Foot And Ankle Flashcards
What are the articulations of the ankle and foot?
Distal tibia and talus
Subtalar joint
What movements are possible at the ankle?
Flexion/extension
What movements are possible at the subtalar joint?
Inversion/eversion
What muscles produce plantarflexion?
Lateral and posterior leg muscles
What muscles produce dorsiflexion?
Anterior leg muscles
What muscles perform foot inversion?
Tibialis anterior and tibialis posterior
What muscles perform foot eversion?
Extensor digitorum longus, extensor hallucis longus, peronius tertius, lateral leg muscles
What are the ligaments of the medial ankle?
Anterior tibiotalar ligament, posterior tibiotalar ligament and deltoid ligament
What are the ligaments of the lateral ankle?
Anterior talofibular ligament, posterior talofibular ligament and calcaneofibular ligament
Which side of the ankle is more stable?
Medial
Why is foot inversion easier than foot eversion?
Less ligaments
What landmark holds the tendons of the ankle close to the bone posterior to the medial malleolus?
Flexor retinaculum (tarsal tunnel)
Forced inversion of the foot is likely to rupture the…
Calcaneofibular ligament
Forced eversion of the foot is likely to cause…
Medial malleolus fracture/avulsion
