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Title: Finite element study on the micromotion of cementless total hip arthroplasty
Authors: Mohd. Yusof, Baharuddin
Mohammed Rafiq, Abdul Kadir
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Keywords: Micromotion;Stability;Total Hip Arthroplasty
Issue Date: 1-Aug-2010
Publisher: International Federation for Medical and Biological Engineering
Citation: Vol. 31, p. 605-607
Series/Report no.: Proceedings of the International Federation for Medical and Biological Engineering (IFMBE) 2010
Abstract: Major problem associated with the cementless design is the lack of stability. Several design features were introduced to provide the much needed stability for bone integration. These include fins, fiber mesh, beads, indentations and collars. The use of collar has been a subject of controversy with mixed reports of clinical outcomes. In this study, the effectiveness of collar in terms of providing stability was analysed using finite element method. Three dimensional model of a human femur was constructed from CT dataset and hip arthroplasty was simulated. With an applied joint contact load simulating physiological gait, micromotion of the implant relative to the bone was calculated via an experimentally validated algorithm. Results showed that collar did not improve stability of the whole stem but only around the medial calcar region.
Description: Link to publisher's homepage at www.ifmbe.org/
URI: http://www.springerlink.com/content/v82mqw0v36060461/fulltext.pdf
ISBN: 978-3-5407-9038-9
ISSN: 1680-0737
Appears in Collections:Conference Papers

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