Sciatic Nerve High Division: Two Different Anatomical Variants
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/21643 |
Resumo: | Introduction: Sciatic nerve variations are relatively common. These variations are often very significant in several fields of Medicine. The purpose of this paper is to present two such variants and discuss their clinical implications. Material and Methods: Three Caucasian cadavers with no prior history of lower limb trauma or surgery were dissected and found to present anatomical variants of the sciatic nerve. Results: In all cases the sciatic nerve divided above the popliteal fossa. In two cases (cadavers 1 and 2) it divided on both sides in the inferior portion of the gluteal region in its two terminal branches: the common fibular and the tibial nerves. In another case (cadaver 3) the sciatic nerve was found to divide inside the pelvis just before coursing the greater sciatic notch. The common fibular nerve exited the pelvis above the pyriformis muscle and then passed along its posterior aspect, while the tibial nerve coursed deep to the pyriformis muscle. Discussion: According to the literature, the anatomical variant described in cadaver 3 is considered relatively rare. This variant can predispose to nerve entrapment and thus to the pyriformis syndrome, sciatica and coccygodynia. The high division of the sciatic nerve, as presented in cadavers 1 and 2, can make popliteal nerve blocks partially ineffective. Conclusion: The anatomical variants associated with a high division of the sciatic nerve, must always be born in mind, as they are relatively prevalent, and have important clinical implications, namely in Anesthesiology, Neurology, Sports Medicine and Surgery. |
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Sciatic Nerve High Division: Two Different Anatomical VariantsPALSYMUSCLEPIRIFORMIS SYNDROMESciatic Nerve/anatomy and histologyPOPLITEAL FOSSATOTAL HIP-ARTHROPLASTYIntroduction: Sciatic nerve variations are relatively common. These variations are often very significant in several fields of Medicine. The purpose of this paper is to present two such variants and discuss their clinical implications. Material and Methods: Three Caucasian cadavers with no prior history of lower limb trauma or surgery were dissected and found to present anatomical variants of the sciatic nerve. Results: In all cases the sciatic nerve divided above the popliteal fossa. In two cases (cadavers 1 and 2) it divided on both sides in the inferior portion of the gluteal region in its two terminal branches: the common fibular and the tibial nerves. In another case (cadaver 3) the sciatic nerve was found to divide inside the pelvis just before coursing the greater sciatic notch. The common fibular nerve exited the pelvis above the pyriformis muscle and then passed along its posterior aspect, while the tibial nerve coursed deep to the pyriformis muscle. Discussion: According to the literature, the anatomical variant described in cadaver 3 is considered relatively rare. This variant can predispose to nerve entrapment and thus to the pyriformis syndrome, sciatica and coccygodynia. The high division of the sciatic nerve, as presented in cadavers 1 and 2, can make popliteal nerve blocks partially ineffective. Conclusion: The anatomical variants associated with a high division of the sciatic nerve, must always be born in mind, as they are relatively prevalent, and have important clinical implications, namely in Anesthesiology, Neurology, Sports Medicine and Surgery.NOVA Medical School|Faculdade de Ciências Médicas (NMS|FCM)RUNO'Neill, JoãoFurtado, AndreaBilhim, TiagoPires, Maria BettencourtPais, DiogoCasal, Diogo2017-06-21T22:00:54Z2013-052013-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article4application/pdfhttp://hdl.handle.net/10362/21643eng1646-0758PURE: 286308info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:08:32Zoai:run.unl.pt:10362/21643Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:26:54.503800Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Sciatic Nerve High Division: Two Different Anatomical Variants |
title |
Sciatic Nerve High Division: Two Different Anatomical Variants |
spellingShingle |
Sciatic Nerve High Division: Two Different Anatomical Variants O'Neill, João PALSY MUSCLE PIRIFORMIS SYNDROME Sciatic Nerve/anatomy and histology POPLITEAL FOSSA TOTAL HIP-ARTHROPLASTY |
title_short |
Sciatic Nerve High Division: Two Different Anatomical Variants |
title_full |
Sciatic Nerve High Division: Two Different Anatomical Variants |
title_fullStr |
Sciatic Nerve High Division: Two Different Anatomical Variants |
title_full_unstemmed |
Sciatic Nerve High Division: Two Different Anatomical Variants |
title_sort |
Sciatic Nerve High Division: Two Different Anatomical Variants |
author |
O'Neill, João |
author_facet |
O'Neill, João Furtado, Andrea Bilhim, Tiago Pires, Maria Bettencourt Pais, Diogo Casal, Diogo |
author_role |
author |
author2 |
Furtado, Andrea Bilhim, Tiago Pires, Maria Bettencourt Pais, Diogo Casal, Diogo |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
NOVA Medical School|Faculdade de Ciências Médicas (NMS|FCM) RUN |
dc.contributor.author.fl_str_mv |
O'Neill, João Furtado, Andrea Bilhim, Tiago Pires, Maria Bettencourt Pais, Diogo Casal, Diogo |
dc.subject.por.fl_str_mv |
PALSY MUSCLE PIRIFORMIS SYNDROME Sciatic Nerve/anatomy and histology POPLITEAL FOSSA TOTAL HIP-ARTHROPLASTY |
topic |
PALSY MUSCLE PIRIFORMIS SYNDROME Sciatic Nerve/anatomy and histology POPLITEAL FOSSA TOTAL HIP-ARTHROPLASTY |
description |
Introduction: Sciatic nerve variations are relatively common. These variations are often very significant in several fields of Medicine. The purpose of this paper is to present two such variants and discuss their clinical implications. Material and Methods: Three Caucasian cadavers with no prior history of lower limb trauma or surgery were dissected and found to present anatomical variants of the sciatic nerve. Results: In all cases the sciatic nerve divided above the popliteal fossa. In two cases (cadavers 1 and 2) it divided on both sides in the inferior portion of the gluteal region in its two terminal branches: the common fibular and the tibial nerves. In another case (cadaver 3) the sciatic nerve was found to divide inside the pelvis just before coursing the greater sciatic notch. The common fibular nerve exited the pelvis above the pyriformis muscle and then passed along its posterior aspect, while the tibial nerve coursed deep to the pyriformis muscle. Discussion: According to the literature, the anatomical variant described in cadaver 3 is considered relatively rare. This variant can predispose to nerve entrapment and thus to the pyriformis syndrome, sciatica and coccygodynia. The high division of the sciatic nerve, as presented in cadavers 1 and 2, can make popliteal nerve blocks partially ineffective. Conclusion: The anatomical variants associated with a high division of the sciatic nerve, must always be born in mind, as they are relatively prevalent, and have important clinical implications, namely in Anesthesiology, Neurology, Sports Medicine and Surgery. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-05 2013-05-01T00:00:00Z 2017-06-21T22:00:54Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/21643 |
url |
http://hdl.handle.net/10362/21643 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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1646-0758 PURE: 286308 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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4 application/pdf |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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