Lecture 19: Tibiofibular Joints

Question 1

proximal (superior) tibiofibular joint

Answer 1

• b/w head of fib and lat epicondyle/plateau of tibia
• planar synovial
• strong capsule
• not much movement but allows slight elevation during dorsiflexion

Question 2

distal (inferior) tibiofibular joint

Answer 2

• medial surface of distal fib w/ fibular notch of tibia
• syndesmosis (amphi)
• very little movement
• stabilizes the ankle

Question 3

interosseous tibiofibular ligament

Answer 3

• runs from sup tibia to inf fibula

- allows slight elevation of fibula

Question 4

inferior transverse ligament

Answer 4

• runs from medial malleolus to lateral malleolus

- restricts posterior slide of talus

Question 5

what 3 structures form the mortise (the “backrest” of the talus)?

Answer 5

• medial malleolus
• lateral malleolus
• inf transverse ligament