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. 2024 Jun 28;39(2):136-139.
doi: 10.4274/MMJ.galenos.2024.83652.

The Dual Innervation of the Gluteus Maximus Associated with Other Anatomical Variations of the Gluteal Region

Punnapa Raviteja  1 , Mrudula Chandrupatla  1 , Alka V Bhingardeo  1 , Surraj Susai  1
Affiliations

The Dual Innervation of the Gluteus Maximus Associated with Other Anatomical Variations of the Gluteal Region

Punnapa Raviteja et al. Medeni Med J. .

Abstract
in English, Turkish

The gluteus maximus (GM) is a big quadrilateral musculature that lines the rear portion of the pelvis. It is innervated by the inferior gluteal nerve. The sciatic nerve, inferior gluteal nerve, and posterior cutaneous nerve of the thigh are branches of the sacral plexus. The superior and inferior gluteal arteries are the chief arterial supply to the gluteal region. In the present case, there was a dual innervation of the GM. The superior gluteal artery and the superior gluteal nerve was piercing the piriformis and the inferior gluteal artery was running between the posterior cutaneous nerve of the thigh and the inferior gluteal nerve. According to our literature review, anatomical studies in which this cadaveric procedure has been performed have not been previously reported. The anatomical variations of the gluteal region are important to surgeons, physicians, anatomists, and nurses.

Gluteus maksimus (GM) pelvisin arka kısmını kaplayan büyük bir dörtgen kas sistemidir. İnferior gluteal sinir tarafından innerve edilir. Siyatik sinir, inferior gluteal sinir ve uyluğun posterior kutanöz siniri sakral pleksusun dallarıdır. Süperior ve inferior gluteal arterler gluteal bölgenin başlıca arteriyel beslenmesidir. Mevcut olguda, GM ve superior gluteal arterin ikili bir innervasyonu vardı. Superior gluteal sinir piriformisi delmekte ve inferior gluteal arter uyluğun posterior kutanöz siniri ile inferior gluteal sinir arasında seyretmekteydi. Literatür taramamıza göre, bu kadavra prosedürünün uygulandığı anatomik çalışmalar daha önce bildirilmemiştir. Gluteal bölgenin anatomik varyasyonları cerrahlar, hekimler, anatomistler ve hemşireler için önemlidir.

Keywords: Gluteus maximus; cadaver; dual innervation; piriformis; sciatic nerve.

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Conflict of interest statement

Conflict of Interest: The authors have no conflict of interest to declare.

Figures

Figure 1
Figure 1
Shows the dual innervation of the gluteus maximus (GM) and the inferior gluteal artery passing between two nerves. IGM: Inferolateral part of the gluteus maximus, SGM: Superomedial part of the gluteus maximus, IGN: Inferior gluteal nerve, ASN: Abnormal branch of the sciatic nerve, SN: Sciatic nerve, PCNT: The posterior cutaneous nerve of the thigh, IGA: Inferior gluteal artery, P: Piriformis
Figure 2
Figure 2
Shows the schematic diagram of the dual innervation of the gluteus maximus (GM). IGM: Inferolateral part of the gluteus maximus, SGM: Superomedial part of the gluteus maximus, IGN: Inferior gluteal nerve, ASN: Abnormal branch of the sciatic nerve, SN: Sciatic nerve, PCNT: The posterior cutaneous nerve of the thigh, IGA: Inferior gluteal artery
Figure 3
Figure 3
Shows the superior gluteal artery (SGA) and the superior gluteal nerve (SGN) piercing the piriformis. P: Piriformis, SGM: Superomedial part of the gluteus maximus, G.Med: Gluteus medius, SGA: Superior gluteal artery, SGN: Superior gluteal nerve, IGA: Inferior gluteal artery, ASN: Abnormal branch of the sciatic nerve
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