Mechanical safety evaluation of ceramic ball head for total hip replacement using finite element method
- Mechanical safety evaluation of ceramic ball head for total hip replacement using finite element method
- 한성민; 추준욱; 전흥재; 김정성; 최귀원; 윤인찬
- Total Hip Replacement(THR); ceramic ball head; Finite Element Method(FEM); mechanical safety
- Issue Date
- 의공학회지; Journal of Biomedical Engineering Research
- VOL 31, NO 6, 448-454
- 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.
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- KIST Publication > Article
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