N. fibularis (peroneal)
- The common fibular (peroneal) nerve runs from the branching point of the sciatic nerve downward and laterally along the medial side of the biceps femoris tendon and continues around the posterior and lateral surface of the fibular head
- Below the fibular head, the nerve divides into a deep branch, N. fibularis (peroneal) profundus, and a superficial branch, N. fibularis (peroneal) superficialis
- Key point for testing the sensitivity of the deep branch between toes 1-2
Sensibility of peripheral nerves
N. fibularis (peroneal) common, nerve compression
Tinel’s test
- The nerve passes just behind the head of the fibula, 3 cm distal to the top of the fibular head.
- Tinel’s sign can reproduce paresthesia and pain over the fibular (peroneal) muscles when pressed
- The nerve can be injured in this area and cause fibular (peroneal) palsy (foot drop), i.e., weakness in dorsiflexion of the ankle