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Stiffness changes in internal rotation muscles of the shoulder and its influence on hemiplegic shoulder pain

BACKGROUND: Hemiplegic shoulder pain (HSP) is a common complication in patients with stroke. The pathogenesis of HSP is complex, and muscle hypertonia, especially the hypertonia of internal rotation muscles of the shoulder, may be one of the important causes of shoulder pain. However, the relationsh...

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Autores principales: Jia, Fan, Zhu, Xin-Rui, Kong, Ling-Yu, Fan, Jie-Cheng, Zhu, Zong-Jing, Lin, Li-Zhen, Zhang, Shu-Yun, Yuan, Xiang-Zhen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10272777/
https://www.ncbi.nlm.nih.gov/pubmed/37332999
http://dx.doi.org/10.3389/fneur.2023.1195915
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author Jia, Fan
Zhu, Xin-Rui
Kong, Ling-Yu
Fan, Jie-Cheng
Zhu, Zong-Jing
Lin, Li-Zhen
Zhang, Shu-Yun
Yuan, Xiang-Zhen
author_facet Jia, Fan
Zhu, Xin-Rui
Kong, Ling-Yu
Fan, Jie-Cheng
Zhu, Zong-Jing
Lin, Li-Zhen
Zhang, Shu-Yun
Yuan, Xiang-Zhen
author_sort Jia, Fan
collection PubMed
description BACKGROUND: Hemiplegic shoulder pain (HSP) is a common complication in patients with stroke. The pathogenesis of HSP is complex, and muscle hypertonia, especially the hypertonia of internal rotation muscles of the shoulder, may be one of the important causes of shoulder pain. However, the relationship between muscle stiffness and HSP has not been well studied. The purpose of this study is to explore the correlations between the stiffness of internal rotation muscles and clinical symptoms in patients with HSP. METHODS: A total of 20 HSP patients and 20 healthy controls were recruited for this study. The stiffness of internal rotation muscles was quantified using shear wave elastography, and Young's modulus (YM) of the pectoralis major (PM), anterior deltoid (AD), teres major ™, and latissimus dorsi (LD) were measured. Muscle hypertonia and pain intensity were evaluated using the Modified Ashworth Scale (MAS) and Visual Analog Scale (VAS), respectively. The mobility of the shoulder was evaluated using the Neer score. The correlations between muscle stiffness and the clinical scales were analyzed. RESULTS: YM of internal rotation muscles on the paretic side was higher than that of the control group in the resting and passive stretching positions (P < 0.05). YM of internal rotation muscles on the paretic side during passive stretching was significantly higher than that at rest (P < 0.05). YM of PM, TM, and LD during passive stretching were correlated with MAS (P < 0.05). In addition, the YM of TM during passive stretching was positively correlated with VAS and negatively correlated with the Neer score (P < 0.05). CONCLUSION: Increased stiffness of PM, TM, and LD was observed in patients with HSP. The stiffness of TM was associated with pain intensity of the shoulder and shoulder mobility.
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spelling pubmed-102727772023-06-17 Stiffness changes in internal rotation muscles of the shoulder and its influence on hemiplegic shoulder pain Jia, Fan Zhu, Xin-Rui Kong, Ling-Yu Fan, Jie-Cheng Zhu, Zong-Jing Lin, Li-Zhen Zhang, Shu-Yun Yuan, Xiang-Zhen Front Neurol Neurology BACKGROUND: Hemiplegic shoulder pain (HSP) is a common complication in patients with stroke. The pathogenesis of HSP is complex, and muscle hypertonia, especially the hypertonia of internal rotation muscles of the shoulder, may be one of the important causes of shoulder pain. However, the relationship between muscle stiffness and HSP has not been well studied. The purpose of this study is to explore the correlations between the stiffness of internal rotation muscles and clinical symptoms in patients with HSP. METHODS: A total of 20 HSP patients and 20 healthy controls were recruited for this study. The stiffness of internal rotation muscles was quantified using shear wave elastography, and Young's modulus (YM) of the pectoralis major (PM), anterior deltoid (AD), teres major ™, and latissimus dorsi (LD) were measured. Muscle hypertonia and pain intensity were evaluated using the Modified Ashworth Scale (MAS) and Visual Analog Scale (VAS), respectively. The mobility of the shoulder was evaluated using the Neer score. The correlations between muscle stiffness and the clinical scales were analyzed. RESULTS: YM of internal rotation muscles on the paretic side was higher than that of the control group in the resting and passive stretching positions (P < 0.05). YM of internal rotation muscles on the paretic side during passive stretching was significantly higher than that at rest (P < 0.05). YM of PM, TM, and LD during passive stretching were correlated with MAS (P < 0.05). In addition, the YM of TM during passive stretching was positively correlated with VAS and negatively correlated with the Neer score (P < 0.05). CONCLUSION: Increased stiffness of PM, TM, and LD was observed in patients with HSP. The stiffness of TM was associated with pain intensity of the shoulder and shoulder mobility. Frontiers Media S.A. 2023-06-02 /pmc/articles/PMC10272777/ /pubmed/37332999 http://dx.doi.org/10.3389/fneur.2023.1195915 Text en Copyright © 2023 Jia, Zhu, Kong, Fan, Zhu, Lin, Zhang and Yuan. 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 Neurology
Jia, Fan
Zhu, Xin-Rui
Kong, Ling-Yu
Fan, Jie-Cheng
Zhu, Zong-Jing
Lin, Li-Zhen
Zhang, Shu-Yun
Yuan, Xiang-Zhen
Stiffness changes in internal rotation muscles of the shoulder and its influence on hemiplegic shoulder pain
title Stiffness changes in internal rotation muscles of the shoulder and its influence on hemiplegic shoulder pain
title_full Stiffness changes in internal rotation muscles of the shoulder and its influence on hemiplegic shoulder pain
title_fullStr Stiffness changes in internal rotation muscles of the shoulder and its influence on hemiplegic shoulder pain
title_full_unstemmed Stiffness changes in internal rotation muscles of the shoulder and its influence on hemiplegic shoulder pain
title_short Stiffness changes in internal rotation muscles of the shoulder and its influence on hemiplegic shoulder pain
title_sort stiffness changes in internal rotation muscles of the shoulder and its influence on hemiplegic shoulder pain
topic Neurology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10272777/
https://www.ncbi.nlm.nih.gov/pubmed/37332999
http://dx.doi.org/10.3389/fneur.2023.1195915
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