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Magnetic resonance imaging evaluation of meniscoid superior labrum: normal variant or superior labral tear

OBJECTIVE: The objective of this study was to determine the incidence of a "meniscoid" superior labrum. MATERIALS AND METHODS: This was a retrospective analysis of 582 magnetic resonance imaging examinations of shoulders. Of those 582 examinations, 110 were excluded, for a variety of reaso...

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Autores principales: Simão, Marcelo Novelino, Vinson, Emily N., Spritzer, Charles E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Colégio Brasileiro de Radiologia e Diagnóstico por Imagem 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5073387/
https://www.ncbi.nlm.nih.gov/pubmed/27777474
http://dx.doi.org/10.1590/0100-3984.2015.0083
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author Simão, Marcelo Novelino
Vinson, Emily N.
Spritzer, Charles E.
author_facet Simão, Marcelo Novelino
Vinson, Emily N.
Spritzer, Charles E.
author_sort Simão, Marcelo Novelino
collection PubMed
description OBJECTIVE: The objective of this study was to determine the incidence of a "meniscoid" superior labrum. MATERIALS AND METHODS: This was a retrospective analysis of 582 magnetic resonance imaging examinations of shoulders. Of those 582 examinations, 110 were excluded, for a variety of reasons, and the final analysis therefore included 472 cases. Consensus readings were performed by three musculoskeletal radiologists using specific criteria to diagnose meniscoid labra. RESULTS: A meniscoid superior labrum was identified in 48 (10.2%) of the 472 cases evaluated. Arthroscopic proof was available in 21 cases (43.8%). In 10 (47.6%) of those 21 cases, the operative report did not include the mention a superior labral tear, thus suggesting the presence of a meniscoid labrum. In only one of those cases were there specific comments about a mobile superior labrum (i.e., meniscoid labrum). In the remaining 11 (52.4%), surgical correlation demonstrated superior labral tears. CONCLUSION: A meniscoid superior labrum is not an infrequent finding. Depending upon assumptions and the requirement of surgical proof, the prevalence of a meniscoid superior labrum in this study was between 2.1% (surgically proven) and 4.8% (projected). However, superior labral tears are just as common and are often confused with meniscoid labra.
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spelling pubmed-50733872016-10-24 Magnetic resonance imaging evaluation of meniscoid superior labrum: normal variant or superior labral tear Simão, Marcelo Novelino Vinson, Emily N. Spritzer, Charles E. Radiol Bras Original Articles OBJECTIVE: The objective of this study was to determine the incidence of a "meniscoid" superior labrum. MATERIALS AND METHODS: This was a retrospective analysis of 582 magnetic resonance imaging examinations of shoulders. Of those 582 examinations, 110 were excluded, for a variety of reasons, and the final analysis therefore included 472 cases. Consensus readings were performed by three musculoskeletal radiologists using specific criteria to diagnose meniscoid labra. RESULTS: A meniscoid superior labrum was identified in 48 (10.2%) of the 472 cases evaluated. Arthroscopic proof was available in 21 cases (43.8%). In 10 (47.6%) of those 21 cases, the operative report did not include the mention a superior labral tear, thus suggesting the presence of a meniscoid labrum. In only one of those cases were there specific comments about a mobile superior labrum (i.e., meniscoid labrum). In the remaining 11 (52.4%), surgical correlation demonstrated superior labral tears. CONCLUSION: A meniscoid superior labrum is not an infrequent finding. Depending upon assumptions and the requirement of surgical proof, the prevalence of a meniscoid superior labrum in this study was between 2.1% (surgically proven) and 4.8% (projected). However, superior labral tears are just as common and are often confused with meniscoid labra. Colégio Brasileiro de Radiologia e Diagnóstico por Imagem 2016 /pmc/articles/PMC5073387/ /pubmed/27777474 http://dx.doi.org/10.1590/0100-3984.2015.0083 Text en © Colégio Brasileiro de Radiologia e Diagnóstico por Imagem http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
Simão, Marcelo Novelino
Vinson, Emily N.
Spritzer, Charles E.
Magnetic resonance imaging evaluation of meniscoid superior labrum: normal variant or superior labral tear
title Magnetic resonance imaging evaluation of meniscoid superior labrum: normal variant or superior labral tear
title_full Magnetic resonance imaging evaluation of meniscoid superior labrum: normal variant or superior labral tear
title_fullStr Magnetic resonance imaging evaluation of meniscoid superior labrum: normal variant or superior labral tear
title_full_unstemmed Magnetic resonance imaging evaluation of meniscoid superior labrum: normal variant or superior labral tear
title_short Magnetic resonance imaging evaluation of meniscoid superior labrum: normal variant or superior labral tear
title_sort magnetic resonance imaging evaluation of meniscoid superior labrum: normal variant or superior labral tear
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5073387/
https://www.ncbi.nlm.nih.gov/pubmed/27777474
http://dx.doi.org/10.1590/0100-3984.2015.0083
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