Surgical cup placement affects the heating up of total joint hip replacements

Abstract The long-term success of highly effective total hip arthroplasty (THA) is mainly restricted by aseptic loosening, which is widely associated with friction between the head and cup liner. However, knowledge of the in vivo joint friction and resulting temperature increase is limited. Employin...

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Autores principales:	Philipp Damm, Alwina Bender, Vivian Waldheim, Tobias Winkler, Georg N. Duda
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dade8da9dbba4ec8a395d27a5aec6131
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spelling	oai:doaj.org-article:dade8da9dbba4ec8a395d27a5aec61312021-12-02T18:49:29ZSurgical cup placement affects the heating up of total joint hip replacements10.1038/s41598-021-95387-82045-2322https://doaj.org/article/dade8da9dbba4ec8a395d27a5aec61312021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95387-8https://doaj.org/toc/2045-2322Abstract The long-term success of highly effective total hip arthroplasty (THA) is mainly restricted by aseptic loosening, which is widely associated with friction between the head and cup liner. However, knowledge of the in vivo joint friction and resulting temperature increase is limited. Employing a novel combination of in vivo and in silico technologies, we analyzed the hypothesis that the intraoperatively defined implant orientation defines the individual joint roofing, friction and its associated temperature increase. A total of 38,000 in vivo activity trials from a special group of 10 subjects with instrumented THA implants with an identical material combination were analyzed and showed a significant link between implant orientation, joint kinematics, joint roofing and friction-induced temperature increase but surprisingly not with acting joint contact force magnitude. This combined in vivo and in silico analysis revealed that cup placement in relation to the stem is key to the in vivo joint friction and heating-up of THA. Thus, intraoperative placement, and not only articulating materials, should be the focus of further improvements, especially for young and more active patients.Philipp DammAlwina BenderVivian WaldheimTobias WinklerGeorg N. DudaNature 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 Philipp Damm Alwina Bender Vivian Waldheim Tobias Winkler Georg N. Duda Surgical cup placement affects the heating up of total joint hip replacements
description	Abstract The long-term success of highly effective total hip arthroplasty (THA) is mainly restricted by aseptic loosening, which is widely associated with friction between the head and cup liner. However, knowledge of the in vivo joint friction and resulting temperature increase is limited. Employing a novel combination of in vivo and in silico technologies, we analyzed the hypothesis that the intraoperatively defined implant orientation defines the individual joint roofing, friction and its associated temperature increase. A total of 38,000 in vivo activity trials from a special group of 10 subjects with instrumented THA implants with an identical material combination were analyzed and showed a significant link between implant orientation, joint kinematics, joint roofing and friction-induced temperature increase but surprisingly not with acting joint contact force magnitude. This combined in vivo and in silico analysis revealed that cup placement in relation to the stem is key to the in vivo joint friction and heating-up of THA. Thus, intraoperative placement, and not only articulating materials, should be the focus of further improvements, especially for young and more active patients.
format	article
author	Philipp Damm Alwina Bender Vivian Waldheim Tobias Winkler Georg N. Duda
author_facet	Philipp Damm Alwina Bender Vivian Waldheim Tobias Winkler Georg N. Duda
author_sort	Philipp Damm
title	Surgical cup placement affects the heating up of total joint hip replacements
title_short	Surgical cup placement affects the heating up of total joint hip replacements
title_full	Surgical cup placement affects the heating up of total joint hip replacements
title_fullStr	Surgical cup placement affects the heating up of total joint hip replacements
title_full_unstemmed	Surgical cup placement affects the heating up of total joint hip replacements
title_sort	surgical cup placement affects the heating up of total joint hip replacements
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/dade8da9dbba4ec8a395d27a5aec6131
work_keys_str_mv	AT philippdamm surgicalcupplacementaffectstheheatingupoftotaljointhipreplacements AT alwinabender surgicalcupplacementaffectstheheatingupoftotaljointhipreplacements AT vivianwaldheim surgicalcupplacementaffectstheheatingupoftotaljointhipreplacements AT tobiaswinkler surgicalcupplacementaffectstheheatingupoftotaljointhipreplacements AT georgnduda surgicalcupplacementaffectstheheatingupoftotaljointhipreplacements
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Surgical cup placement affects the heating up of total joint hip replacements

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