Radiocapitellar joint pressures following transradial amputation increase during elbow motion

Abstract This study aimed to compare the contact area, mean pressure, and peak pressure of the radiocapitellar joint (RCJ) in the upper limb after transradial amputation with those of the normal upper limb during elbow flexion and forearm rotation. Testing was performed using ten fresh-frozen upper...

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Autores principales:	Young-Hoon Jo, Bong-Gun Lee, Chang-Hun Lee, Kwang-Hyun Lee, Dong-Hong Kim, Doo-Sup Kim, Sung Jae Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1a73bd82188c4ddda302f1bfd5839e19
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spelling	oai:doaj.org-article:1a73bd82188c4ddda302f1bfd5839e192021-12-02T15:23:07ZRadiocapitellar joint pressures following transradial amputation increase during elbow motion10.1038/s41598-021-92743-62045-2322https://doaj.org/article/1a73bd82188c4ddda302f1bfd5839e192021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92743-6https://doaj.org/toc/2045-2322Abstract This study aimed to compare the contact area, mean pressure, and peak pressure of the radiocapitellar joint (RCJ) in the upper limb after transradial amputation with those of the normal upper limb during elbow flexion and forearm rotation. Testing was performed using ten fresh-frozen upper limbs, and the transradial amputation was performed 5 cm proximal to the radial styloid process. The specimens were connected to a custom-designed apparatus for testing. A pressure sensor was inserted into the RCJ. The biomechanical indices of the RCJ were measured during elbow flexion and forearm rotation in all specimens. There was no significant difference in the contact area between the normal and transradial amputated upper limbs. However, in the upper limbs after transradial amputation, the mean pressure was higher than that in the normal upper limbs at all positions of elbow flexion and forearm rotation. The peak pressure was significantly higher in the upper limbs after transradial amputation than in the normal upper limbs, and was especially increased during pronation at 45° of elbow flexion. In conclusion, these results could cause cartilage erosion in the RCJ of transradial amputees. Thus, methods to reduce the pressure of the RCJ should be considered when a myoelectric prosthesis is developed.Young-Hoon JoBong-Gun LeeChang-Hun LeeKwang-Hyun LeeDong-Hong KimDoo-Sup KimSung Jae KimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Young-Hoon Jo Bong-Gun Lee Chang-Hun Lee Kwang-Hyun Lee Dong-Hong Kim Doo-Sup Kim Sung Jae Kim Radiocapitellar joint pressures following transradial amputation increase during elbow motion
description	Abstract This study aimed to compare the contact area, mean pressure, and peak pressure of the radiocapitellar joint (RCJ) in the upper limb after transradial amputation with those of the normal upper limb during elbow flexion and forearm rotation. Testing was performed using ten fresh-frozen upper limbs, and the transradial amputation was performed 5 cm proximal to the radial styloid process. The specimens were connected to a custom-designed apparatus for testing. A pressure sensor was inserted into the RCJ. The biomechanical indices of the RCJ were measured during elbow flexion and forearm rotation in all specimens. There was no significant difference in the contact area between the normal and transradial amputated upper limbs. However, in the upper limbs after transradial amputation, the mean pressure was higher than that in the normal upper limbs at all positions of elbow flexion and forearm rotation. The peak pressure was significantly higher in the upper limbs after transradial amputation than in the normal upper limbs, and was especially increased during pronation at 45° of elbow flexion. In conclusion, these results could cause cartilage erosion in the RCJ of transradial amputees. Thus, methods to reduce the pressure of the RCJ should be considered when a myoelectric prosthesis is developed.
format	article
author	Young-Hoon Jo Bong-Gun Lee Chang-Hun Lee Kwang-Hyun Lee Dong-Hong Kim Doo-Sup Kim Sung Jae Kim
author_facet	Young-Hoon Jo Bong-Gun Lee Chang-Hun Lee Kwang-Hyun Lee Dong-Hong Kim Doo-Sup Kim Sung Jae Kim
author_sort	Young-Hoon Jo
title	Radiocapitellar joint pressures following transradial amputation increase during elbow motion
title_short	Radiocapitellar joint pressures following transradial amputation increase during elbow motion
title_full	Radiocapitellar joint pressures following transradial amputation increase during elbow motion
title_fullStr	Radiocapitellar joint pressures following transradial amputation increase during elbow motion
title_full_unstemmed	Radiocapitellar joint pressures following transradial amputation increase during elbow motion
title_sort	radiocapitellar joint pressures following transradial amputation increase during elbow motion
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/1a73bd82188c4ddda302f1bfd5839e19
work_keys_str_mv	AT younghoonjo radiocapitellarjointpressuresfollowingtransradialamputationincreaseduringelbowmotion AT bonggunlee radiocapitellarjointpressuresfollowingtransradialamputationincreaseduringelbowmotion AT changhunlee radiocapitellarjointpressuresfollowingtransradialamputationincreaseduringelbowmotion AT kwanghyunlee radiocapitellarjointpressuresfollowingtransradialamputationincreaseduringelbowmotion AT donghongkim radiocapitellarjointpressuresfollowingtransradialamputationincreaseduringelbowmotion AT doosupkim radiocapitellarjointpressuresfollowingtransradialamputationincreaseduringelbowmotion AT sungjaekim radiocapitellarjointpressuresfollowingtransradialamputationincreaseduringelbowmotion
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Radiocapitellar joint pressures following transradial amputation increase during elbow motion

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