Anterior Perspective of the Superficial Peroneal Nerve

Description

Running from the common fibular (peroneal) nerve near the fibular neck, the superficial peroneal nerve courses distally within the lateral compartment of the leg, closely related to the fibula on the lateral side and lying anterior to the posterior compartment musculature. As it descends, it approaches the anterior intermuscular septum and becomes superficial in the distal third of the leg before dividing into medial and intermediate dorsal cutaneous nerves over the dorsum of the foot. Bony landmarks including the femur, patella, tibia, fibula, and the tarsals, metatarsals, and phalanges anchor the nerve’s trajectory in an anterior projection. More proximal branching from the sciatic nerve into tibial and common fibular components is also represented. Surface anatomy of the superficial peroneal nerve matters because it is one of the few major lower limb nerves that predictably pierces the deep fascia in the distal leg, a common site of entrapment in chronic exertional compartment syndrome and after ankle sprain or fibular fracture. Sensory symptoms typically involve the anterolateral leg and most of the dorsum of the foot, with relative sparing of the first dorsal web space (deep fibular nerve) and the lateral margin of the foot (sural nerve). This view makes it easier to correlate dermatomal complaints with a named peripheral nerve, and to plan safe portals for ankle arthroscopy or lateral approaches that risk iatrogenic injury to superficial cutaneous branches. A practical landmark. Use this asset in gross anatomy and neuroanatomy teaching when covering the sciatic bifurcation, common fibular neuropathy, and peripheral nerve distribution in the leg and foot. It also fits orthopedic and sports medicine texts discussing ankle instability, fascial release, and nerve injury around the fibular head and lateral malleolus. Anatomical accuracy verified by SciePro's Medical Advisory Board.