The effect of geometry of prosthesis on the stability of hip joint arthroplasty using finite element method

Lack of stability is known as one of the principal factors contributing to the loosening of hip prosthesis. Initial stability of the hip prosthesis is related to the magnitude of relative displacement at the femoral boneprosthesis interface. The present study investigated the effect of prosthesis ge...

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Main Author:	Abdullah, Haslina
Format:	Thesis
Language:	English
Published:	2012
Subjects:	R Medicine (General)
Online Access:	http://eprints.utm.my/id/eprint/32593/1/HaslinaAbdullahMFKM2012.pdf
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id	my-utm-ep.32593
record_format	uketd_dc
spelling	my-utm-ep.325932017-08-22T07:51:06Z The effect of geometry of prosthesis on the stability of hip joint arthroplasty using finite element method 2012 Abdullah, Haslina R Medicine (General) Lack of stability is known as one of the principal factors contributing to the loosening of hip prosthesis. Initial stability of the hip prosthesis is related to the magnitude of relative displacement at the femoral boneprosthesis interface. The present study investigated the effect of prosthesis geometry on the initial stability. In addition, the effect of hole and fin as additional features of prosthesis was also investigated. Three-dimensional (3D) finite element model of femur and prosthesis was constructed based on Computed Tomography (CT) dataset of a Malaysian male patient. Simulations of normal walking condition were performed on the models to investigate the relative displacement between the bone and prosthesis interface. The simulation results showed that rectangular hip prosthesis contributed to the reduction of relative motion at the proximal and distal ends of the prosthesis. For the prosthesis with additional hole as a feature on the proximal region of prosthesis, the result showed that it increased the magnitude of relative displacement at the proximal region on the medial side. For the effect of fin, it was observed that the relative displacement was lower than 40 µm along the lateral and medial sides. 2012 Thesis http://eprints.utm.my/id/eprint/32593/ http://eprints.utm.my/id/eprint/32593/1/HaslinaAbdullahMFKM2012.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:68090?site_name=Restricted Repository masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	R Medicine (General)
spellingShingle	R Medicine (General) Abdullah, Haslina The effect of geometry of prosthesis on the stability of hip joint arthroplasty using finite element method
description	Lack of stability is known as one of the principal factors contributing to the loosening of hip prosthesis. Initial stability of the hip prosthesis is related to the magnitude of relative displacement at the femoral boneprosthesis interface. The present study investigated the effect of prosthesis geometry on the initial stability. In addition, the effect of hole and fin as additional features of prosthesis was also investigated. Three-dimensional (3D) finite element model of femur and prosthesis was constructed based on Computed Tomography (CT) dataset of a Malaysian male patient. Simulations of normal walking condition were performed on the models to investigate the relative displacement between the bone and prosthesis interface. The simulation results showed that rectangular hip prosthesis contributed to the reduction of relative motion at the proximal and distal ends of the prosthesis. For the prosthesis with additional hole as a feature on the proximal region of prosthesis, the result showed that it increased the magnitude of relative displacement at the proximal region on the medial side. For the effect of fin, it was observed that the relative displacement was lower than 40 µm along the lateral and medial sides.
format	Thesis
qualification_level	Master's degree
author	Abdullah, Haslina
author_facet	Abdullah, Haslina
author_sort	Abdullah, Haslina
title	The effect of geometry of prosthesis on the stability of hip joint arthroplasty using finite element method
title_short	The effect of geometry of prosthesis on the stability of hip joint arthroplasty using finite element method
title_full	The effect of geometry of prosthesis on the stability of hip joint arthroplasty using finite element method
title_fullStr	The effect of geometry of prosthesis on the stability of hip joint arthroplasty using finite element method
title_full_unstemmed	The effect of geometry of prosthesis on the stability of hip joint arthroplasty using finite element method
title_sort	effect of geometry of prosthesis on the stability of hip joint arthroplasty using finite element method
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2012
url	http://eprints.utm.my/id/eprint/32593/1/HaslinaAbdullahMFKM2012.pdf
_version_	1747816040013758464

The effect of geometry of prosthesis on the stability of hip joint arthroplasty using finite element method

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