Musculoskeletal: Lower Extremity: Talocrural Joint: Osteokinematics and Arthrokinematics

Question 1

Talocrural Joint

Osteokinematic: Plantarflexion

Answer 1

• Arthrokinematics of the talocrural joint during plantarflexion in the open kinetic chain
• In the open kinetic chain the the convex talus will roll POSTERIOR and glide ANTERIOR on the concave Tibia.
• Arthrokinematics of the talocrural joint during plantarflexion in a closed kinetic chain.
• In the closed kinetic chain the concave tibia will roll and glide POSTERIORLY on the convex Talus.

Question 2

Talocrural Joint

Osteokinematic: Dorsiflexion

Answer 2

• Arthrokinematics of the talocrural joint during dorsiflexion in the open kinetic chain
• In the open kinetic chain the the convex talus will roll ANTERIOR and glide POSTERIOR on the concave Tibia.
• Arthrokinematics of the talocrural joint during dorsiflexion in a closed kinetic chain.
• In the closed kinetic chain the concave tibia will roll and glide ANTERIORLY on the convex Talus.