Ligament Calcaneonavicular Plantar

Plantar calcaneonavicular ligament: structure and role

The plantar calcaneonaviculare plantare ligament, abbreviated PNA or BNA, is one of the important structures in the anatomy of the human foot. It plays a significant role in maintaining the stability and functionality of the foot, and provides movement and support to the body when walking and running.

Anatomically, the plantar calcaneonavicular ligament connects the heel bone (calcaneus) and the navicular bone (naviculare) in the area of ​​the sole of the foot. It is located on the inside of the foot and has a complex structure consisting of ligamentous fibers and an articular capsule.

Functionally, the PNA ligament is a key element in maintaining the arched shape of the foot and transmitting force from the heel bone to the forefoot. Together with other ligaments and muscles of the foot, it provides stability and control of foot movement during walking and sports activities.

Damage to the plantar calcaneonavicular ligament can occur as a result of injury or overuse of the foot. This can happen with sudden movement, a fall, sports injuries, or prolonged overload of the foot. A sprained or torn PNA ligament can cause pain, swelling, limited movement, and decreased function of the foot.

To diagnose a PNA ligament injury, your doctor may perform a physical examination and, if necessary, order x-rays or other additional tests. Treatment is related to the severity of the injury and may include conservative methods such as physical therapy, orthopedic shoes or a cast, and in some cases surgery may be required.

In conclusion, the plantar calcaneonavicular ligament is an important component of foot anatomy, playing a key role in maintaining the stability and functionality of the foot. Damage to this ligament can impair movement and cause significant discomfort. If you suspect a PNA ligament injury, you should see a doctor for diagnosis and appropriate treatment to restore foot function and relieve symptoms.