A sciatic nerve with three roots and its perforation by the enlarged ischiadic artery

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Knowledge about the variations of the sciatic nerve (SN) is important for many medical science disciplines. Its compression, entrapment or injury of any kind can result in loss of sensation, pain or motor disabilities in the lower limbs. We observed concurrent neurovascular variations in the gluteal region of an adult female cadaver. The SN had three roots as it emerged out of the greater sciatic foramen. The upper root passed above the piriformis; the middle and lower roots passed below the piriformis. The three roots joined to form the SN in the gluteal region. The inferior gluteal artery (IGA) was large, and it passed below the piriformis, between the middle and lower root of the SN. After a tortuous course, this artery continued down as the sciatic/ischiadic artery. The ischiadic artery (IA) was large in size and pierced the SN in the thigh. After piercing the nerve, it terminated by dividing into muscular branches. The inferior gluteal nerve emerged out from the pelvis through the greater sciatic foramen, above the level of the piriformis. The SN in this case was highly predisposed to compression by the piriformis, IGA or IA, which in turn may lead to altered cutaneous sensation or weakness of the muscles.

Original languageEnglish
Pages (from-to)118-121
Number of pages4
JournalAnatomical Science International
Volume89
Issue number2
DOIs
Publication statusPublished - 03-2014

Fingerprint

Sciatic Nerve
Arteries
Buttocks
Muscle Weakness
Thigh
Pelvis
Cadaver
Lower Extremity
Pain
Skin
Wounds and Injuries

All Science Journal Classification (ASJC) codes

  • Anatomy

Cite this

@article{81ad5022c7c44b2fae37dc23eb2f094d,
title = "A sciatic nerve with three roots and its perforation by the enlarged ischiadic artery",
abstract = "Knowledge about the variations of the sciatic nerve (SN) is important for many medical science disciplines. Its compression, entrapment or injury of any kind can result in loss of sensation, pain or motor disabilities in the lower limbs. We observed concurrent neurovascular variations in the gluteal region of an adult female cadaver. The SN had three roots as it emerged out of the greater sciatic foramen. The upper root passed above the piriformis; the middle and lower roots passed below the piriformis. The three roots joined to form the SN in the gluteal region. The inferior gluteal artery (IGA) was large, and it passed below the piriformis, between the middle and lower root of the SN. After a tortuous course, this artery continued down as the sciatic/ischiadic artery. The ischiadic artery (IA) was large in size and pierced the SN in the thigh. After piercing the nerve, it terminated by dividing into muscular branches. The inferior gluteal nerve emerged out from the pelvis through the greater sciatic foramen, above the level of the piriformis. The SN in this case was highly predisposed to compression by the piriformis, IGA or IA, which in turn may lead to altered cutaneous sensation or weakness of the muscles.",
author = "Nayak, {Satheesha B.} and George, {Bincy M.} and Snigdha Mishra",
year = "2014",
month = "3",
doi = "10.1007/s12565-013-0198-6",
language = "English",
volume = "89",
pages = "118--121",
journal = "Anatomical Science International",
issn = "1447-6959",
publisher = "American Orthopsychiatric Association Inc.",
number = "2",

}

TY - JOUR

T1 - A sciatic nerve with three roots and its perforation by the enlarged ischiadic artery

AU - Nayak, Satheesha B.

AU - George, Bincy M.

AU - Mishra, Snigdha

PY - 2014/3

Y1 - 2014/3

N2 - Knowledge about the variations of the sciatic nerve (SN) is important for many medical science disciplines. Its compression, entrapment or injury of any kind can result in loss of sensation, pain or motor disabilities in the lower limbs. We observed concurrent neurovascular variations in the gluteal region of an adult female cadaver. The SN had three roots as it emerged out of the greater sciatic foramen. The upper root passed above the piriformis; the middle and lower roots passed below the piriformis. The three roots joined to form the SN in the gluteal region. The inferior gluteal artery (IGA) was large, and it passed below the piriformis, between the middle and lower root of the SN. After a tortuous course, this artery continued down as the sciatic/ischiadic artery. The ischiadic artery (IA) was large in size and pierced the SN in the thigh. After piercing the nerve, it terminated by dividing into muscular branches. The inferior gluteal nerve emerged out from the pelvis through the greater sciatic foramen, above the level of the piriformis. The SN in this case was highly predisposed to compression by the piriformis, IGA or IA, which in turn may lead to altered cutaneous sensation or weakness of the muscles.

AB - Knowledge about the variations of the sciatic nerve (SN) is important for many medical science disciplines. Its compression, entrapment or injury of any kind can result in loss of sensation, pain or motor disabilities in the lower limbs. We observed concurrent neurovascular variations in the gluteal region of an adult female cadaver. The SN had three roots as it emerged out of the greater sciatic foramen. The upper root passed above the piriformis; the middle and lower roots passed below the piriformis. The three roots joined to form the SN in the gluteal region. The inferior gluteal artery (IGA) was large, and it passed below the piriformis, between the middle and lower root of the SN. After a tortuous course, this artery continued down as the sciatic/ischiadic artery. The ischiadic artery (IA) was large in size and pierced the SN in the thigh. After piercing the nerve, it terminated by dividing into muscular branches. The inferior gluteal nerve emerged out from the pelvis through the greater sciatic foramen, above the level of the piriformis. The SN in this case was highly predisposed to compression by the piriformis, IGA or IA, which in turn may lead to altered cutaneous sensation or weakness of the muscles.

UR - http://www.scopus.com/inward/record.url?scp=84896704242&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84896704242&partnerID=8YFLogxK

U2 - 10.1007/s12565-013-0198-6

DO - 10.1007/s12565-013-0198-6

M3 - Article

VL - 89

SP - 118

EP - 121

JO - Anatomical Science International

JF - Anatomical Science International

SN - 1447-6959

IS - 2

ER -