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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Korean Shoulder and Elbow Society
2020
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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. |
format | Online Article Text |
id | pubmed-7714288 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Korean Shoulder and Elbow Society |
record_format | MEDLINE/PubMed |
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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