Cuboideonavicular joint

Last revised by Henry Knipe on 7 Jul 2023

The cuboidenoavicular joint, an integral part of the tarsometatarsal articulations, allows for subtle rotational and gliding movements. This joint involves an articulation between the cuboid and navicular bones, forming a syndesmosis stabilized by several ligaments.

The cuboidenoavicular joint comprises an articulation between the cuboid and navicular bones. It forms a syndesmosis that is secured by various ligaments and allows for limited movements. The synovial membrane of this joint is a part of the larger tarsal synovial membrane.

This joint facilitates slight gliding and rotational movements. The action enabled by this joint is facilitated by the interaction of the fibularis longus and brevis muscles, along with the anterior and posterior tibialis muscles. The tension within the toe's flexors and extensors also contributes to these movements.

The joint is stabilized by the unification of the dorsal, plantar, and interosseous ligaments. The dorsal and plantar ligaments specifically connect the navicular bone to each cuneiform, lending structural stability to the joint.

The cuboidenoavicular joint receives its arterial supply from the dorsal pedis artery and the posterior tibial artery. These arteries branch into several medial and plantar extensions, forming the arches and contributing to the joint's blood supply.

Venous drainage is through the dorsal venous arch and plantar venous arch, which further drain into the great and small saphenous veins respectively.

The popliteal lymph nodes facilitate lymph drainage in these joints. These nodes collect lymph fluid from the joints and merge to form the deep and superficial inguinal lymph nodes.

The joint's primary innervation is provided by the medial and lateral plantar nerves. Occasionally, the joint may receive innervation from extensions of the deep fibular, sural, and intermediate dorsal cutaneous nerves.

The cuboidenoavicular joint bears body weight and facilitates movement propulsion. It plays an essential role in maintaining these functions and may be susceptible to damage in cases of fractures, dislocations, and toe osteoarthropathy.

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