Effect of microseparation on contact mechanics in metal-on-metal hip replacements-A finite element analysis.

@article{Liu2015EffectOM,
  title={Effect of microseparation on contact mechanics in metal-on-metal hip replacements-A finite element analysis.},
  author={Feng Liu and Sophie Williams and John Berton Fisher},
  journal={Journal of biomedical materials research. Part B, Applied biomaterials},
  year={2015},
  volume={103 6},
  pages={1312-9}
}
Some early failures of metal-on-metal (MoM) hip replacements associated with elevated wear have caused concerns for the use of this bearing combination. Simulator studies have shown that microseparation and its associated rim contact and edge loading may produce the most severe wear in MoM bearings. It is generally recognized that this high wear can be attributed to the high contact stress of the head on the rim of the cup. In this study, an improved finite element contact model that… CONTINUE READING