Common peroneal nerve paralysis without cause?

summary

Common peroneal nerve palsy refers to a series of symptoms caused by the paralysis and atrophy of the fibular and tibial muscles caused by the injury of common peroneal nerve. The main clinical features are that the feet and toes can not be dorsiflexed, the feet droop, walking in a cross threshold gait, and the skin sensation of the dorsum of the feet is decreased or missing. Common peroneal nerve paralysis without cause? Next, I'd like to share my views with you.

Common peroneal nerve paralysis without cause?

After the common peroneal nerve was separated from the sciatic nerve in the superior popliteal angle, it descended outward along the medial edge of biceps femoris, and about 1 / 3 of the cases were covered by this muscle. The posterior common peroneal nerve passes behind the lateral head of the gastrocnemius muscle and lies in the depression between the biceps femoris tendon and the lateral edge of the gastrocnemius tendon, where it directly adheres to the fibroarticular capsule of the knee joint.

The common peroneal nerve is located behind the fibular head and around the neck of fibula. After it is close to the periosteum, it enters into the superior and middle gastrocnemius muscle, where it is divided into superficial and deep peroneal nerves. The superficial peroneal nerve is located on the dorsum of the foot and the dorsal skin of the second to fifth toes. The deep peroneal nerve reaches the dorsum of the foot through the front of the ankle joint and distributes in the dorsalis pedis muscle and the skin on the opposite edge of the back of the first to second toes.

Common peroneal nerve injury is a common clinical complication, accounting for about 15% of acute peripheral nerve injury, especially tibiofibular fracture caused by leg trauma and its treatment. It is very important to remove the factors of common peroneal nerve injury in time for the recovery of common peroneal nerve function.

matters needing attention

The function should be explored as soon as possible. If the function is not recovered, tendon transfer or ankle fusion should be performed in the late stage to correct foot drop deformity. The foot lifting appliance can be used to avoid abnormal gait caused by toe drop during walking.