Extra Info Muscles and Movements

Question 1

What are the 2 different surfaces for the ankle joint

Answer 1

Weight bearing surface
- trochlear surfaces of the tibia and talus
Stabilising surfaces
- medial and lateral malleoli that grip the body of the talus
- the ankle joint is most stable in dorsiflexion (the closed packed position)

Question 2

What movements can the ankle joint produce

Answer 2

Uniaxial joint 
1 degree of movement 
Sagittal plane/frontal axis 
Dorsiflexion 
Plantarflexion 
Neutral position in standing is plantigrade

Question 3

What are the subtalar joint ligaments

Answer 3

Medial talocalcanean 
- medial to posterior talus 
- sustentaculum talus 
Posterior talocalcanean 
- lateral talus 
- upper medial calcaneus 
Lateral talocalcanean 
- deep to calcaneofibular ligament 
- posterior talus and lateral calcaneus 
Interosseous talocalcanean 
-floor of sinus tarsi 
-talus