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30 Cards in this Set
- Front
- Back
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course of flexor digitorum longus
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lateral to posterior tibial tenodon and then divides to insert into plantar aspect of distal phalanges of 2-5th digits
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course of flexor hallicus longus
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most lateral flexor tendon
passes in groove on medial side of posterior process of talus and beneath sustentaculum talus passes along plantar aspect of foot btwn hallux sessamoids and 1st digit |
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which flexor tendon most commonly has fluid around it
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flexor hallicus longus
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how to distinguish nml fluid around FHL compared to stenosing tenosynovitis
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if there is pooling, or focal asymmetric fluid this is stenosing tenosynovitis
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pathophys of stenoisng tenosynovitis
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focal areas of synovitis/fibrosis in tendon sheath
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common assoc of stenosing tenosynovitis of FHL with this other entity
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os trigonum syndrome
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what is os trigonum syndrome
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2/2 extreme plantar flx and causes os trigonum and FHL to be trapped within posterior malleolus of tibia and calcaneous
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mechanism of injury to cause os trigonum syndrome
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severe plantar flexion
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which are the lateral ankle tendons
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peroneus longus and brevis
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course of the peroneus tendons
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pass posteriorly and inferiorly to lateral malleoulus
they share a common tendon sheath proximally and separate more distally |
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distal attachment site of peroneous longus and brevis
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longus: plantar surfae of base of 1st MT and medial cuneiform
brevis: attaches to base of 5th MT |
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how are the peroneus tendons commonly injured
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calcaneus fx can cause entrapment of tendons btwn fx fragments --> tendon tears and displacement
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peroneus split injury
results from |
longitudinal/vertical tears of peroneus brevis
results from recurrent inversion injury, occurs during dorsiflexion (brevis gets wedged btwn lat mall and peroneus longus tendon) tear is at distal tip of lat mall |
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injury assoc with peroneus split injury
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peroneus longus tear
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mechanism of peronisu longus tear
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a lax superior retinaculum can cause injury
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ddx for peroneus brevis split
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peroneus quartus
bifurcated distal peroneus brevis tendon both have 2 muscles bellies and 2 tendons, both are nml variants |
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anterior ankle tendons
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anterior tibialis
extensor hallicus longus extensor digitorum longus perineus tertius |
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who gets anterior ankle tendon tears
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they are rare, but when they occur, most often in older pts, hill runners
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what comprises the deltoid ligament
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tibiotalar lig
tibiocalcaneal lig talonavicula lig spring lig |
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is deltoid ligament medial or lateral
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medial
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what ligaments comprise the lateral ankle
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anterior talofib
anterior calcaneofibular posterior talofib |
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what order are the lateral ankle ligaments injured
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anterior talo-fib
anterior calcaneo-fib postr talofib |
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what comprises the syndesmosis
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tib-fib ligaments
interosseous membrane |
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appearance of a chronic ligamentous tear
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discontinuity of the ligament with scarring
ligament is intact but irregular |
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what are lateral ligamentous tears assoc with
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sinus tarsi syndrome
ant/lat impingement syndrome longitudinal split tears of peroneus brevis |
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what is contained in sinus tarsi
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fat
ligaments neurovasc |
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why is the sinus tarsi impt
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plays a role in proprioception in hind foot and hind foot stability
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presentation of sinus tarsi syndrome
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lateral foot pain and ankle instability
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what is sinus tarsi syndrome assoc with
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tears of ant-talofib ligaments and calc-fib ligs
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appearance of sinus tarsi syndrome
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obliteration of ALL fat within sinus tarsi
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