Lateral cornus

Lateral Cornus

The lateral cornus, also known as the lateral cuneiform bone, is one of the seven tarsal bones located in the foot. It is situated on the medial side of the foot, between the intermediate cuneiform bone and the cuboid bone. The lateral cornus plays a crucial role in maintaining the structure and function of the foot.

Anatomy

The lateral cornus is a wedge-shaped bone that articulates with multiple bones in the foot. It has six surfaces: superior, inferior, medial, lateral, anterior, and posterior. The superior surface of the lateral cornus articulates with the navicular bone, while the inferior surface articulates with the cuboid bone. The medial surface forms a joint with the intermediate cuneiform bone, and the lateral surface articulates with the fourth metatarsal bone. The anterior and posterior surfaces of the lateral cornus provide attachment sites for ligaments and tendons.

Function

The lateral cornus plays a vital role in maintaining the stability and flexibility of the foot. It helps to support the arches of the foot and distribute the weight during walking, running, and other weight-bearing activities. The articulations between the lateral cornus and the neighboring bones allow for smooth movements and proper alignment of the foot.

Clinical Significance

Injuries to the lateral cornus can occur due to trauma or overuse. Common injuries include fractures, sprains, and ligament tears. These injuries can cause pain, swelling, instability, and difficulty in walking. Treatment options for lateral cornus injuries may include rest, immobilization, physical therapy, and in severe cases, surgical intervention.

See Also

• Tarsal Bones
• Cuboid Bone
• Intermediate Cuneiform Bone
• Navicular Bone
• Metatarsal Bones