Obturator Nerve

  • Amgad S. Hanna


The obturator nerve arises from the anterior division of L2–L4 ventral rami. It courses medial to the psoas major muscle, along the sidewall of the pelvis, with the internal iliac vessels. It exits the pelvis through the obturator canal in the upper part of the obturator foramen, where it divides into anterior and posterior divisions. The anterior division passes above the obturator externus and then in between the adductor brevis posteriorly and pectineus and the adductor longus anteriorly. The posterior division passes through the obturator externus and then between the adductor brevis and the adductor magnus. The anterior division supplies the adductor longus, adductor brevis, and gracilis muscles. The posterior division supplies the obturator externus and adductor part of the adductor magnus. They also have articular branches and cutaneous branches that supply the medial aspect of the thigh.


Cerebral Palsy Cutaneous Branch Gracilis Muscle Obturator Nerve Longus Tendon 
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Supplementary material

Video 21.1

(MP4 894706 kb)


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    Campbell AA, Eckhauser FE, Belzberg A, Campbell JN (2010) Obturator nerve transfer as an option for femoral nerve repair: case report. Neurosurgery 66(ons2):E375Google Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Amgad S. Hanna
    • 1
  1. 1.Department of NeurosurgeryUniversity of WisconsinMadisonUSA

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