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The variable morphology of suprascapular nerve and vessels at suprascapular notch: a proposal for classification and its potential clinical implications

PURPOSE: The most common place for suprascapular nerve entrapment is the suprascapular notch. The aim of the study was to determine the morphological variation of the location of the suprascapular nerve, artery and vein, and measure the reduction in size of the suprascapular opening in each type of...

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Autores principales: Polguj, Michał, Rożniecki, Jacek, Sibiński, Marcin, Grzegorzewski, Andrzej, Majos, Agata, Topol, Mirosław
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4555201/
https://www.ncbi.nlm.nih.gov/pubmed/24633009
http://dx.doi.org/10.1007/s00167-014-2937-1
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author Polguj, Michał
Rożniecki, Jacek
Sibiński, Marcin
Grzegorzewski, Andrzej
Majos, Agata
Topol, Mirosław
author_facet Polguj, Michał
Rożniecki, Jacek
Sibiński, Marcin
Grzegorzewski, Andrzej
Majos, Agata
Topol, Mirosław
author_sort Polguj, Michał
collection PubMed
description PURPOSE: The most common place for suprascapular nerve entrapment is the suprascapular notch. The aim of the study was to determine the morphological variation of the location of the suprascapular nerve, artery and vein, and measure the reduction in size of the suprascapular opening in each type of the passage. METHODS: A total of 106 human formalin-fixed cadaveric shoulders were included in the study. After dissection of the suprascapular region, the topography of the suprascapular nerve, artery and vein was evaluated. Additionally, the area of the suprascapular opening was measured using professional image analysis software. RESULTS: Four arrangements of the suprascapular vein, artery and nerve were distinguished with regard to the superior transverse scapular ligament: type I (61.3 %) (suprascapular artery was running above ligament, while suprascapular vein and nerve below it), type II (17 %) (both vessels pass above ligament, while nerve passes under it), type III (12.3 %) (suprascapular vessels and nerve lie under ligament) and type IV (9.4 %), which comprises the other variants of these structures. Statistically significant differences regarding the suprascapular opening were observed between the specimens with types II and III. Anterior coracoscapular ligaments were present in 55 from 106 shoulders. CONCLUSION: The morphological variations described in this study are necessary to better understand the possible anatomical conditions which may promote suprascapular nerve entrapment (especially type III). They may be useful during open and endoscopic procedures at the suprascapular notch to prevent such complications as unexpected bleeding.
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spelling pubmed-45552012015-09-04 The variable morphology of suprascapular nerve and vessels at suprascapular notch: a proposal for classification and its potential clinical implications Polguj, Michał Rożniecki, Jacek Sibiński, Marcin Grzegorzewski, Andrzej Majos, Agata Topol, Mirosław Knee Surg Sports Traumatol Arthrosc Shoulder PURPOSE: The most common place for suprascapular nerve entrapment is the suprascapular notch. The aim of the study was to determine the morphological variation of the location of the suprascapular nerve, artery and vein, and measure the reduction in size of the suprascapular opening in each type of the passage. METHODS: A total of 106 human formalin-fixed cadaveric shoulders were included in the study. After dissection of the suprascapular region, the topography of the suprascapular nerve, artery and vein was evaluated. Additionally, the area of the suprascapular opening was measured using professional image analysis software. RESULTS: Four arrangements of the suprascapular vein, artery and nerve were distinguished with regard to the superior transverse scapular ligament: type I (61.3 %) (suprascapular artery was running above ligament, while suprascapular vein and nerve below it), type II (17 %) (both vessels pass above ligament, while nerve passes under it), type III (12.3 %) (suprascapular vessels and nerve lie under ligament) and type IV (9.4 %), which comprises the other variants of these structures. Statistically significant differences regarding the suprascapular opening were observed between the specimens with types II and III. Anterior coracoscapular ligaments were present in 55 from 106 shoulders. CONCLUSION: The morphological variations described in this study are necessary to better understand the possible anatomical conditions which may promote suprascapular nerve entrapment (especially type III). They may be useful during open and endoscopic procedures at the suprascapular notch to prevent such complications as unexpected bleeding. Springer Berlin Heidelberg 2014-03-18 2015 /pmc/articles/PMC4555201/ /pubmed/24633009 http://dx.doi.org/10.1007/s00167-014-2937-1 Text en © The Author(s) 2014 https://creativecommons.org/licenses/by/4.0/ Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
spellingShingle Shoulder
Polguj, Michał
Rożniecki, Jacek
Sibiński, Marcin
Grzegorzewski, Andrzej
Majos, Agata
Topol, Mirosław
The variable morphology of suprascapular nerve and vessels at suprascapular notch: a proposal for classification and its potential clinical implications
title The variable morphology of suprascapular nerve and vessels at suprascapular notch: a proposal for classification and its potential clinical implications
title_full The variable morphology of suprascapular nerve and vessels at suprascapular notch: a proposal for classification and its potential clinical implications
title_fullStr The variable morphology of suprascapular nerve and vessels at suprascapular notch: a proposal for classification and its potential clinical implications
title_full_unstemmed The variable morphology of suprascapular nerve and vessels at suprascapular notch: a proposal for classification and its potential clinical implications
title_short The variable morphology of suprascapular nerve and vessels at suprascapular notch: a proposal for classification and its potential clinical implications
title_sort variable morphology of suprascapular nerve and vessels at suprascapular notch: a proposal for classification and its potential clinical implications
topic Shoulder
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4555201/
https://www.ncbi.nlm.nih.gov/pubmed/24633009
http://dx.doi.org/10.1007/s00167-014-2937-1
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