Ankle Joint

Question 1

Bones in ankle joint

Answer 1

Distal ends of the tibia and fibula and the body of the talus

Question 2

What type of joint is the ankle?

Answer 2

Synovial hinge joint

Question 3

Functions of the ankle joint

Answer 3

Adjusting the line of gravity during standing and providing the propulsion and restraint required during gait

Question 4

Joint capsule

Answer 4

Fibrous capsule that’s completely surrounds the joint attaching to articular margins of the tibia and fibula

Question 5

Synovial membrane

Answer 5

Lose and capacious. It lines the joint capsule and is reflected anteriorly onto the neck of the talus before attaching to the articular margins
It covers well-marked fatty pads that lie in relation to the anterior and posterior part

Question 6

Deltoid ligaments

Answer 6

Tibia-calcareous-navicular
Superior posterior tibiotalar
Deep posterior tibiotalar
Deep anterior tibiotalar

Question 7

Lateral ligaments

Answer 7

Anterior talofibular
Posterior talofibular
Calcaneofibular

Question 8

Collateral ligaments

Answer 8

Laxity of the ankle joint is dependent on its position full dorsiflexion being the position of least laxity
Maintaining stability and controlling movements

Question 9

Maintaining stability

Answer 9

Tibiocalcaneal and tibionavicular control abduction of the talus
Calcanefibular controls adduction of the talus
Anterior tibiotalar band and anterior talofibular control plantarflexion
Posterior talofibular and posterior tibiotalar resists dorsiflexion
Anterior tibiotalar and tibionavicular bands control external rotation
Anterior talofibular and anterior tibiotalar and tibionavicular internally rotate the talus

Question 10

Movement

Answer 10

The axis is not horizontal but slopes slightly downwards and laterally
Dorsiflexion - the foot is drawn upwards towards the leg (30 degrees)
Plantarflexion - is the movement in the opposite direction from the neutral position (50 degrees)