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Two variant muscles in the gluteal region
Affiliations- Department of Anatomical Dissection and Donation, Medical University of Lodz, Poland
- Department of Anatomical Sciences, St. George’s University, Grenada, West Indies
- Department of Neurosurgery, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Department of Neurology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Department of Surgery, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Department of Neurosurgery, Ochsner Medical Centre, New Orleans, Louisiana, United States
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Abstract
The short lateral rotators of the thigh found in the gluteal region can have morphological variations. During anatomical dissection of a right lower limb, two variant structures were found in this region. The first of these accessory muscles originated from the external surface of the ramus of the ischium. Distally, it was fused with the gemellus inferior muscle. The second structure comprised tendinous and muscular parts. The proximal part originated from the external part of the ischiopubic ramus. It inserted on the trochanteric fossa. Both structures were innervated by small branches of the obturator nerve. The blood supply was via branches of the inferior gluteal artery. There was also a connection between the quadratus femoris and the superior part of the adductor magnus. These morphological variants could be clinically important.
Abstract
The short lateral rotators of the thigh found in the gluteal region can have morphological variations. During anatomical dissection of a right lower limb, two variant structures were found in this region. The first of these accessory muscles originated from the external surface of the ramus of the ischium. Distally, it was fused with the gemellus inferior muscle. The second structure comprised tendinous and muscular parts. The proximal part originated from the external part of the ischiopubic ramus. It inserted on the trochanteric fossa. Both structures were innervated by small branches of the obturator nerve. The blood supply was via branches of the inferior gluteal artery. There was also a connection between the quadratus femoris and the superior part of the adductor magnus. These morphological variants could be clinically important.
Keywords
pelvic region, morphological variations, gluteus inferior, gluteus superior, quadratus femoris, sciatic nerve, adductor minimus, adductor magnus
About this articleTitle
Two variant muscles in the gluteal region
Journal
Issue
Vol 83, No 1 (2024): Folia Morphologica
Article type
Case report
Pages
235-238
Published online
2023-02-16
Page views
495
Article views/downloads
431
DOI
Pubmed
Bibliographic record
Folia Morphol 2024;83(1):235-238.
Keywords
pelvic region
morphological variations
gluteus inferior
gluteus superior
quadratus femoris
sciatic nerve
adductor minimus
adductor magnus
Authors
Nicol Zielinska
Richard Shane Tubbs
Piotr Łabętowicz
Łukasz Olewnik
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