Similar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem

Introduction: The design of uncemented femoral stems for use in total hip arthroplasty has evolved. Several uncemented short stems have been developed with different bone fixations, shapes, or stem lengths. The literature analyzing the biomechanical performance of short to standard stem lengths is l...

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Autores principales:	Batailler Cécile, Shatrov Jobe, Schmidt Axel, Servien Elvire, Puch Jean Marc, Lustig Sébastien
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	total hip arthroplasty short stem uncemented stem finite element analysis stress repartition Orthopedic surgery RD701-811
Acceso en línea:	https://doaj.org/article/882dc71162994f20b674548e1769e83b
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spelling	oai:doaj.org-article:882dc71162994f20b674548e1769e83b2021-12-02T17:16:12ZSimilar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem2426-888710.1051/sicotj/2021061https://doaj.org/article/882dc71162994f20b674548e1769e83b2021-01-01T00:00:00Zhttps://www.sicot-j.org/articles/sicotj/full_html/2021/01/sicotj210079/sicotj210079.htmlhttps://doaj.org/toc/2426-8887Introduction: The design of uncemented femoral stems for use in total hip arthroplasty has evolved. Several uncemented short stems have been developed with different bone fixations, shapes, or stem lengths. The literature analyzing the biomechanical performance of short to standard stem lengths is limited. The aim was to compare the stress repartition on a standard uncemented stem and a shortened uncemented femoral stem with the same design features. Material and methods: This finite element analysis assessed the stress repartition on two femoral components with the same design (uncemented, collared, proximal trapezoidal cross-section, and a tapered quadrangular distal stem) but with two different lengths. The shortened stem was shorter by 40 mm compared to the standard stem. The stress repartition was analysed according to the Von Mises criterion. Results: The stress repartition was similar for the standard and shorter stem without significant difference (p = 0.94). The mean Von Mises stress was 58.1 MPa [0.2; 154.1] for the standard stem and 57.2 MPa [0.03; 160.2] for the short stem. The distal part of the standard stem, which was removed in the short stem, had mean stress of 3.7 MPa [0.2; 7.0]. Conclusion: The finite element analysis found similar stress repartitions between a standard uncemented collared stem and a short, collared stem with the same design. A clinical study assessing the clinical outcomes and the bone remodelling with a collared short stem would be interesting to confirm these first promising results.Batailler CécileShatrov JobeSchmidt AxelServien ElvirePuch Jean MarcLustig SébastienEDP Sciencesarticletotal hip arthroplastyshort stemuncemented stemfinite element analysisstress repartitionOrthopedic surgeryRD701-811ENSICOT-J, Vol 7, p 58 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	total hip arthroplasty short stem uncemented stem finite element analysis stress repartition Orthopedic surgery RD701-811
spellingShingle	total hip arthroplasty short stem uncemented stem finite element analysis stress repartition Orthopedic surgery RD701-811 Batailler Cécile Shatrov Jobe Schmidt Axel Servien Elvire Puch Jean Marc Lustig Sébastien Similar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem
description	Introduction: The design of uncemented femoral stems for use in total hip arthroplasty has evolved. Several uncemented short stems have been developed with different bone fixations, shapes, or stem lengths. The literature analyzing the biomechanical performance of short to standard stem lengths is limited. The aim was to compare the stress repartition on a standard uncemented stem and a shortened uncemented femoral stem with the same design features. Material and methods: This finite element analysis assessed the stress repartition on two femoral components with the same design (uncemented, collared, proximal trapezoidal cross-section, and a tapered quadrangular distal stem) but with two different lengths. The shortened stem was shorter by 40 mm compared to the standard stem. The stress repartition was analysed according to the Von Mises criterion. Results: The stress repartition was similar for the standard and shorter stem without significant difference (p = 0.94). The mean Von Mises stress was 58.1 MPa [0.2; 154.1] for the standard stem and 57.2 MPa [0.03; 160.2] for the short stem. The distal part of the standard stem, which was removed in the short stem, had mean stress of 3.7 MPa [0.2; 7.0]. Conclusion: The finite element analysis found similar stress repartitions between a standard uncemented collared stem and a short, collared stem with the same design. A clinical study assessing the clinical outcomes and the bone remodelling with a collared short stem would be interesting to confirm these first promising results.
format	article
author	Batailler Cécile Shatrov Jobe Schmidt Axel Servien Elvire Puch Jean Marc Lustig Sébastien
author_facet	Batailler Cécile Shatrov Jobe Schmidt Axel Servien Elvire Puch Jean Marc Lustig Sébastien
author_sort	Batailler Cécile
title	Similar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem
title_short	Similar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem
title_full	Similar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem
title_fullStr	Similar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem
title_full_unstemmed	Similar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem
title_sort	similar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/882dc71162994f20b674548e1769e83b
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Similar stress repartition for a standard uncemented collared femoral stem versus a shortened collared femoral stem

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