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http://dx.doi.org/10.9718/JBER.2010.31.6.449

Mechanical safety evaluation of ceramic ball head for total hip replacement using finite element method  

Han, Sung-Min (Biomedical Research Center(Korea Institute of Science and Technology)
Chu, Jun-Uk (Biomedical Research Center(Korea Institute of Science and Technology)
Chun, Heoung-Jae (Mechanical Engineering Yonsei University)
Kim, Jung-Sung (Coren_tec Co. Ltd.)
Choi, Kui-Won (Biomedical Research Center(Korea Institute of Science and Technology)
Youn, In-Chan (Biomedical Research Center(Korea Institute of Science and Technology)
Publication Information
Journal of Biomedical Engineering Research / v.31, no.6, 2010 , pp. 449-455 More about this Journal
Abstract
A ceramic articulating system in total hip replacement thought to be superior to metal-on-polyethylene due to its extremely low coefficient of friction and potential for high resistance to wear. But ceramic is brittle, which makes it mechanically and theoretically susceptible to fracture under certain mechanical conditions. In the current study, nine different models of ceramic ball heads were mechanically evaluated using 3D finite element(FE) analyses. It was found that the maximum stress in all ceramic models was lower than ceramic flexural strength, and it satisfied the requirements of the FDA Gaudience for artificial hip implant. Thus, ceramic ball head models introduced in the current study could be mechanically safe for clinical applications.
Keywords
Total Hip Replacement(THR); Ceramic ball head; Finite Element Method(FEM); Mechanical safety;
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Times Cited By KSCI : 3  (Citation Analysis)
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