Ankle joint and foot Flashcards
What are the joints of the ankle?
Ankle; Tibia-Fibula articulate with the talus. (dorsi and plantarflexion) Subtalar joint; Inf. Talus and Sup. Calcaneus (Inversion and eversion)
What is the most stable position of the ankle?
Dorsiflexion
What exists between the distal tibia and fibula?
Syndemosis -> Interosseus membrane
Whats the importance of the syndemosis?
Prevents splaying of the tib-fib and is important to consider in ankle joints.
What ligaments stabilise the ankle?
- Ant. and post. tibiofibular ligaments. - Interroseus membrane - Medial ligament (deltoid lig., broad) (prevents eversion) - Lateral ligament
What does the lateral lig. do?
Prevents inversion Ant. talofibular lig most likely to rupture in injury.
Describe the lateral ankle lig;
Ant. and Post. Talofibular ligaments and calcaneofibular ligament.
What are the dorsiflexes of the foot?
Tib. Anterior EDL EHL Peroneus Tertius (Ant. compartment)
What is the myotome of the dorsiflexes?
L4 (Tib. Ant)
What are the plantarflexes? and myotomes?
Post. comp. S1
What are the foot inverters and myotome?
Tib. Ant and Post. (base 1st Metatarsal) L4
What are the foot everters and myotome?
Lateral compartment (Peroneus) L5
What is a feature of the ankle for vascular and neural supply?
Tarsal tunnel
What goes through the tarsal tunnel?
Post tibial artery (Forms medial and lateral plantar art.) Tibial nerve (Forms medial and lateral plantar nerves) Acronym; TDAVNH Tibialis post. flexor Digitorium longus post. tibial Artery post. tibial Vein tibial Nerve flexor Hallicus longus
