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Finite element study of the biomechanical effects on the rotator cuff under load

Rotator cuff injuries account for 50% of shoulder disorders that can cause shoulder pain and reduced mobility. The occurrence of rotator cuff injury is related to the variation in shoulder load, but the mechanical changes in the rotator cuff caused by load remain unclear. Therefore, the mechanical r...

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Autores principales: Yang, Zhengzhong, Xu, Guangming, Yang, Jiyong, Lin, Xiaosheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10335761/
https://www.ncbi.nlm.nih.gov/pubmed/37441196
http://dx.doi.org/10.3389/fbioe.2023.1193376
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author Yang, Zhengzhong
Xu, Guangming
Yang, Jiyong
Lin, Xiaosheng
author_facet Yang, Zhengzhong
Xu, Guangming
Yang, Jiyong
Lin, Xiaosheng
author_sort Yang, Zhengzhong
collection PubMed
description Rotator cuff injuries account for 50% of shoulder disorders that can cause shoulder pain and reduced mobility. The occurrence of rotator cuff injury is related to the variation in shoulder load, but the mechanical changes in the rotator cuff caused by load remain unclear. Therefore, the mechanical results of the rotator cuff tissue during glenohumeral abduction and adduction were analyzed based on a finite element shoulder model under non-load (0 kg) and load (7.5 kg) conditions. The results showed that the maximum von Mises stress on the supraspinatus muscle was larger than that on the subscapularis, infraspinatus, and teres minor muscles during glenohumeral abduction. Compared with the non-load condition, the maximum von Mises stress on the supraspinatus muscle increased by 75% under the load condition at 30° abduction. Under the load condition, the supraspinatus joint side exhibited an average stress that was 32% greater than that observed on the bursal side. The von Mises stress on the infraspinatus muscle was higher than that in other rotator cuff tissues during adduction. The stress on the infraspinatus muscle increased by 36% in the load condition compared to the non-load condition at 30° adduction. In summary, the increased load changed the mechanical distribution of rotator cuff tissue and increased the stress differential between the joint aspect and the bursal aspect of the supraspinatus tendon.
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spelling pubmed-103357612023-07-12 Finite element study of the biomechanical effects on the rotator cuff under load Yang, Zhengzhong Xu, Guangming Yang, Jiyong Lin, Xiaosheng Front Bioeng Biotechnol Bioengineering and Biotechnology Rotator cuff injuries account for 50% of shoulder disorders that can cause shoulder pain and reduced mobility. The occurrence of rotator cuff injury is related to the variation in shoulder load, but the mechanical changes in the rotator cuff caused by load remain unclear. Therefore, the mechanical results of the rotator cuff tissue during glenohumeral abduction and adduction were analyzed based on a finite element shoulder model under non-load (0 kg) and load (7.5 kg) conditions. The results showed that the maximum von Mises stress on the supraspinatus muscle was larger than that on the subscapularis, infraspinatus, and teres minor muscles during glenohumeral abduction. Compared with the non-load condition, the maximum von Mises stress on the supraspinatus muscle increased by 75% under the load condition at 30° abduction. Under the load condition, the supraspinatus joint side exhibited an average stress that was 32% greater than that observed on the bursal side. The von Mises stress on the infraspinatus muscle was higher than that in other rotator cuff tissues during adduction. The stress on the infraspinatus muscle increased by 36% in the load condition compared to the non-load condition at 30° adduction. In summary, the increased load changed the mechanical distribution of rotator cuff tissue and increased the stress differential between the joint aspect and the bursal aspect of the supraspinatus tendon. Frontiers Media S.A. 2023-06-27 /pmc/articles/PMC10335761/ /pubmed/37441196 http://dx.doi.org/10.3389/fbioe.2023.1193376 Text en Copyright © 2023 Yang, Xu, Yang and Lin. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Bioengineering and Biotechnology
Yang, Zhengzhong
Xu, Guangming
Yang, Jiyong
Lin, Xiaosheng
Finite element study of the biomechanical effects on the rotator cuff under load
title Finite element study of the biomechanical effects on the rotator cuff under load
title_full Finite element study of the biomechanical effects on the rotator cuff under load
title_fullStr Finite element study of the biomechanical effects on the rotator cuff under load
title_full_unstemmed Finite element study of the biomechanical effects on the rotator cuff under load
title_short Finite element study of the biomechanical effects on the rotator cuff under load
title_sort finite element study of the biomechanical effects on the rotator cuff under load
topic Bioengineering and Biotechnology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10335761/
https://www.ncbi.nlm.nih.gov/pubmed/37441196
http://dx.doi.org/10.3389/fbioe.2023.1193376
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