What joints make up the midtarsal joint?

The midtarsal joint, also known as the Chopart joint, is specifically formed by two key joints: the talonavicular joint and the calcaneocuboid joint. These joints work together to provide significant mobility and flexibility to the foot, allowing for the adjustment of the foot's position during various activities such as walking and running.

The talonavicular joint is a ball-and-socket joint that connects the talus bone to the navicular bone, while the calcaneocuboid joint connects the calcaneus and cuboid bones. The unique structure of these joints contributes to the midtarsal joint's ability to adapt to uneven surfaces and to perform necessary foot functions, such as shock absorption and propulsion.

Understanding the composition of the midtarsal joint is crucial for professionals in orthotics and prosthetics, as it helps in the design of devices that accommodate foot movements and support the biomechanical functions of the foot.