What is the anatomy of the plantar and digital nerves in nerve entrapment syndromes of the lower extremity?

Updated: Oct 15, 2019
  • Author: Minoo Hadjari Hollis, MD; Chief Editor: Thomas M DeBerardino, MD  more...
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Answer

The common digital nerves originate from the medial and lateral plantar nerves. The medial plantar nerve divides into three common digital nerves, which in turn bifurcate, supplying cutaneous branches to the medial three and one half digits. The lateral plantar nerve gives rise to two common digital nerves, which supply cutaneous branches to the lateral one and one half digits. As the common digital nerves travel distally, they pass plantar to the transverse intermetatarsal ligament.

Substantial variability has been noted in the cutaneous innervation of the webspace and of the plantar aspect of the foot adjacent to the webspace.


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