The deep peroneal nerve is the deep branch of the common peroneal nerve.

It supplies the extensor muscles of the front of the lower limb that allow the foot to left up, and also suppies sensation to the ankle and the area of the web between the big toe and the second toe.
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CLINICAL PUBLICATIONS
Treatment of peroneal nerve injuries with simultaneous tendon transfer and nerve exploration. Ho B, Khan Z, Switaj PJ, Ochenjele G, Fuchs D, Dahl W, Cederna P, Kung TA and Kadakia AR. J Orthop Surg Res. 2014; 9: 67.