Anatomically high division of sciatic nerve and its clinical significance

Background / Aim. The sciatic nerve (SN) is a mixed nerve formed in pelvis by joining of L4 - S3 anterior spinal nerve roots. SN can be under the pressure in different regions throughout its course. However, the most frequent site of impingement is under the piriformis muscle which causes the occurr...

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Main Authors: Kapor Slobodan, Puškaš Laslo, Vojvodić Aleksandar, Mališ Miloš, Bjelogrlić Predrag, Cezayirli Enis, Chisholm Fraser, Aksić Milan, Filipović Branislav
Format: Article
Language:English
Published: Military Health Department, Ministry of Defance, Serbia 2021-01-01
Series:Vojnosanitetski Pregled
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0042-8450/2021/0042-84502000031K.pdf
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author Kapor Slobodan
Puškaš Laslo
Vojvodić Aleksandar
Mališ Miloš
Bjelogrlić Predrag
Cezayirli Enis
Chisholm Fraser
Aksić Milan
Filipović Branislav
author_facet Kapor Slobodan
Puškaš Laslo
Vojvodić Aleksandar
Mališ Miloš
Bjelogrlić Predrag
Cezayirli Enis
Chisholm Fraser
Aksić Milan
Filipović Branislav
author_sort Kapor Slobodan
collection DOAJ
description Background / Aim. The sciatic nerve (SN) is a mixed nerve formed in pelvis by joining of L4 - S3 anterior spinal nerve roots. SN can be under the pressure in different regions throughout its course. However, the most frequent site of impingement is under the piriformis muscle which causes the occurrence of piriformis syndrome. High division of SN has its relevance considering the fact that it leads to the compression of nerve resulting in piriformis syndrome. The aim of this study was to determine the connection be-tween anatomical parameters of pelvis and high division of SN, which is considered to be one of the most common causes of piriformis syndrome in both genders. Methods. This study was conducted on 28 formalin fixed cadavers of both genders at the Institute of Anatomy, Faculty of Medicine, University of Belgrade (Belgrade, Serbia) and the Department of Anatomy, School of Medicine, University of St Andrews (St Andrews, United Kingdom). For the measuring of required dimensions, we used a ruler and a caliper. Results. A statistically significant difference in the values of bispinal and bituberal lines was observed. A high division of SN was found on 58.33% of the male cadavers and 80% of the female cadavers. A statistically significant difference in the mean value of the bituberal line between the male and female sex was also recognised. Conclusion. The connection between the anatomical parameters of the pelvis and the level of division of the SN is confirmed. Although on the basis of the results it could be assumed that people with smaller pelvic dimensions would have greater likelihood of developing a piriformis syndrome, the other factors, such as biomechanics related to a wider „Q angle“ in women that could result in a higher incidence of piriformis syndrome, should also be considered.
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spelling doaj.art-9394d0d89f8a49f3b01c076efaca9b192022-12-21T21:20:35ZengMilitary Health Department, Ministry of Defance, SerbiaVojnosanitetski Pregled0042-84502406-07202021-01-0178101060106410.2298/VSP200113031K0042-84502000031KAnatomically high division of sciatic nerve and its clinical significanceKapor Slobodan0https://orcid.org/0000-0002-6695-6393Puškaš Laslo1Vojvodić Aleksandar2Mališ Miloš3Bjelogrlić Predrag4Cezayirli Enis5Chisholm Fraser6Aksić Milan7Filipović Branislav8https://orcid.org/0000-0003-2168-9583University of Belgrade, Faculty of Medicine, Institute of Anatomy “Niko Miljanić”, Belgrade, SerbiaUniversity of Belgrade, Faculty of Medicine, Institute of Anatomy “Niko Miljanić”, Belgrade, SerbiaClinical Center of Zemun, Department of Orthopedic Surgery, Zemun, SerbiaUniversity of Belgrade, Faculty of Medicine, Institute of Anatomy “Niko Miljanić”, Belgrade, SerbiaUniversity of St Andrews, School of Medicine, Department of Anatomy, St Andrews, United KingdomUniversity of St Andrews, School of Medicine, Department of Anatomy, St Andrews, United KingdomUniversity of St Andrews, School of Medicine, Department of Anatomy, St Andrews, United KingdomUniversity of Belgrade, Faculty of Medicine, Institute of Anatomy “Niko Miljanić”, Belgrade, SerbiaUniversity of Belgrade, Faculty of Medicine, Institute of Anatomy “Niko Miljanić”, Belgrade, SerbiaBackground / Aim. The sciatic nerve (SN) is a mixed nerve formed in pelvis by joining of L4 - S3 anterior spinal nerve roots. SN can be under the pressure in different regions throughout its course. However, the most frequent site of impingement is under the piriformis muscle which causes the occurrence of piriformis syndrome. High division of SN has its relevance considering the fact that it leads to the compression of nerve resulting in piriformis syndrome. The aim of this study was to determine the connection be-tween anatomical parameters of pelvis and high division of SN, which is considered to be one of the most common causes of piriformis syndrome in both genders. Methods. This study was conducted on 28 formalin fixed cadavers of both genders at the Institute of Anatomy, Faculty of Medicine, University of Belgrade (Belgrade, Serbia) and the Department of Anatomy, School of Medicine, University of St Andrews (St Andrews, United Kingdom). For the measuring of required dimensions, we used a ruler and a caliper. Results. A statistically significant difference in the values of bispinal and bituberal lines was observed. A high division of SN was found on 58.33% of the male cadavers and 80% of the female cadavers. A statistically significant difference in the mean value of the bituberal line between the male and female sex was also recognised. Conclusion. The connection between the anatomical parameters of the pelvis and the level of division of the SN is confirmed. Although on the basis of the results it could be assumed that people with smaller pelvic dimensions would have greater likelihood of developing a piriformis syndrome, the other factors, such as biomechanics related to a wider „Q angle“ in women that could result in a higher incidence of piriformis syndrome, should also be considered.http://www.doiserbia.nb.rs/img/doi/0042-8450/2021/0042-84502000031K.pdfanatomy, regionalcadaverpiriformis muscle syndromesciatic nervesex characteristics
spellingShingle Kapor Slobodan
Puškaš Laslo
Vojvodić Aleksandar
Mališ Miloš
Bjelogrlić Predrag
Cezayirli Enis
Chisholm Fraser
Aksić Milan
Filipović Branislav
Anatomically high division of sciatic nerve and its clinical significance
Vojnosanitetski Pregled
anatomy, regional
cadaver
piriformis muscle syndrome
sciatic nerve
sex characteristics
title Anatomically high division of sciatic nerve and its clinical significance
title_full Anatomically high division of sciatic nerve and its clinical significance
title_fullStr Anatomically high division of sciatic nerve and its clinical significance
title_full_unstemmed Anatomically high division of sciatic nerve and its clinical significance
title_short Anatomically high division of sciatic nerve and its clinical significance
title_sort anatomically high division of sciatic nerve and its clinical significance
topic anatomy, regional
cadaver
piriformis muscle syndrome
sciatic nerve
sex characteristics
url http://www.doiserbia.nb.rs/img/doi/0042-8450/2021/0042-84502000031K.pdf
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AT malismilos anatomicallyhighdivisionofsciaticnerveanditsclinicalsignificance
AT bjelogrlicpredrag anatomicallyhighdivisionofsciaticnerveanditsclinicalsignificance
AT cezayirlienis anatomicallyhighdivisionofsciaticnerveanditsclinicalsignificance
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