Ankle Arthrokinematics

Question 1

What are the arthrokinematics for the Tib-Fib joint during dorsiflexion/Plantar flexion

Answer 1

Dorsiflexion - Distal end Posterior glide, Proximal end Anterior glide
Plantarflexion - Distal end Anterior glide, proximal end Posterior glide

Question 2

What happens with dorsiflexion/Plantarflexion at the Talocrural joint?

Answer 2

(Convex moving on Concave)
Dorsiflexion - Anterior roll, posterior glide
Plantar Flexion- Posterior roll, Anterior glide

Question 3

What are the subtalar arthrokinematics during inversion/eversion?

Answer 3

Inversion-Calcaneus & Navicular glide medially

Eversion-Calcaneus & Navicular glide laterally

Question 4

What are the arthrokinematics for the MTP/IP joints during flexion/extension?

Answer 4

Concave on Convex
Flexion- Plantar Roll, Plantar Glide
Extension- Dorsal roll, dorsal glide

Question 5

What’s the ROM of the talocrural joint?

Answer 5

DF: 0-20 degrees
PF: 0-50 degrees

Question 6

What are the open & closed positions & capsular pattern for the talocrural joint?

Answer 6

Open: 10 degrees PF
Closed: Full DF
Capsular Pattern: PF > DF

Question 7

What are the open & closed positions & capsular pattern for the Subtalar joint?

Answer 7

Open: Pronation
Closed: Supination
Capsular Pattern: Supination > Pronation

Question 8

What are the open & closed positions & capsular pattern for the MTP joint?

Answer 8

Open: 10 degrees extension
Closed: Full extension
Capsular Pattern: Extension > Flexion (1st toe only, other toes don’t have specific capsular pattern)

Question 9

What are the open & closed positions & capsular pattern for the IP joint?

Answer 9

Open: slight flexion
Closed: Full extension
Capsular Pattern: Flexion > Extension

Question 10

What’s the ROM for the toes?

Answer 10

1st toe PIP flexion - 90 degrees
2nd-5th toe PIP flexion- 35 degrees
DIP 2nd-5th toe flexion- 60 degrees
DIP 2nd-5th toe extension- 0 degrees