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Magnetic resonance imaging analysis of rotator cuff tear after shoulder dislocation in a patient older than 40 years

BACKGROUND: This study was designed to evaluate characters of the rotator cuff tear (RCT) recognized after primary shoulder dislocation in patients older than 40. METHODS: From 2008 to 2019, patients who visited two hospitals after dislocation were retrospectively reviewed. Inclusion criteria were p...

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Autores principales: Kim, Jung-Han, Park, Jin-Woo, Heo, Si-Young, Noh, Young-Min
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Shoulder and Elbow Society 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7714288/
https://www.ncbi.nlm.nih.gov/pubmed/33330249
http://dx.doi.org/10.5397/cise.2020.00227
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author Kim, Jung-Han
Park, Jin-Woo
Heo, Si-Young
Noh, Young-Min
author_facet Kim, Jung-Han
Park, Jin-Woo
Heo, Si-Young
Noh, Young-Min
author_sort Kim, Jung-Han
collection PubMed
description BACKGROUND: This study was designed to evaluate characters of the rotator cuff tear (RCT) recognized after primary shoulder dislocation in patients older than 40. METHODS: From 2008 to 2019, patients who visited two hospitals after dislocation were retrospectively reviewed. Inclusion criteria were patients over 40 who had dislocation, with magnetic resonance imaging (MRI) undergone. Exclusion criteria were patients who lost to follow-up, combined with any proximal humerus fracture, brachial plexus injury, and previous operation or dislocation history in the ipsilateral shoulder. Also patients who had only bankart or bony bakart lesion in MRI were excluded. We evaluated RCTs that were recognized by MRI after the primary shoulder dislocation with regard to tear size, degree, involved tendons, fatty degeneration, the age when the first dislocation occurred, and the duration until the MRI was evaluated after the dislocation. RESULTS: Fifty-five RCTs were included. According to age groups, the tear size was increased in coronal and sagittal direction, the number of involved tendons was increased, and the degree of fatty degeneration was advanced in infraspinatus muscle. Thirty-two cases (58.2%) conducted MRI after 3 weeks from the first shoulder dislocation event. This group showed that the retraction size of the coronal plane was increased significantly and the fatty accumulation of the supraspinatus muscle had progressed significantly. CONCLUSIONS: Age is also a strong factor to affect the feature of RCT after the shoulder dislocation in patients over 40. And the delay of the MRI may deteriorate the degree of tear size and fatty degeneration.
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spelling pubmed-77142882020-12-15 Magnetic resonance imaging analysis of rotator cuff tear after shoulder dislocation in a patient older than 40 years Kim, Jung-Han Park, Jin-Woo Heo, Si-Young Noh, Young-Min Clin Shoulder Elb Original Article BACKGROUND: This study was designed to evaluate characters of the rotator cuff tear (RCT) recognized after primary shoulder dislocation in patients older than 40. METHODS: From 2008 to 2019, patients who visited two hospitals after dislocation were retrospectively reviewed. Inclusion criteria were patients over 40 who had dislocation, with magnetic resonance imaging (MRI) undergone. Exclusion criteria were patients who lost to follow-up, combined with any proximal humerus fracture, brachial plexus injury, and previous operation or dislocation history in the ipsilateral shoulder. Also patients who had only bankart or bony bakart lesion in MRI were excluded. We evaluated RCTs that were recognized by MRI after the primary shoulder dislocation with regard to tear size, degree, involved tendons, fatty degeneration, the age when the first dislocation occurred, and the duration until the MRI was evaluated after the dislocation. RESULTS: Fifty-five RCTs were included. According to age groups, the tear size was increased in coronal and sagittal direction, the number of involved tendons was increased, and the degree of fatty degeneration was advanced in infraspinatus muscle. Thirty-two cases (58.2%) conducted MRI after 3 weeks from the first shoulder dislocation event. This group showed that the retraction size of the coronal plane was increased significantly and the fatty accumulation of the supraspinatus muscle had progressed significantly. CONCLUSIONS: Age is also a strong factor to affect the feature of RCT after the shoulder dislocation in patients over 40. And the delay of the MRI may deteriorate the degree of tear size and fatty degeneration. Korean Shoulder and Elbow Society 2020-09-01 /pmc/articles/PMC7714288/ /pubmed/33330249 http://dx.doi.org/10.5397/cise.2020.00227 Text en Copyright © 2020 Korean Shoulder and Elbow Society This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Kim, Jung-Han
Park, Jin-Woo
Heo, Si-Young
Noh, Young-Min
Magnetic resonance imaging analysis of rotator cuff tear after shoulder dislocation in a patient older than 40 years
title Magnetic resonance imaging analysis of rotator cuff tear after shoulder dislocation in a patient older than 40 years
title_full Magnetic resonance imaging analysis of rotator cuff tear after shoulder dislocation in a patient older than 40 years
title_fullStr Magnetic resonance imaging analysis of rotator cuff tear after shoulder dislocation in a patient older than 40 years
title_full_unstemmed Magnetic resonance imaging analysis of rotator cuff tear after shoulder dislocation in a patient older than 40 years
title_short Magnetic resonance imaging analysis of rotator cuff tear after shoulder dislocation in a patient older than 40 years
title_sort magnetic resonance imaging analysis of rotator cuff tear after shoulder dislocation in a patient older than 40 years
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7714288/
https://www.ncbi.nlm.nih.gov/pubmed/33330249
http://dx.doi.org/10.5397/cise.2020.00227
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