot and ankle problems. […] Chronic ankle instability also increases your falls risk, which is the largest cause of disability among seniors and the leading cause of unintentional injury deaths. […] Proven ways to help reduce the risk of sprains includes: Ankle taping and bracing – these offer mechanical, neuromuscular and even psychological support that has proven to improve postural control, ankle stability and confidence for those affected.
  • #1 Acute Ankle Sprain – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK459212/
    While most ankle sprains are successfully managed with nonoperative modalities, recurrent instability and associated defects can be seen in up to 25-40% of patients. Recognition of these possible concomitant injuries and the appropriate referral to an orthopedic/sports medicine specialist is mandatory to mitigate the risks of long-term detrimental outcomes.
  • #1 Is It a Sprain or a Strain? How to Tell the Difference > News > Yale Medicine
    https://www.yalemedicine.org/news/difference-between-sprain-and-strain
    A sprain is a stretching or, in more serious cases, a tearing of ligaments, the bands of tissue that connect bones to other bones and stabilize joints. It typically occurs in ankles, knees, and wrists. […] A strain can also range from minor overstretching to a more serious tear, but it affects muscles or tendons, the bands of tissue that connect bones to muscles. […] Both sprains and strains tend to be sudden injuries caused by a minor trauma, such as a fall, bumping into something, overstretching, or twisting a joint. […] Injury occurs because you are stretching the ligaments, tendons, or muscles beyond their normal range or applying a force on them that is more than they can bear. […] Sprains and strains can also happen from overuse, though the onset of pain might appear suddenly.
  • #1 Ankle sprains – causes, symptoms and treatment
    https://www.bauerfeind-group.com/en/health/ankle/ankle-pain/ankle-sprains
    There is hardly a sports injury more common than a sprained ankle. […] An ankle sprain happens when one or more of the joints mentioned above is moved beyond its normal physiological range with a high level of force. […] As the ligaments that hold the joints together are only elastic to a certain extent, they are overstressed if subjected to excessive strain, with painful results. […] If the ligaments tear at their insertion site, bone fragments may also be pulled away from the joint, which is visible on an x-ray. […] In the case of a traumatic sprain or traumatic injury in the upper ankle, the joint capsule is usually damaged. […] The medical treatment depends on the extent of the injury, which is divided into three grades of severity: Grade 1: Overextension of the ligaments without damage or joint instability; Grade 2: Severe overextension of one or several ligaments or partial rupture without joint instability; Grade 3: Complete ligament tear in the ankle joint and instability of the joint. […] Avulsion fractures and complete ruptures, however, where the torn areas are no longer in contact with one another, usually have to be treated with surgery.
  • #1 Acute Ankle Sprain – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK459212/
    Ankle sprains most commonly involve injury to the anterior talofibular ligament (ATFL) and/or the calcaneofibular ligament (CFL). Ankle sprains vary depending on the mechanism of injury (high- versus low-energy injuries), position of the foot, and rotational force on the joint and stabilizing ligamentous structures. Low grade injuries (grade I and II) result in stretching or microscopic tears of the stabilizing ligaments, while a high grade (grade III) ankle sprain compromises the syndesmotic structures. The mechanism may also lead to complete tendon disruptions and fractures of the ankle and foot in the highest energy scenarios. […] Over two million ankle sprains are treated in the emergency departments alone in the United States and United Kingdom. Ankle sprains are the most frequent injury sustained in sports.
  • #1 Ankle Sprain | UConn Musculoskeletal Institute
    https://health.uconn.edu/msi/clinical-services/orthopaedic-surgery/foot-ankle-and-podiatry/ankle-sprain/
    A sprained ankle is a very common injury. Approximately 25,000 people experience it each day. A sprained ankle can happen to athletes and non-athletes, children and adults. It can happen when you take part in sports and physical fitness activities. It can also happen when you simply step on an uneven surface, or step down at an angle. […] A ligament is an elastic structure. Ligaments usually stretch within their limits, and then go back to their normal positions. When a ligament is forced to stretch beyond its normal range, a sprain occurs. A severe sprain causes actual tearing of the elastic fibers. […] Ankle sprains happen when the foot twists, rolls or turns beyond its normal motions. A great force is transmitted upon landing. You can sprain your ankle if the foot is planted unevenly on a surface, beyond the normal force of stepping. This causes the ligaments to stretch beyond their normal range in an abnormal position.
  • #1 Ankle Injuries: Causes, Treatments, and Prevention
    https://www.webmd.com/fitness-exercise/ankle-injuries-causes-and-treatments
    Ankle injuries can happen to anyone at any age. However, men between 15 and 24 years old have higher rates of ankle sprain, compared with women older than age 30 who have higher rates than men. […] An ankle injury occurs when the ankle joint is twisted too far out of its normal position. Most ankle injuries occur either during sports activities or while walking on an uneven surface that forces the foot and ankle into an unnatural position. […] In addition to wearing faulty footwear, an ankle injury can happen as a result of: Tripping or falling, Landing awkwardly after a jump, Walking or running on uneven surfaces, A sudden impact such as a car crash, Twisting or rotating the ankle, Rolling the ankle. […] A sprain is the term that describes damage to ligaments when they are stretched beyond their normal range of motion. A ligament sprain can range from many microscopic tears in the fibers that comprise the ligament to a complete tear or rupture.
  • #1 Medial Sprains: Causes & Treatments | The Jackson Clinics
    https://thejacksonclinics.com/medial-sprain-a-pain-in-the-ankle/
    Ankle sprains are one of the most common orthopedic injuries. In fact, more than 20,000 ankle sprains occur each day in the United States. […] Medial ankle sprains happen when the ligaments on the inner side of the ankle specifically the deltoid ligament are stretched or torn, usually due to a forceful twisting motion. […] The simplest reason is that the majority of medial ankle injuries occur as a result of physical sports such as football, basketball, and soccer that involve a lot of jarring landings. […] Other causes include: Sudden changes in direction during sports like football, basketball, or soccer; Collisions with other players that force the foot outward; Tripping on uneven ground or missing a step; Slipping on wet or unstable surfaces; Having poor ankle stability or a history of ankle injuries. […] Interestingly, men are about three times more likely to experience medial ankle sprains than women, often due to higher participation in sports that involve sudden direction changes or awkward landings.
  • #1 Ankle sprains: The types, causes, and best treatments
    https://www.exakthealth.com/en-US/blog/ankle-sprains-the-types-causes-and-best-treatments
    Ankle sprains are the most common injuries seen in sports. […] Research shows that once you’ve had an ankle sprain, you’re 3.5 times more likely to suffer another ankle sprain than someone who hasn’t had one. […] Lateral ankle sprains are caused by an extreme inward rolling (inversion) of your ankle. […] Medial ankle sprains are caused when your ankle rolls outward excessively, or a strong force is applied to your ankle that forces it to turn out excessively. […] A high ankle sprain happens when your foot is dorsiflexed (pointed upward) and twisted either inwards or outwards at very high speed and with extreme force. […] When you sprain your ankle, the ligaments are not the only injured structures. […] The most common symptoms of an ankle sprain are: Pain, especially when you put weight on your ankle or move it in a certain way.
  • #1 Sprains, Strains & Other Soft-Tissue Injuries – OrthoInfo – AAOS
    https://orthoinfo.aaos.org/en/diseases–conditions/sprains-strains-and-other-soft-tissue-injuries/
    A strain is an injury to a muscle and/or tendon. […] Similar to a sprain, a strain may be a simple stretch of your muscle or tendon, or it may involve a partial or complete tear of the muscle and tendon. […] Injuries often occur when people suddenly increase the duration, intensity, or frequency of their activities. Many soft-tissue injuries can be prevented through proper conditioning and training.
  • #1 Sprains and strains | Causes
    https://www.haleonhealthpartner.com/en-gb/pain-relief/conditions/sprains-and-strains/causes-and-mechanisms/
    Since an existing injury is more likely to lead to another, patients should be advised not return to strenuous exercise for up to 8 weeks. […] Psychological factors can also heighten the chance of experiencing muscle pain. […] A person’s mental and emotional state can also play a part in their body pain for example, depression has been associated with an increased risk of developing muscle pain.
  • #2 Sprains: MedlinePlus Medical EncyclopediaLock
    https://medlineplus.gov/ency/article/000041.htm
    A sprain is an injury to the ligaments around a joint. Ligaments are strong, flexible fibers that hold bones together. When a ligament is stretched too far or tears, the area around the joint will become painful and swell. […] Sprains are caused when a joint is forced to move into an unnatural position. For example, „twisting” one’s ankle causes a sprain to the ligaments around the ankle.
  • #2 Sprain – Wikipedia
    https://en.wikipedia.org/wiki/Sprain
    A sprain is a soft tissue injury of the ligaments within a joint, often caused by a sudden movement abruptly forcing the joint to exceed its functional range of motion. […] Acute sprains typically occur when the joint is abruptly forced beyond its functional range of motion, often in the setting of trauma or sports injuries. The most common cause of sprains in general is repetitive movements (overuse). […] Collagen fibers have about a 4% elastic zone where fibers stretch out with increased load on the joint. However, exceeding this elastic limit causes a rupture of fibers, leading to a sprain. […] Risk factors include fatigue and overuse, high-intensity contact sports, environmental factors, poor conditioning or equipment, age and genetic predisposition to ligament injuries, and lack of stretching or „warming up”.
  • #2 Ankle sprains – causes, symptoms and treatment
    https://www.bauerfeind-group.com/en/health/ankle/ankle-pain/ankle-sprains
    There is hardly a sports injury more common than a sprained ankle. […] An ankle sprain happens when one or more of the joints mentioned above is moved beyond its normal physiological range with a high level of force. […] As the ligaments that hold the joints together are only elastic to a certain extent, they are overstressed if subjected to excessive strain, with painful results. […] If the ligaments tear at their insertion site, bone fragments may also be pulled away from the joint, which is visible on an x-ray. […] In the case of a traumatic sprain or traumatic injury in the upper ankle, the joint capsule is usually damaged. […] The medical treatment depends on the extent of the injury, which is divided into three grades of severity: Grade 1: Overextension of the ligaments without damage or joint instability; Grade 2: Severe overextension of one or several ligaments or partial rupture without joint instability; Grade 3: Complete ligament tear in the ankle joint and instability of the joint. […] Avulsion fractures and complete ruptures, however, where the torn areas are no longer in contact with one another, usually have to be treated with surgery.
  • #2 Sprains and Strains Causes, Symptoms, and Treatments
    https://www.upmc.com/services/orthopaedics/conditions/sprains-strains
    Doctors define a sprain as a condition where one or more of the ligaments in your joint are damaged or torn. Ligaments connect the bones to your joints. When damaged, your joint may become unstable, and you also may experience pain and inflammation. […] Sprains often happen when you twist, turn, or stretch a joint beyond its normal range of motion. This can occur during activities like running, jumping, or playing sports, where you might land awkwardly or change direction suddenly. […] A strain is a condition where you stretch or tear a muscle or tendon that connects to the bones in your joint. These muscles and tendons play a crucial role in allowing you to move your body and control movement. When damaged, you may have limitations in mobility and rotation and experience pain. […] Strains often happen when a muscle or tendon gets stretched too far or contracts too strongly. This can occur during activities that require repetitive movements, lifting heavy objects, or sudden movements.
  • #2 Sprains and Strains Meaning, Causes, First Aid, Treatment
    https://www.medicinenet.com/sprained_ankle/article.htm
    A sprain is abnormal stretching or tearing of a ligament that supports a joint. A strain, on the other hand, is abnormal stretching or tearing of a muscle or tendon. Both may be caused by repetitive activities or by a single overuse injury. […] Sprains and strains occur when the body is put under physical stress. In these situations, muscles and joints are forced to perform movements for which they are not prepared or designed. An injury can occur from a single stressful incident or contact sports, or it may gradually arise after many repetitions of a motion. […] Usually, the mechanism of injury involves placing the muscle-tendon unit or the ligament under excessive stretching, causing damage to the muscle, tendon, or ligament fibers. […] The most common cause of a muscle or tendon strain is overuse, which weakens the tissue fibers. Muscles and joints may also be forced to perform movements for which they are not prepared or designed, stretching and potentially damaging the surrounding muscle or tendon. An injury can occur from a single stressful incident, or it may gradually arise after many repetitions of a motion (overuse).
  • #2
    https://www.parkwayeast.com.sg/conditions-diseases/sprains/symptoms-causes
    A sprain is a stretch, twist or tear in a ligament. […] You may experience a sprain when your joint is severely stressed. This can happen when: […] A severe sprain may lead to a fracture or dislocated joint. […] Treat a sprain promptly and allow it to heal before resuming physical activity involving the affected joint. This will prevent chronic pain or chronic joint instability. […] Ankle sprain causes include falling and twisting your ankle, improper landing from a jump, and walking or exercising on bumpy ground. […] Back sprain causes include improper lifting and curving the lower back excessively. […] Knee sprain causes include direct impact to the knee, such as during an accident, and rotating with your knee (e.g. when you play sports). […] Wrist sprain causes include falling and landing on your hand. […] Thumb sprain causes include hitting your thumb against a hard surface. […] Toe sprain causes include trauma, such as hitting your toe on a piece of furniture, and hyperextension beyond your toe’s natural range of movement.
  • #2 Ankle Sprains and Strains | Orthopedics | Mercy Health
    https://www.mercy.com/health-care-services/orthopedics-sports-medicine-spine/specialties/foot-ankle/conditions/ankle-sprains-strains
    Ankle sprains and strains are common injuries for all ages. A sprain is caused by stretching or tearing ligaments while a strain is caused by stretching or tearing a muscle or tendon. […] The most common causes of a sprain or strain are blows or falls affecting the ankle. Other causes of ankle strains or sprains include: Fast and awkward side movements these movements occur when your foot is planted firmly on the ground, and your ankle turns out while your foot turns in causing an ankle strain or sprain. Sprains and strains often occur in sporting activities that involve changing foot position or direction quickly such as soccer, running, football and basketball. Inappropriate footwear can cause an ankle sprain. […] Risk factors for ankle sprains or strains include: Participating in sports or exercise without proper warm ups can be a risk factor for an ankle sprain or strain because the muscles, ligaments, and tendons are tighter when they are not warmed up. Obesity or carrying excess weight can put an individual at a higher risk of an ankle sprain or strain due to greater stress on the ankle while walking, running or participating in sports. Muscle fatigue can also be a risk factor for an ankle sprain or strain long distance runners (marathoners or ultramarathoners) are at high risk for an ankle strain or sprain due to the amount of continuous stress they are putting on the joints.
  • #2 Sprained ankle – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/sprained-ankle/symptoms-causes/syc-20353225
    A sprained ankle is the stretching or tearing of ankle ligaments, which support the joint by connecting bones to each other. […] A sprain occurs when your ankle is forced to move out of its normal position, which can cause one or more of the ankle’s ligaments to stretch, partially tear or tear completely. […] Causes of a sprained ankle might include: A fall that causes your ankle to twist, Landing awkwardly on your foot after jumping or pivoting, Walking or exercising on an uneven surface, Another person stepping or landing on your foot during a sports activity.
  • #2 Texas Podiatrists Explain Common Causes of Ankle Sprains | Austin Foot and Ankle Specialists
    https://www.austinfootandankle.com/blog/texas-podiatrists-explain-common-causes-of-ankle-sprains.cfm
    A sprained ankle happens when your ankle is twisted, turned, or rolled in a manner that causes the ligaments to tear or stretch. […] The most common ankle sprains are caused by the following: Walking and tripping on an uneven surface, Falling after losing your balance, Landing incorrectly after jumping, Wearing high heels or footwear that is not appropriate for the activity you are doing, Having another person step or land on your foot. […] In addition, having a previous ankle sprain or another type of ankle injury makes you more prone to a sprain since your ankle may already be weak.
  • #2 Causes and Risk Factors for Knee Sprains
    https://www.sports-health.com/sports-injuries/knee-injuries/causes-and-risk-factors-knee-sprains
    Medical experts know what mechanical forces typically cause knee sprains and what factors can increase the risk of knee sprains. […] Most knee sprains occur as a result of: Direct impact on the knee from an outside force, Pressure on the knee resulting from an abrupt stopping force or change in direction, Over-straightening of the knee joint or hyperextension (less common). […] Any athlete can sustain a knee sprain, but there are several risk factors that can increase the likelihood of a knee sprain occurring. These factors include: Improper footwear. An athlete’s shoes should be suited to the athlete’s biomechanics and appropriate for the sport. Inappropriate footwear can put more pressure on the knee joint and/or put the athlete at risk for accidents. Prior injury. Having previously sprained a knee ligament increases the chance of re-injury. Unexpected exertion. People who ramp up their training or level of athletic competition too quickly may increase their risk of knee sprains. […] Cutting and contact sports. For example, soccer, football, women’s basketball players have higher risk of knee sprains.
  • #2 Sprains and Strains | Boston Children’s Hospital
    https://www.childrenshospital.org/conditions/sprains-and-strains
    Most sports injuries, such as sprains or strains, are caused by minor trauma. […] Sprains are ligament injuries resulting from wrenching or twisting a joint. […] Strains are injuries to a muscle or tendon, and are often caused by overuse, force, or stretching. […] A strain occurs when muscles and tendons are put under too much sudden force or too much of a stretch and are partially torn. […] Strains can happen as a result of a sudden movement, fall or twist, but can also occur when muscles are fatigued from overuse. […] These can also happen as a result of a fall or twist, but are more likely to happen over time as a result of over-using the muscles.
  • #2 Recurrent Ankle Sprain – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK560619/
    Recurrent ankle sprains are multifactorial injuries, with index (first-time) ankle sprain being predictive of recurrent ankle sprains in up to 61% of those injured. The most common mechanism of injury for a lateral ankle sprain includes inversion with adduction, as the body asserts force over the foot. This injury most commonly affects the anterior talofibular ligament (ATFL). During an index ankle sprain, the ligaments of the ankle undergo microscopic tears due to the stress applied, resulting in attenuation. Factors associated with recurrent ankle sprains include: […] An impairment in the baseline, or pre-injury, level of proprioception in an injured individual pre-dispose the ankle to re-injury. Injury prevention relies on factors such as ankle joint stability. It is heavily dependent on the body’s ability to self-assess internal kinesthetics regarding the position and movement of the ankle joint. Passive and dynamic restraints, such as the joint capsule and muscles, respectively, are weakened, increasing the risk of recurrence.
  • #2 Sprains and Strains Causes, Symptoms, and Treatments
    https://www.upmc.com/services/orthopaedics/conditions/sprains-strains
    A sprain or a strain may happen from: […] Although sprains and strains are common in athletes, they can happen to anyone who overuses or puts too much stress on their joints and muscles. […] Many factors may put you at risk for a sprain or strain, including: […] Sprains and strains can lead to complications if not treated or if they’re severe. […] Some common complications include: […] It’s essential to seek medical attention for sprains and strains, especially if they’re severe or if symptoms persist. Proper treatment, rehabilitation, and preventive measures can help reduce the risk of complications and promote full recovery.
  • #2 Sprained Ankle: Symptoms, 3 Grade Classification, & Treatment
    https://www.webmd.com/fitness-exercise/what-is-an-ankle-sprain
    This injury happens when the ligaments in your ankle tear or get stretched too much. […] Most ankle sprains happen when you’re playing sports. […] You may have a greater chance for an ankle sprain if you’ve had one before. […] Even genetics can play a role. It’s easier to turn your ankle and put strain on the ligament if your heel naturally turns more inward. That’s known as hindfoot varus.
  • #2 Ankle Sprain / Ankle Strain: Causes, Symptoms And Treatment – AIRROSTI
    https://www.airrosti.com/injuries-we-treat/ankle-sprain-ankle-strain-causes-symptoms-and-treatment2/
    Ankle sprains and strains are among the most common injuries, often causing pain, swelling, and difficulty walking. While both injuries involve overstretching or tearing of the soft tissues around the ankle joint, they affect different structures and have distinct symptoms […] Strained or sprained ankles are common injuries, often caused by sports, physical activities, or simply stepping on uneven surfaces. Most people experience a twisted ankle at some point, with pain and swelling being the most common signs of injury. A sprain affects the ankle ligaments, while a strain involves the muscles or tendons. These tissues protect the ankle by stabilizing bones and joints during movement. […] Common causes include: High-impact sports, like basketball or jumping sports, where the ankle can twist or roll […] Walking, running, or exercising on uneven surfaces […] People with hindfoot varus (heels turned inward) are more prone to these injuries […] A history of severe sprains increases the likelihood of future ankle injuries.
  • #2 Ankle Sprain Treatment: Understanding Your Options – Northwest Extremity Specialists
    https://nespecialists.com/ankle-sprains/
    Ankle sprains occur when the ligaments are stretched beyond their limits, often due to: […] Sports activities involving sudden stops, pivots, or jumping […] Falling, tripping, or landing improperly […] Running on uneven surfaces […] Wearing improper footwear with inadequate support […] A history of ankle injuries leading to weakened ligaments […] Certain individuals may be genetically predisposed to weak ankles, increasing their risk of sprains.
  • #2 Sprains and Strains: Causes | Haleon HealthPartner
    https://www.haleonhealthpartner.com/en-us/pain-relief/conditions/sprains-strains/causes/
    The most common kinds of soft tissues to be injured are muscles, tendons, and ligaments. Often, these injuries occur as a result of exercise, sports or other activities. […] Acute injuries are falls, twists, or blows to the body, meaning they are a result of sudden trauma. Examples of acute injuries include sprains, strains, and contusions. […] When a ligament is stretched and/or torn its called a sprain. The ankles, knees, and wrists are areas of the body that are most vulnerable to sprains. Sprained ankles can occur when the foot turns inward which puts a lot of tension on the ligaments of the outer ankle. A sudden twist can cause a sprained knee. If a patient has fallen with an outstretched hand, they might have sprained their wrist. […] There are three severities of sprains: Mild – Grade 1: There may be some damage and slight stretching to the fibers of the ligament. Moderate – Grade 2: There may be a partial tearing of the ligament and abnormal looseness (laxity) in the joint if it is moved in certain ways. Severe – Grade 3: There is a complete tear of the ligament, causing substantial instability. […] In every sprain, there will be pain, bruising, swelling, and inflammation.
  • #2 Acute Ankle Sprain – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK459212/
    Ankle sprains most commonly involve injury to the anterior talofibular ligament (ATFL) and/or the calcaneofibular ligament (CFL). Ankle sprains vary depending on the mechanism of injury (high- versus low-energy injuries), position of the foot, and rotational force on the joint and stabilizing ligamentous structures. Low grade injuries (grade I and II) result in stretching or microscopic tears of the stabilizing ligaments, while a high grade (grade III) ankle sprain compromises the syndesmotic structures. The mechanism may also lead to complete tendon disruptions and fractures of the ankle and foot in the highest energy scenarios. […] Over two million ankle sprains are treated in the emergency departments alone in the United States and United Kingdom. Ankle sprains are the most frequent injury sustained in sports.
  • #2 Ankle sprains: The types, causes, and best treatments
    https://www.exakthealth.com/en-US/blog/ankle-sprains-the-types-causes-and-best-treatments
    Ankle sprains are the most common injuries seen in sports. […] Research shows that once you’ve had an ankle sprain, you’re 3.5 times more likely to suffer another ankle sprain than someone who hasn’t had one. […] Lateral ankle sprains are caused by an extreme inward rolling (inversion) of your ankle. […] Medial ankle sprains are caused when your ankle rolls outward excessively, or a strong force is applied to your ankle that forces it to turn out excessively. […] A high ankle sprain happens when your foot is dorsiflexed (pointed upward) and twisted either inwards or outwards at very high speed and with extreme force. […] When you sprain your ankle, the ligaments are not the only injured structures. […] The most common symptoms of an ankle sprain are: Pain, especially when you put weight on your ankle or move it in a certain way.
  • #2 Medial Sprains: Causes & Treatments | The Jackson Clinics
    https://thejacksonclinics.com/medial-sprain-a-pain-in-the-ankle/
    Ankle sprains are one of the most common orthopedic injuries. In fact, more than 20,000 ankle sprains occur each day in the United States. […] Medial ankle sprains happen when the ligaments on the inner side of the ankle specifically the deltoid ligament are stretched or torn, usually due to a forceful twisting motion. […] The simplest reason is that the majority of medial ankle injuries occur as a result of physical sports such as football, basketball, and soccer that involve a lot of jarring landings. […] Other causes include: Sudden changes in direction during sports like football, basketball, or soccer; Collisions with other players that force the foot outward; Tripping on uneven ground or missing a step; Slipping on wet or unstable surfaces; Having poor ankle stability or a history of ankle injuries. […] Interestingly, men are about three times more likely to experience medial ankle sprains than women, often due to higher participation in sports that involve sudden direction changes or awkward landings.
  • #2 Sprains and Strains Meaning, Causes, First Aid, Treatment
    https://www.medicinenet.com/sprained_ankle/article.htm
    A sprain is an injury to a ligament. A strain is an injury to a muscle or tendon tissue. […] The grading system for sprain injury is similar to that of strains. Grade 1 sprains occur when fibers of the ligament are stretched but not torn. Grade 2 sprains are injuries where the ligament is partially torn. Grade 3 sprains occur when the ligament is completely torn or ruptured. […] The severity of the injury depends upon the amount of tissue that is damaged. The muscle fiber may be just stretched, partially torn, or completely torn apart. […] A previous sprain or strain is a risk factor for another future injury to that particular area. Being certain that an injured body part is completely healed before stressing it again is essential to minimize that risk.
  • #2 Sprained Ankle – OrthoInfo – AAOS
    https://orthoinfo.aaos.org/en/diseases–conditions/sprained-ankle/
    Ankle sprains are common injuries that occur among people of all ages and at all activity levels; in fact, they are the number one reason for missed participation in athletics. […] An ankle sprain occurs when the strong ligaments that support the ankle stretch beyond their limits and tear. The severity of a sprain can vary greatly depending on the number of ligaments involved and the extent to which the ligaments are torn. […] Around 90% of ankle sprains involve an inversion injury (the foot turns inward) to the anterior talofibular (ATFL) and calcaneofibular (CFL) ligaments the lateral ligaments on the outside of the ankle. […] The less common medial ankle sprain is caused by an eversion injury (the foot turns out) to the deltoid ligament on the inside of the ankle. […] Patients often recall a twisting injury to their foot or ankle. If there is severe tearing of the ligaments, you might also hear or feel a pop. Sprains may occur unexpectedly during many different activities, such as: Walking or exercising on an uneven surface, Falling down or tripping, Participating in sports that require cutting or jumping actions, such as trail running, basketball, tennis, football, and soccer. […] Without proper treatment and rehabilitation, a chronic or untreated severe sprain can weaken your ankle, making it more likely that you will injure it again. Repeated ankle sprains can lead to long-term problems, including chronic ankle pain, arthritis, and instability.
  • #2
    https://www.footcaremd.org/conditions-treatments/ankle/ankle-sprain
    Ankle sprains rarely, if ever, needed to be treated with surgery. The vast majority simply need to be treated with rest, ice, compression, and elevation followed by physical therapy and temporary bracing. […] The more you sprain an ankle, the greater the chance that long-term problems will develop.
  • #2 Sprained Ankle: Causes, Types, and Treatment | Thomson Medical
    https://www.thomsonmedical.com/blog/orthopaedic/sprained-ankle
    This type of injury is less prevalent than the lateral ankle sprain and impacts the ligaments on the inner side of the ankle. […] This injury can cause severe ligament damage because it involves other ligaments in the ankle. […] If the ligament is completely torn and does not improve or heal properly with non-surgical treatments, surgical intervention may be necessary to repair or reconstruct the damaged ligaments. […] Chronic ankle instability, which can cause joint stability issues. […] Arthritis or osteoarthritis, especially if the sprains happen repeatedly. […] If the sprain is not rehabilitated properly, persistent pain, reduced range of motion, and future ankle sprains may occur.
  • #2 Ankle Sprains: Causes, Symptoms & Treatment
    https://www.thefeetpeople.com.au/symptoms-we-treat/ankle-sprains/
    You can twist your ankle during any activity where you lose your balance and roll on your ankle. […] One of the biggest risk factors for ankle sprains is having sprained your ankle before, especially when you havent taken the time to properly rehabilitate the injury and help your ankle recover to full strength and function. […] Up to 20% of people who sprain their ankles continue to have joint stability issues after their injury, with ankle sprains being a leading cause of chronic ankle instability, a condition where your ankle is permanently weakened and less stable, which puts you at a much higher risk of recurrent sprains and other foot and ankle problems. […] Chronic ankle instability also increases your falls risk, which is the largest cause of disability among seniors and the leading cause of unintentional injury deaths. […] Proven ways to help reduce the risk of sprains includes: Ankle taping and bracing – these offer mechanical, neuromuscular and even psychological support that has proven to improve postural control, ankle stability and confidence for those affected.
  • #2 Is It a Sprain or a Strain? How to Tell the Difference > News > Yale Medicine
    https://www.yalemedicine.org/news/difference-between-sprain-and-strain
    A sprain is a stretching or, in more serious cases, a tearing of ligaments, the bands of tissue that connect bones to other bones and stabilize joints. It typically occurs in ankles, knees, and wrists. […] A strain can also range from minor overstretching to a more serious tear, but it affects muscles or tendons, the bands of tissue that connect bones to muscles. […] Both sprains and strains tend to be sudden injuries caused by a minor trauma, such as a fall, bumping into something, overstretching, or twisting a joint. […] Injury occurs because you are stretching the ligaments, tendons, or muscles beyond their normal range or applying a force on them that is more than they can bear. […] Sprains and strains can also happen from overuse, though the onset of pain might appear suddenly.
  • #2 Sprains, Strains & Other Soft-Tissue Injuries – OrthoInfo – AAOS
    https://orthoinfo.aaos.org/en/diseases–conditions/sprains-strains-and-other-soft-tissue-injuries/
    The most common soft tissues injured are muscles, tendons, and ligaments. These injuries often occur during sports and exercise activities, but sometimes simple everyday activities can cause an injury. […] Soft-tissue injuries fall into two basic categories: acute injuries and overuse injuries. […] Acute injuries are caused by a sudden trauma, such as a fall, twist, or blow to the body. Examples include sprains, strains, and contusions. […] A sprain is a stretch and/or tear of a ligament, a strong band of connective tissue that connects the end of one bone with another. […] The areas of the body that are most vulnerable to sprains are the ankles, knees, and wrists. […] A twisting force to the lower leg or foot is a common cause of ankle sprains. […] Sprains are classified by severity: Grade 1 sprain (mild): Slight stretching and some damage to the fibers of the ligament. Grade 2 sprain (moderate): Partial tearing of the ligament. There is abnormal looseness (laxity) in the joint when it is moved in certain ways. Grade 3 sprain (severe): Complete tear of the ligament. This may cause significant instability.
  • #2 Sprains, Strains & Other Soft-Tissue Injuries – OrthoInfo – AAOS
    https://orthoinfo.aaos.org/en/diseases–conditions/sprains-strains-and-other-soft-tissue-injuries/
    A strain is an injury to a muscle and/or tendon. […] Similar to a sprain, a strain may be a simple stretch of your muscle or tendon, or it may involve a partial or complete tear of the muscle and tendon. […] Injuries often occur when people suddenly increase the duration, intensity, or frequency of their activities. Many soft-tissue injuries can be prevented through proper conditioning and training.
  • #2
    https://www.footcaremd.org/conditions-treatments/ankle/high-ankle-sprain
    A high ankle sprain, also called a syndesmotic injury, occurs when there is tearing and damage to the high ankle ligaments. These injuries are much less common than a traditional ankle sprain. […] A high ankle sprain occurs from a twisting or rotational injury. They are common in sports, especially impact sports. An external rotation mechanism most commonly causes these tears, when the foot is turned towards the outside with respect to the leg. […] A high ankle sprain also can occur if the ankle is broken. In some cases, the ligament on the inside of the ankle (the deltoid) will be torn. […] This causes the fibula to be broken at a very high level. This type of fracture is called a Maisonneuve fracture.
  • #2 Ankle Sprains: Causes, Symptoms & Treatments – Indigo
    https://www.indigohealth.com/blog/ankle-sprains-101-causes-symptoms-and-treatments/
    Ankle injuries are very common. In fact, about 25,000 Americans sustain an ankle sprain every day. […] A sprain occurs when the ligaments in the joint are twisted, turned or damaged in another way. More than 80% of ankle sprains are due to inward rolling, called an inversion. When this happens, it causes the ligaments to stretch or tear beyond their normal limits.
  • #2 Sprains and strains | Causes
    https://www.haleonhealthpartner.com/en-gb/pain-relief/conditions/sprains-and-strains/causes-and-mechanisms/
    Since an existing injury is more likely to lead to another, patients should be advised not return to strenuous exercise for up to 8 weeks. […] Psychological factors can also heighten the chance of experiencing muscle pain. […] A person’s mental and emotional state can also play a part in their body pain for example, depression has been associated with an increased risk of developing muscle pain.
  • #3 Ankle Sprain | UConn Musculoskeletal Institute
    https://health.uconn.edu/msi/clinical-services/orthopaedic-surgery/foot-ankle-and-podiatry/ankle-sprain/
    A sprained ankle is a very common injury. Approximately 25,000 people experience it each day. A sprained ankle can happen to athletes and non-athletes, children and adults. It can happen when you take part in sports and physical fitness activities. It can also happen when you simply step on an uneven surface, or step down at an angle. […] A ligament is an elastic structure. Ligaments usually stretch within their limits, and then go back to their normal positions. When a ligament is forced to stretch beyond its normal range, a sprain occurs. A severe sprain causes actual tearing of the elastic fibers. […] Ankle sprains happen when the foot twists, rolls or turns beyond its normal motions. A great force is transmitted upon landing. You can sprain your ankle if the foot is planted unevenly on a surface, beyond the normal force of stepping. This causes the ligaments to stretch beyond their normal range in an abnormal position.
  • #3 Sprained Ankle: Symptoms, 3 Grade Classification, & Treatment
    https://www.webmd.com/fitness-exercise/what-is-an-ankle-sprain
    This injury happens when the ligaments in your ankle tear or get stretched too much. […] Most ankle sprains happen when you’re playing sports. […] You may have a greater chance for an ankle sprain if you’ve had one before. […] Even genetics can play a role. It’s easier to turn your ankle and put strain on the ligament if your heel naturally turns more inward. That’s known as hindfoot varus.
  • #3 Sprains and Strains: Causes | Haleon HealthPartner
    https://www.haleonhealthpartner.com/en-us/pain-relief/conditions/sprains-strains/causes/
    The most common kinds of soft tissues to be injured are muscles, tendons, and ligaments. Often, these injuries occur as a result of exercise, sports or other activities. […] Acute injuries are falls, twists, or blows to the body, meaning they are a result of sudden trauma. Examples of acute injuries include sprains, strains, and contusions. […] When a ligament is stretched and/or torn its called a sprain. The ankles, knees, and wrists are areas of the body that are most vulnerable to sprains. Sprained ankles can occur when the foot turns inward which puts a lot of tension on the ligaments of the outer ankle. A sudden twist can cause a sprained knee. If a patient has fallen with an outstretched hand, they might have sprained their wrist. […] There are three severities of sprains: Mild – Grade 1: There may be some damage and slight stretching to the fibers of the ligament. Moderate – Grade 2: There may be a partial tearing of the ligament and abnormal looseness (laxity) in the joint if it is moved in certain ways. Severe – Grade 3: There is a complete tear of the ligament, causing substantial instability. […] In every sprain, there will be pain, bruising, swelling, and inflammation.
  • #3 Ankle sprains – causes, symptoms and treatment
    https://www.bauerfeind-group.com/en/health/ankle/ankle-pain/ankle-sprains
    There is hardly a sports injury more common than a sprained ankle. […] An ankle sprain happens when one or more of the joints mentioned above is moved beyond its normal physiological range with a high level of force. […] As the ligaments that hold the joints together are only elastic to a certain extent, they are overstressed if subjected to excessive strain, with painful results. […] If the ligaments tear at their insertion site, bone fragments may also be pulled away from the joint, which is visible on an x-ray. […] In the case of a traumatic sprain or traumatic injury in the upper ankle, the joint capsule is usually damaged. […] The medical treatment depends on the extent of the injury, which is divided into three grades of severity: Grade 1: Overextension of the ligaments without damage or joint instability; Grade 2: Severe overextension of one or several ligaments or partial rupture without joint instability; Grade 3: Complete ligament tear in the ankle joint and instability of the joint. […] Avulsion fractures and complete ruptures, however, where the torn areas are no longer in contact with one another, usually have to be treated with surgery.
  • #3 Ankle Sprains: Causes, Symptoms & Treatment
    https://www.thefeetpeople.com.au/symptoms-we-treat/ankle-sprains/
    You can twist your ankle during any activity where you lose your balance and roll on your ankle. […] One of the biggest risk factors for ankle sprains is having sprained your ankle before, especially when you havent taken the time to properly rehabilitate the injury and help your ankle recover to full strength and function. […] Up to 20% of people who sprain their ankles continue to have joint stability issues after their injury, with ankle sprains being a leading cause of chronic ankle instability, a condition where your ankle is permanently weakened and less stable, which puts you at a much higher risk of recurrent sprains and other foot and ankle problems. […] Chronic ankle instability also increases your falls risk, which is the largest cause of disability among seniors and the leading cause of unintentional injury deaths. […] Proven ways to help reduce the risk of sprains includes: Ankle taping and bracing – these offer mechanical, neuromuscular and even psychological support that has proven to improve postural control, ankle stability and confidence for those affected.
  • #3 Sprains and Strains Meaning, Causes, First Aid, Treatment
    https://www.medicinenet.com/sprained_ankle/article.htm
    A sprain is abnormal stretching or tearing of a ligament that supports a joint. A strain, on the other hand, is abnormal stretching or tearing of a muscle or tendon. Both may be caused by repetitive activities or by a single overuse injury. […] Sprains and strains occur when the body is put under physical stress. In these situations, muscles and joints are forced to perform movements for which they are not prepared or designed. An injury can occur from a single stressful incident or contact sports, or it may gradually arise after many repetitions of a motion. […] Usually, the mechanism of injury involves placing the muscle-tendon unit or the ligament under excessive stretching, causing damage to the muscle, tendon, or ligament fibers. […] The most common cause of a muscle or tendon strain is overuse, which weakens the tissue fibers. Muscles and joints may also be forced to perform movements for which they are not prepared or designed, stretching and potentially damaging the surrounding muscle or tendon. An injury can occur from a single stressful incident, or it may gradually arise after many repetitions of a motion (overuse).
  • #3 Sprains and strains | Better Health Channel
    https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/sprains-and-strains
    A sprain is an injury to the ligaments and capsule of a joint in the body. […] A strain is an injury to muscles or tendons. […] Healing depends on various factors including the type of tissue and severity of injury, treatment undertaken, previous injuries, and the age and general health of the person. […] With general use, muscles gently contract to resist overstretching. However, sudden twists or jolts can apply greater force than the tissue can tolerate, resulting in a tear or rupture of the fibres. […] The damage to these fibres triggers an immune reaction called inflammation. […] Injuries to soft tissues such as ligaments, muscles and tendons can come on suddenly, and occasionally be recurrent or get worse over time (usually due to suboptimal treatment and rehabilitation). […] A sudden injury is often related to a specific incident and is termed an acute soft tissue injury.
  • #3 Strains | Sprains | MedlinePlus
    https://medlineplus.gov/sprainsandstrains.html
    A sprain is a stretched or torn ligament. Ligaments are tissues that connect bones at a joint. Falling, twisting, or getting hit can all cause a sprain. […] A strain is a stretched or torn muscle or tendon. Tendons are tissues that connect muscle to bone. Twisting or pulling these tissues can cause a strain. Strains can happen suddenly or develop over time. […] Many people get strains playing sports.
  • #3 Quick Facts:Overview of Sprains – Merck Manual Consumer Version
    https://www.merckmanuals.com/home/quick-facts-injuries-and-poisoning/sprains-and-other-soft-tissue-injuries/overview-of-sprains
    A sprain is a tear in or painful stretch of one of your ligaments. […] A sprain is mild, moderate, or severe based on whether your ligament is stretched, partly torn, or fully torn. […] You get a sprain if a joint is twisted, stretched, or bent too far, such as from: A sports injury, Falling. […] If a ligament is completely torn, the bones in the joint may separate. […] Each joint has several ligaments. Sometimes more than one is sprained.
  • #3 Sprains and Strains Meaning, Causes, First Aid, Treatment
    https://www.medicinenet.com/sprained_ankle/article.htm
    A sprain is an injury to a ligament. A strain is an injury to a muscle or tendon tissue. […] The grading system for sprain injury is similar to that of strains. Grade 1 sprains occur when fibers of the ligament are stretched but not torn. Grade 2 sprains are injuries where the ligament is partially torn. Grade 3 sprains occur when the ligament is completely torn or ruptured. […] The severity of the injury depends upon the amount of tissue that is damaged. The muscle fiber may be just stretched, partially torn, or completely torn apart. […] A previous sprain or strain is a risk factor for another future injury to that particular area. Being certain that an injured body part is completely healed before stressing it again is essential to minimize that risk.
  • #3 Ankle Sprain | UConn Musculoskeletal Institute
    https://health.uconn.edu/msi/clinical-services/orthopaedic-surgery/foot-ankle-and-podiatry/ankle-sprain/
    If there is a severe in-turning or out-turning of the foot relative to the ankle, the forces cause the ligaments to stretch beyond their normal length. If the force is too strong, the ligaments can tear. […] The amount of force determines the grade of the sprain. A mild sprain is a Grade 1. A moderate sprain is a Grade 2. A severe strain is a Grade 3. […] If an ankle sprain is not recognized, and is not treated with the necessary attention and care, chronic problems of pain and instability may result. […] The best way to prevent ankle sprains is to maintain good strength, muscle balance and flexibility. […] If you have sprained your ankle in the past, you may continue to sprain it if the ligaments did not have time to completely heal. If the sprain happens frequently and pain continues for more than four weeks to six weeks, you may have a chronic ankle sprain.