Periprosthetic fractures may be more likely in cementless femoral stems with sharp edges.

@article{Hu2010PeriprostheticFM,
  title={Periprosthetic fractures may be more likely in cementless femoral stems with sharp edges.},
  author={Kunzhong Hu and Xian-long Zhang and Junfeng Zhu and Chihsiung Wang and Wen-ting Ji and Xuedong Bai},
  journal={Irish journal of medical science},
  year={2010},
  volume={179 3},
  pages={
          417-21
        }
}
BACKGROUND Many contour designs have been developed to improve the femoral stem in cementless total hip arthroplasty. AIMS To assess the initial interfacial micromotion and stress distribution. METHODS The prosthesis-bone interfacial micromotions and stress distributions of four commonly used femoral stems were assessed by finite element simulation: Alloclassic, Ribbed Anatomic, VerSys, and Secur-Fit. The proximal interfacial micromotions and stress distributions were calculated under the… CONTINUE READING
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