Superficial peroneal nerve


The superficial peroneal nerve innervates the peroneus longus and peroneus brevis muscles and the skin over the antero-lateral aspect of the leg along with the greater part of the dorsum of the foot.

Structure

Lateral side of the leg

Superficial peroneal nerve is the main nerve of the lateral compartment of the leg. It begins at the lateral side of the neck of fibula, and runs through the peroneal muscles. In the middle third of the leg, it descends between the peroneus longus and peroneus brevis muscles, and then reaches the anterior border of the peroneus brevis to enter the groove between the peroneus brevis and extensor digitorum longus under the deep fascia of leg. It becomes superficial at the junction of upper two-thirds and lower one-thirds of the leg by piercing the deep fascia. Superficial peroneal nerve gives off several branches in the leg.
At the junction between the upper two-thirds and lower one-thirds of the leg, superficial peroneal nerve is divided into medial dorsal cutaneous nerve and intermediate dorsal cutaneous nerve.
Injury to the nerve can result in an inability to the foot and loss of sensation over the dorsum of the foot.

Additional images