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KMID : 1137820060270060402
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의공학회지
2006 Volume.27 No. 6 p.402 ~ p.408
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The Analysis of Stress and Variation of Cement Thickness as the Variation of Design Variables for Custom-Made Hip Implant
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Park H.-S.
Chun Heoung-Jae
Youn I.
Lee Moon-Kyu
Seo D.C
Choe Gwi-Won
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Abstract
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The choice of suitable hip implant is one of important factors in the total hip arthroplasty (THA). In clinical view point, an improper adaptation of hip implant might induce abnormal stress distribution to the bone, which can shorten the lifespan of replaced hip implant. Currently, interest in the custom-designed hip implants has increased as studies reveal the significance of geometric shape of patient’s femur in modeling and designing the implants. In this study, we have developed custom-designed hip implant models with various sizes, and analyzed the stress distribution in the bone and bone cement using the Finite Element Method. It was found that minimizing the gap between implant stem and femoral cavity is crucial to minimize the stress concentration in the bone
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KEYWORD
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implant, custom-made, hip, FEA, stress
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