A rare variation in the innervation of gluteus maximus muscle – a case report

Thomas, Huban and Nayak, Vanishree S and Prasanna, LC (2015) A rare variation in the innervation of gluteus maximus muscle – a case report. Global Journal of Advanced Research, 2 (9). pp. 1394-1396. ISSN 2394-5788

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Abstract

Gluteus maximus is the largest and most superficial of the three gluteal muscles. The inferior gluteal nerve arises from the ventral divisions of the fifth lumbar and first and second sacral nerves that innervate the gluteus maximus muscle. The present report describes a rare variation in the innervation of gluteus maximus muscle. In addition to inferior gluteal nerve the gluteus maximus muscle is also supplied by a branch from sciatic nerve. Posterior femoral cutaneous nerve, two in number lies medial to the sciatic nerve, formed a plexus under the Gluteus maximus muscle and divided into its terminal branches. Gluteal branches of posterior femoral cutaneous nerve pierce the gluteus maximus muscle instead of curl around its lower border. To the best of our knowledge, there is no literature describing this kind of variation. Precise knowledge of variations of this report may help to plan a surgery in gluteal region, traumatology of the Hip joint, Hip Dislocation and total hip replacement surgery. In such case of variation in the innervation of gluteus maximus muscle causes sciatic nerve damage even during intra-muscular injections.

Item Type: Article
Uncontrolled Keywords: Gluteus maximus; inferior gluteal nerve; sciatic nerve.
Subjects: Medicine > KMC Manipal > Anatomy
Depositing User: KMC Library
Date Deposited: 22 Jan 2016 14:04
Last Modified: 22 Jan 2016 14:04
URI: http://eprints.manipal.edu/id/eprint/145130

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