«Terrible triad» of the shoulder. Biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration

The aim of this study: was determine the force of tension and deformation of axillary nerve in rupture rotator cuff and paresis of deltoid muscle of the shoulder joint. Material and methods: Semi-natural modelling based on the axial scans spiral computed tomography of the intact shoulder joint wa...

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Autores principales:	Oleksii Sukhin, Sergii Strafun, Andriy Lysak, Igor Lazarev
Formato:	article
Lenguaje:	EN
Publicado:	Scientific Route OÜ 2021
Materias:	axillary nerve “terrible triad” of the shoulder m. supraspinatus rotator cuff tears Medicine R
Acceso en línea:	https://doaj.org/article/67cec3f9db184904b739edc59f3987f8
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spelling	oai:doaj.org-article:67cec3f9db184904b739edc59f3987f82021-12-03T07:43:49Z«Terrible triad» of the shoulder. Biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration2504-56602504-567910.21303/2504-5679.2021.001838https://doaj.org/article/67cec3f9db184904b739edc59f3987f82021-11-01T00:00:00Zhttp://journal.eu-jr.eu/health/article/view/1838https://doaj.org/toc/2504-5660https://doaj.org/toc/2504-5679The aim of this study: was determine the force of tension and deformation of axillary nerve in rupture rotator cuff and paresis of deltoid muscle of the shoulder joint. Material and methods: Semi-natural modelling based on the axial scans spiral computed tomography of the intact shoulder joint was performed to determine the degree of traction load on the axillary nerve with distal displacement shoulder head and tendon rupture which paresis of the deltoid muscle. Result: The values of deformations for axillary nerve being at the limit of tissue strength at distal displacement of humeral head of the model by 50 %, progressively increased with increasing distal displacement of humeral head to 100 % of its diameter, reaching values 1.7 times higher than the strength nervous tissue. Conclusion: The progressive changes occurring in the axillary nerve under the action of traction loads, and as a consequence of its ischemia, over time can lead not only to demyelination, but also to the defeat of the axons themselves atrophy of its fibers. In turn, deltoid muscle atrophy increases the traction load on the affected axillary nerve, which forms a vicious circle. The only possible option to "break" the vicious circle is restore the stabilizing structures damaged during the injury, among which one of the most important is the tendons of the rotator cuff of the shoulder. Surgical restoration of the integrity rotator cuff of the shoulder reduces the traction load acting on the axillary nerve, which in turn significantly improves the conditions for reinnervation of the deltoid muscle.Oleksii SukhinSergii StrafunAndriy LysakIgor LazarevScientific Route OÜarticleaxillary nerve“terrible triad” of the shoulderm. supraspinatusrotator cuff tearsMedicineRENEUREKA: Health Sciences, Iss 6, Pp 17-23 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	axillary nerve “terrible triad” of the shoulder m. supraspinatus rotator cuff tears Medicine R
spellingShingle	axillary nerve “terrible triad” of the shoulder m. supraspinatus rotator cuff tears Medicine R Oleksii Sukhin Sergii Strafun Andriy Lysak Igor Lazarev «Terrible triad» of the shoulder. Biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration
description	The aim of this study: was determine the force of tension and deformation of axillary nerve in rupture rotator cuff and paresis of deltoid muscle of the shoulder joint. Material and methods: Semi-natural modelling based on the axial scans spiral computed tomography of the intact shoulder joint was performed to determine the degree of traction load on the axillary nerve with distal displacement shoulder head and tendon rupture which paresis of the deltoid muscle. Result: The values of deformations for axillary nerve being at the limit of tissue strength at distal displacement of humeral head of the model by 50 %, progressively increased with increasing distal displacement of humeral head to 100 % of its diameter, reaching values 1.7 times higher than the strength nervous tissue. Conclusion: The progressive changes occurring in the axillary nerve under the action of traction loads, and as a consequence of its ischemia, over time can lead not only to demyelination, but also to the defeat of the axons themselves atrophy of its fibers. In turn, deltoid muscle atrophy increases the traction load on the affected axillary nerve, which forms a vicious circle. The only possible option to "break" the vicious circle is restore the stabilizing structures damaged during the injury, among which one of the most important is the tendons of the rotator cuff of the shoulder. Surgical restoration of the integrity rotator cuff of the shoulder reduces the traction load acting on the axillary nerve, which in turn significantly improves the conditions for reinnervation of the deltoid muscle.
format	article
author	Oleksii Sukhin Sergii Strafun Andriy Lysak Igor Lazarev
author_facet	Oleksii Sukhin Sergii Strafun Andriy Lysak Igor Lazarev
author_sort	Oleksii Sukhin
title	«Terrible triad» of the shoulder. Biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration
title_short	«Terrible triad» of the shoulder. Biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration
title_full	«Terrible triad» of the shoulder. Biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration
title_fullStr	«Terrible triad» of the shoulder. Biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration
title_full_unstemmed	«Terrible triad» of the shoulder. Biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration
title_sort	«terrible triad» of the shoulder. biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration
publisher	Scientific Route OÜ
publishDate	2021
url	https://doaj.org/article/67cec3f9db184904b739edc59f3987f8
work_keys_str_mv	AT oleksiisukhin terribletriadoftheshoulderbiomechanicalseminaturalmodelingandjustificationtorotatorcuffrestoration AT sergiistrafun terribletriadoftheshoulderbiomechanicalseminaturalmodelingandjustificationtorotatorcuffrestoration AT andriylysak terribletriadoftheshoulderbiomechanicalseminaturalmodelingandjustificationtorotatorcuffrestoration AT igorlazarev terribletriadoftheshoulderbiomechanicalseminaturalmodelingandjustificationtorotatorcuffrestoration
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«Terrible triad» of the shoulder. Biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration

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