alexa Variant Accessory Obturator Nerve – A Case R
ISSN: 2319-9865

Research & Reviews: Journal of Medical and Health Sciences
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Short Communication

Variant Accessory Obturator Nerve – A Case Report and Embryological Review

Rohini M1, Yogesh AS2*, Banerjee C3 and Goyal M3

1Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India.

2Department of Anatomy, Sri Aurobindo Medical College, Indore, Madhya Pradesh, India.

3Department of Anatomy, Pt. JNM Medical College, Raipur, Chhattisgarh, India

*Corresponding Author:
Yogesh AS
Department of Anatomy
Sri Aurobindo Medical College
Indore, Madhya Pradesh 452 002
Email: [email protected]
Phone no. +91 7489164644

Received: 29/09/2012 Accepted: 21/11/2012



Usually accessory obturator nerve arises from the ventral branches of the third and fourth lumbar ventral rami and passes deep to pectineus. It supplies pectineus and hip joint and then joins with the anterior division of the obturator nerve. Here, we report unilateral variation in an accessory obturator nerve on right side in an adult male cadaver. Accessory obturator nerve was found to be arising from the ventral rami of L 3 and 4. Then it entered in the femoral triangle crossing superficial to the pectinius. The accessory obturator nerve divided into three branches, one was supplying the pectineus from its superficial surface while another was supplying the hip joint. The third branch joined with the anterior division of the obturator nerve to form subsartorial plexus. On the right side, obturator nerve was found to be having its usual course except that its anterior division did not supply pectineus muscle. Clinicians should keep such variations in mind while performing hip surgeries, obturator nerve blockade and treating peripheral neuropathies


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