The ankle joint (also talocrural joint, latin: articulatio talocruralis) is a cylindrical shaped joint that is formed by three bones: tibia, fibula and talus.
The articular surfaces of the ankle joint are the following:
The ankle joint is surrounded by an articular capsule, which attaches to the margins of the articular surfaces and also to the neck of the talus.
The bones of the ankle joint are bound together by strong ligaments:
The anterior talofibular ligament is situated between the lateral malleolus and the head of the talus.
The posterior talofibular ligament stretches between the lateral malleolus and the posterior aspect of the talus.
The calcaneofibular ligament is situated between the lateral malleolus and the lateral surface of the calcaneus.
The ankle joint permits two movements: flexion and extension of the foot.