The transverse tarsal joint (also known as Chopart`s joint, Chopart`s articulation, midtarsal joint, latin: articulatio tarsi transversa) is a “S” shaped joint, formed by two joints: the talonavicular and calcaneocuboid joints. It is a surgical joint named after the French surgeon François Chopart who described where the foot amputation can be done.
The calcaneocuboid joint is formed by the articulation of the calcaneus with the cuboid. The talonavicular joint is formed by the articulation of the talus with the navicular bone.
The transverse tarsal joint provides extension.