J024053 ショート型人工股関節ステムの初期固定性評価([J024-05]骨の臨床評価・解析)

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書誌事項

タイトル別名
  • J024053 Primary Stability Evaluation for Short Stem Hip Implant

抄録

In total hip arthroplasty, the cementless femoral stem implants have been used. Initial stability of a cementless femoral stem depends on the mechanical interlocking of the stem by press-fitting into the femoral canal. The movement of the stem relative to the femur occurs when the implant is subjected to a load. The inducible movements at the implantbone interface is defined as micromotion. It has been suggested that the use of a short stemmed implant could conserve proximal femur and reduce the extent of proximal stress shielding. However, it has little reports on the primary stability of the short stemmed implant. The aim of this study is to examine the primary stability of the short stemmed implants using the finite element analysis. The finite element model of the short stemmed implant inserted into the femur with the same alignment as the standard stemmed implant was created to compare the primary stability between the short stemmed implant and the standard stemmed implant. The maximum load during walking was applied to the stem. The micromotion was examined at both the short stemmed implant and the standard stemmed implant.

収録刊行物

  • 年次大会

    年次大会 2013 (0), _J024053-1-_J024053-5, 2013

    一般社団法人 日本機械学会

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