Lateral compartment

nerves

Superficial peroneal nerve

· begins in substance of peroneus longus

· at division of common peroneal nerve

· passes downwards in muscle

· emerges from its anterior border behind anterior intermuscular septum

· pierces deep fascia halfway down leg

· divides into medial and lateral branches

· supplies skin on anterolateral leg and foot

· supplies muscles of lateral compartment

· PL

· PB

muscles

Peroneus longus

Origin

· upper 2/3 of peroneal surface of fibula

· superior tibiofibular joint

Path

· tendon lies behind that of PB

· does not contact malleolus

· passes below peroneal trochlea

Insertion

· base of MT I (and medial cuneiform)

Peroneus brevis

Origin

· lower 2/3 of peroneal surface fibula

· in front of PL

Path

· tendon lies in front of that of PL

· lies behind and grooves lateral malleolus

· passes above peroneal trochlea

Insertion

· base of MT V