The sural nerve is a sensory nerve made of the fusion of the medial sural cutaneous nerve from the tibial nerve and of a communicating branch from the lateral sural cutaneous nerve from the common fibular nerve
The two sural cutaneous nerves pierce the deep fascia – together with the short saphenous vein – before the fusion that makes the sural nerve
The sural nerve descends posterior to the lateral malleolus together with the short saphenous vein
The sural nerve innervates the postero-lateral part of the skin cover of the ankle and supply calcaneal branches that innervate the lateral heel and lateral dorsal cutaneous nerves that innervate the lateral margin of the foot
