Rare Types of Relation Between the Sciatic Nerve and the Piriformis Muscle

Kubota, Kisou; Noguchi, Isoo; Nakano, Takeo

doi:10.2535/ofaj1936.36.5_329

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…In the literature, the relative frequencies of the IGN exiting the pelvis from the upper edge of the piriformis in human adults were 1.4% (8/579) [15]; 0.4% (1/246) [ [26]; 0.9% (1/112) [27]; and 0.2% (1/257) [5]. This frequency in fetuses was 0.4% (1/240) [28]; 1.2% (2/164) [29]; 1.1% (4/364) [30]; and 2.0% (4/200) [31]. In our series, this frequency in adults was 4.26% (4/94), which was closer to that reported by Hasimoto and Toyama (1942).…”

Section: Discussionmentioning

confidence: 99%

Variations in the Course of the Inferior Gluteal Nerve and Artery: A Case Report and Literature Review

Yan¹,

Takechi²,

Hitomi³

2013

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Variations in the course of the inferior gluteal nerve and artery were observed in Japanese cases (4/94 sides). In these variation cases, the inferior gluteal nerve exited the pelvis from the upper edge of the piriformis (suprapiriformis foramen) in 4/4 sides (4.26%). In 2/4 sides (2.13%), the normal inferior gluteal artery was not observed, except that a fine artery exited the pelvis from the inferior piriformis foramen to form an "arch" with the superior gluteal artery under the gluteal maximus in 1/4 side. Moreover, in 1/4 side, a twig of the internal pudendal artery exited pelvis from inferior piriformis foramen and distributed to the surrounding tissues. The present observations of the inferior gluteal nerve and artery course are very important and useful for surgeons and nurses.

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Section: Discussionmentioning

confidence: 99%

Variations in the Course of the Inferior Gluteal Nerve and Artery: A Case Report and Literature Review

Yan¹,

Takechi²,

Hitomi³

2013

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Gluteal Muscles and Lateral Rotators of the Hip

Nicholson

Woodley

Flack

2016

Bergman's Comprehensive Encyclopedia of Human Anatomic Variation

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A Rare Variation in the High Division of the Sciatic Nerve Surrounding the Superior Gemellus Muscle

Babinski

Machado²,

Ws³

2003

European Journal of Morphology

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The sciatic nerve normally leaves the pelvis by passing through the greater sciatic foramen below piriformis. However, it may divide into its common fibular and tibial nerve components within the pelvis and its relationship with piriformis is variable. In this paper, we describe a new anatomical variation in which the common fibular nerve passed superior, and the tibial nerve inferior, to the superior gemellus muscle. Anatomical variations such as these may contribute to piriformis syndrome, coccygodynia and muscle atrophy.

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Rare Types of Relation Between the Sciatic Nerve and the Piriformis Muscle

Cited by 4 publications

References 2 publications

Variations in the Course of the Inferior Gluteal Nerve and Artery: A Case Report and Literature Review

Variations in the Course of the Inferior Gluteal Nerve and Artery: A Case Report and Literature Review

Gluteal Muscles and Lateral Rotators of the Hip

A Rare Variation in the High Division of the Sciatic Nerve Surrounding the Superior Gemellus Muscle

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