Universität zu Köln

Natsis, Konstantinos, Totlis, Trifon ORCID: 0000-0001-5729-7755, Konstantinidis, George A., Paraskevas, George, Piagkou, Maria ORCID: 0000-0002-4831-8005 and Koebke, Juergen (2014). Anatomical variations between the sciatic nerve and the piriformis muscle: a contribution to surgical anatomy in piriformis syndrome. Surg. Radiol. Anat., 36 (3). S. 273 - 281. PARIS: SPRINGER FRANCE. ISSN 1279-8517

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Abstract

To detect the variable relationship between sciatic nerve and piriformis muscle and make surgeons aware of certain anatomical features of each variation that may be useful for the surgical treatment of the piriformis syndrome. The gluteal region of 147 Caucasian cadavers (294 limbs) was dissected. The anatomical relationship between the sciatic nerve and the piriformis muscle was recorded and classified according to the Beaton and Anson classification. The literature was reviewed to summarize the incidence of each variation. The sciatic nerve and piriformis muscle relationship followed the typical anatomical pattern in 275 limbs (93.6 %). In 12 limbs (4.1 %) the common peroneal nerve passed through and the tibial nerve below a double piriformis. In one limb (0.3 %) the common peroneal nerve coursed superior and the tibial nerve below the piriformis. In one limb (0.3 %) both nerves penetrated the piriformis. In one limb (0.3 %) both nerves passed above the piriformis. Four limbs (1.4 %) presented non-classified anatomical variations. When a double piriformis muscle was present, two different arrangements of the two heads were observed. Anatomical variations of the sciatic nerve around the piriformis muscle were present in 6.4 % of the limbs examined. When dissection of the entire piriformis is necessary for adequate sciatic nerve decompression, the surgeon should explore for the possible existence of a second tendon, which may be found either inferior or deep to the first one. Some rare, unclassified variations of the sciatic nerve should be expected during surgical intervention of the region.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Natsis, Konstantinos UNSPECIFIED UNSPECIFIED UNSPECIFIED Totlis, Trifon UNSPECIFIED orcid.org/0000-0001-5729-7755 UNSPECIFIED Konstantinidis, George A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Paraskevas, George UNSPECIFIED UNSPECIFIED UNSPECIFIED Piagkou, Maria UNSPECIFIED orcid.org/0000-0002-4831-8005 UNSPECIFIED Koebke, Juergen UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-441829
DOI:	10.1007/s00276-013-1180-7
Journal or Publication Title:	Surg. Radiol. Anat.
Volume:	36
Number:	3
Page Range:	S. 273 - 281
Date:	2014
Publisher:	SPRINGER FRANCE
Place of Publication:	PARIS
ISSN:	1279-8517
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language HIGH DIVISION; DIAGNOSIS; PAIN Multiple languages Anatomy & Morphology; Radiology, Nuclear Medicine & Medical Imaging; Surgery Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/44182