Calcaneus (Superior and posterior view) (English)

The superior view of the calcaneus presents with a number of articular surfaces which participate in the formation of the joints of the foot and ankle. One of them is the posterior talar articular surface, located along the dorsal surface of the calcaneus. It represents one of the three surfaces on the calcaneus that articulate with the talus, with the other two being the anterior and middle talar articular surfaces, which can be observed anteromedially. The large calcaneal tuberosity forms the heel of the foot and is the attachment site for the long calcaneal tendon. The inferior aspect of the calcaneal tuberosity presents with a medial and lateral process, which are important attachment points for the muscles of the foot. From the posterior view, the sustentaculum tali can also be observed. This is a large shelf-like projection found along the posteromedial aspect of the calcaneus. It supports the head of the talus and contains the groove for the flexor hallucis longus muscle on its inferior surface.