Understanding the Calcaneonavicular Joint in the Foot

Calcaneonavicular refers to the joint formed by the union of the calcaneus (heel bone) and the navicular bone in the foot. This joint is located on the inner side of the foot, just above the arch. It is a relatively small joint that plays an important role in weight-bearing activities such as walking and running.

The calcaneonavicular joint is surrounded by ligaments that help to stabilize it and allow for proper movement. The joint itself is covered with cartilage, which helps to absorb shock and reduce friction between the bones.

One of the main functions of the calcaneonavicular joint is to facilitate the transfer of weight from the heel to the forefoot during gait. As the foot rolls forward during walking or running, the weight is transferred from the heel to the ball of the foot, and this joint plays a key role in this process.

Overall, the calcaneonavicular joint is an important structure in the foot that helps to support the body's weight and facilitate movement.