Effects of the depth of the acetabular component during simulated acetabulum reaming in total hip arthroplasty

Abstract We aimed to evaluate whether there are differences in the rotation center, cup coverage, and biomechanical effects between conventional and anatomical technique. Computed tomography scans of 26 normal hips were used to simulate implantation of acetabular component. The hip rotation center a...

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Autores principales:	Jianlin Zuo, Meng Xu, Xin Zhao, Xianyue Shen, Zhongli Gao, Jianlin Xiao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a43e5a48d6ff467f98fe7b396ce70860
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spelling	oai:doaj.org-article:a43e5a48d6ff467f98fe7b396ce708602021-12-02T15:36:13ZEffects of the depth of the acetabular component during simulated acetabulum reaming in total hip arthroplasty10.1038/s41598-021-89292-32045-2322https://doaj.org/article/a43e5a48d6ff467f98fe7b396ce708602021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89292-3https://doaj.org/toc/2045-2322Abstract We aimed to evaluate whether there are differences in the rotation center, cup coverage, and biomechanical effects between conventional and anatomical technique. Computed tomography scans of 26 normal hips were used to simulate implantation of acetabular component. The hip rotation center and acetabular component coverage rate were calculated. Moreover, a finite element model of the hip joint was generated to simulate and evaluate the acetabular cup insertion. Micromotion and the peak stress distribution were used to quantify the biomechanical properties. The medial and superior shifts of the rotation center were 5.2 ± 1.8 mm and 1.6 ± 0.7 mm for the conventional reaming technique and 1.1 ± 1.5 mm and 0.8 ± 0.5 mm for anatomical technique, respectively. The acetabular component coverage rates for conventional reaming technique and anatomical technique were 86.8 ± 4% and 70.0 ± 7%, respectively. The micromotion of the cup with conventional reaming technique was greater than that with anatomical technique. The peak stress concentration was highest in the superior portion with conventional reaming technique, whereas with anatomical technique, there was no stress concentration. Paradoxically although the acetabular component coverage rate is larger with conventional reaming technique, anatomical technique provides less micromotion and stress concentration for initial cup stability. Thus, anatomical technique may be more suitable for acetabulum reaming during primary total hip arthroplasty.Jianlin ZuoMeng XuXin ZhaoXianyue ShenZhongli GaoJianlin XiaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jianlin Zuo Meng Xu Xin Zhao Xianyue Shen Zhongli Gao Jianlin Xiao Effects of the depth of the acetabular component during simulated acetabulum reaming in total hip arthroplasty
description	Abstract We aimed to evaluate whether there are differences in the rotation center, cup coverage, and biomechanical effects between conventional and anatomical technique. Computed tomography scans of 26 normal hips were used to simulate implantation of acetabular component. The hip rotation center and acetabular component coverage rate were calculated. Moreover, a finite element model of the hip joint was generated to simulate and evaluate the acetabular cup insertion. Micromotion and the peak stress distribution were used to quantify the biomechanical properties. The medial and superior shifts of the rotation center were 5.2 ± 1.8 mm and 1.6 ± 0.7 mm for the conventional reaming technique and 1.1 ± 1.5 mm and 0.8 ± 0.5 mm for anatomical technique, respectively. The acetabular component coverage rates for conventional reaming technique and anatomical technique were 86.8 ± 4% and 70.0 ± 7%, respectively. The micromotion of the cup with conventional reaming technique was greater than that with anatomical technique. The peak stress concentration was highest in the superior portion with conventional reaming technique, whereas with anatomical technique, there was no stress concentration. Paradoxically although the acetabular component coverage rate is larger with conventional reaming technique, anatomical technique provides less micromotion and stress concentration for initial cup stability. Thus, anatomical technique may be more suitable for acetabulum reaming during primary total hip arthroplasty.
format	article
author	Jianlin Zuo Meng Xu Xin Zhao Xianyue Shen Zhongli Gao Jianlin Xiao
author_facet	Jianlin Zuo Meng Xu Xin Zhao Xianyue Shen Zhongli Gao Jianlin Xiao
author_sort	Jianlin Zuo
title	Effects of the depth of the acetabular component during simulated acetabulum reaming in total hip arthroplasty
title_short	Effects of the depth of the acetabular component during simulated acetabulum reaming in total hip arthroplasty
title_full	Effects of the depth of the acetabular component during simulated acetabulum reaming in total hip arthroplasty
title_fullStr	Effects of the depth of the acetabular component during simulated acetabulum reaming in total hip arthroplasty
title_full_unstemmed	Effects of the depth of the acetabular component during simulated acetabulum reaming in total hip arthroplasty
title_sort	effects of the depth of the acetabular component during simulated acetabulum reaming in total hip arthroplasty
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a43e5a48d6ff467f98fe7b396ce70860
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Effects of the depth of the acetabular component during simulated acetabulum reaming in total hip arthroplasty

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