What does the superficial branch of the common fibular nerve innervate?

What does the superficial branch of the common fibular nerve innervate?

Superficial fibular nerve: Innervates the muscles of the lateral compartment of the leg; fibularis longus and brevis. These muscles act to evert the foot. Deep fibular nerve: Innervates the muscles of the anterior compartment of the leg; tibialis anterior, Extensor Digitorum Longus and extensor hallucis longus.

Does the common fibular nerve cause foot drop?

In long-standing or severe circumstances, common peroneal nerve compression can lead to weakness and a foot drop. Sometimes patient interpret this weakness as clumsiness while walking. Symptoms may worsen with prolonged standing, walking, exercising, or during sleep.

What happens if the superficial fibular nerve is damaged?

This nerve also controls the muscles in the leg that lift the ankle and toes upward. Injuries to the peroneal nerve can cause numbness, tingling, pain, weakness and a gait problem called foot drop.

What nerves are involved in foot drop?

Most commonly, foot drop is caused by an injury to the peroneal nerve. The peroneal nerve is a branch of the sciatic nerve that wraps from the back of the knee to the front of the shin. Because it sits very close to the surface, it may be damaged easily.

What does the superficial peroneal nerve supply?

The superficial fibular nerve (also known as superficial peroneal nerve) innervates the fibularis longus and fibularis brevis muscles and the skin over the antero-lateral aspect of the leg along with the greater part of the dorsum of the foot (with the exception of the first web space, which is innervated by the deep …

What is the function of superficial peroneal nerve?

It’s a terminal branch of the common peroneal nerve, which itself is a branch of the sciatic nerve. The superficial peroneal nerve contains both motor and sensory fibers, meaning it provides both motion and sensation.

What are the causes of common fibular nerve injury?


  • Trauma or injury to the knee.
  • Fracture of the fibula (a bone of the lower leg)
  • Use of a tight plaster cast (or other long-term constriction) of the lower leg.
  • Crossing the legs regularly.
  • Regularly wearing high boots.
  • Pressure to the knee from positions during deep sleep or coma.

How do you test the superficial fibular nerve?

To test for the motor involvement of the superficial peroneal nerve and deep peroneal nerve, one must assess foot eversion (SPN) and foot/toe dorsiflexion (DPN). A finding of weakness of both foot eversion as well as foot/toe dorsiflexion suggests a lesion involving the common peroneal nerve.

Where is the common fibular nerve?

popliteal fossa
The common fibular nerve runs obliquely downward along the lateral border of the popliteal fossa (medial to biceps femoris) before branching, at the neck of the fibula, into the deep fibular and superficial fibular nerve. It lies between the tendon of the biceps femoris and the lateral head of the gastrocnemius.

What is the fibular nerve?

The common fibular nerve (also known as the common peroneal nerve, external popliteal nerve, or lateral popliteal nerve) is a nerve in the lower leg that provides sensation over the posterolateral part of the leg and the knee joint.