foot joints Flashcards
what type of joints are the prox and distal tibiofibular joints
prox- synovial
distal-syndesmosis
what two ligs help stabilize the distal tibiofib joint
Ant and post tibiofibular j
what three ligs make up the distal syndesmosis
interosseous tibiofibular
posterior tibiofibular
inferior transverse tibiofibular
attachments of post tibiofibular lig
malleolar fossa to postlat margin of tibia
attachments of transverse tibiofibular lig
btwn post margin of medial malleolus and malleolar fossa of lat malleolus
forms malleolar mortise
what surfaces make up the talocrural hinge j
formed by tibia, fibula and talus
superior articular facet, lateral malleolar face, medial articular facet
when is the talocrural joint most unstable
when it is plantar flexed because the post part of the talus is thinner
what 4 ligs make up the medial collateral deltoid lig of the ankle
- Ant tibiotalar
- tibionavivular
- tibiocalcaneal
- post tibiotalar
what structure makes the floor of the tarsal tunnel
deltoid lig
3 lat collateral ligs
post talofibular
calcaneofibular
ant talofibular
fibulas longus and braves crosses what log
calcaneofubibular
most frequently torn lig in lat ankle
ant talofibular
what happens during an eversion sprain
medial malleolus is torn off by tibiocalcaneal lig
what makes up the subtler j
inf surface of talus (post)
Sup surface of calcaneus (post)
what stabilizes the subtlar j
interosseous talocalcaneal j