Posterior talofibular ligament
Encyclopedia
The posterior talofibular ligament, runs almost horizontally from the depression at the medial and back part of the fibular malleolus (lateral malleolus) to a prominent tubercle on the posterior surface of the talus
immediately lateral to the groove for the tendon of the flexor hallucis longus.
Talus bone
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immediately lateral to the groove for the tendon of the flexor hallucis longus.