Arthrology: Ligaments of Foot and Ankle

Question 1

Talocrural fibrous capsule

Answer 1

attachments- from the borders of the articular surfaces of tibia & malleoli to the margins of the trochlear surface of the talus

Question 2

Medial collateral (deltoid)

Answer 2

attachments- from the medial malleolus to the talus, navicular & sustentaculum tali of the calcaneus

function- stabilizes joint & resists forced eversion

Question 3

Posterior talofibular

Answer 3

Attachments- malleolar fossa of the fibula to the lateral tubercle of the talus

Function – restrict talocrural inversion

Question 4

Calcaneofibular

Answer 4

Attachments – tip of the lateral malleolus to the lateral surface of the calcaneus

Function – resist calcaneal/subtalar inversion

Question 5

Anterior talofibular

Answer 5

Attachments - anterior lateral malleolus of the fibula to the neck of the talus

Function – resist talocrural inversion and resist anterior translation of the talus

Question 6

Long plantar

Answer 6

attachments- from the plantar surface of the calcaneus & cuboid to the plantar surface of the bases of the metatarsals

Question 7

Plantar calcaneocuboid

Answer 7

(aka “short plantar lig.”)

attachments- from calcaneus to the plantar surface of the cuboid

Question 8

Plantar calcaneonavicular

Answer 8

(aka “spring lig.”)

attachments- from the anterior margin of the sustentaculum tali to the plantar surface of the navicular

function- supports the medial longitudinal arch of the foot