Corpus: Talocalcaneonavicular joint

The articulatio talocalcaneonavicularis is a partial joint of the ankle. The following structures are involved:

• Talus (ankle bone) as the joint head
• Calcaneus (heel bone - with the facies articularis talaris media or anterior), Os naviculare (navicular bone), as well as the cartilaginous ligamentum calcaneonaviculare plantare as joint socket

The articulatio talocalcaneonavicularis is a complex compound joint whose joint socket has four cartilage facets. From a functional point of view, the part of the joint between the talus and the navicular bone is a saddle joint that works together with the calcaneocuboid articulation. The remaining part of the joint works together with the talocalcaneal articulation.

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