Biomechanical considerations Flashcards
1
Q
What is the ankle joint between?
A
Tibia and talus
2
Q
What is the ankle joint also known as?
A
Tibio-talar joint
Talocrural joint
3
Q
What is the normal range of motion of the ankle joint?
A
25 to 30 degrees plantarflexion
25 to 30 degrees dorsiflexion
4
Q
what is orientation of the axis of rotation of the ankle joint?
A
Inclined downwards and posteriorly on the lateral side
5
Q
What is the subtalar joint between?
A
Calcaneus and talus
6
Q
What is the purpose of the subtalar joint?
A
Inversion/eversion (allows foot to stand flat on level and uneven surfaces)
7
Q
In which condition are the ankle AND subtalar joint both normally affected?
A
Rheumatoid arthritis
8
Q
What is the average force at the ankle joint?
A
4 to 5 times BW
