Transverse tarsal joint

Diagram of the transverse tarsal joint

The transverse tarsal joint, also known as the Chopart's joint, is a compound joint in the foot that plays a crucial role in foot movement and stability. It is formed by the articulation between the talus and navicular bone on the medial side, and the calcaneus and cuboid bone on the lateral side.

Anatomy

The transverse tarsal joint is composed of two distinct joints:

• The talonavicular joint, which is the articulation between the talus and the navicular bone.
• The calcaneocuboid joint, which is the articulation between the calcaneus and the cuboid bone.

These joints are supported by several ligaments, including the bifurcate ligament, the spring ligament (also known as the plantar calcaneonavicular ligament), and the long plantar ligament.

Function

The transverse tarsal joint allows for complex movements of the foot, including inversion and eversion, which are essential for adapting to uneven surfaces and maintaining balance. It also contributes to the pronation and supination of the foot, which are important for efficient gait and shock absorption during walking and running.

Clinical Significance

Injuries to the transverse tarsal joint can result in pain and instability of the foot. Conditions such as arthritis or ligament tears can affect the function of this joint. Surgical procedures, such as arthrodesis, may be performed to stabilize the joint in cases of severe injury or deformity.

Related Pages

• Foot anatomy
• Talus bone
• Navicular bone
• Calcaneus
• Cuboid bone

References

• Gray, Henry. Anatomy of the Human Body. 20th ed. Philadelphia: Lea & Febiger, 1918.
• "Transverse Tarsal Joint." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, last modified October 2023.