ナビゲーションシステムを用いた人工膝関節の術中動態解析

DOI Web Site 参考文献8件
  • 井上 貴之
    鳥取大学大学院工学研究科 機械宇宙工学専攻
  • 阿部 信寛
    川崎医科大学 スポーツ・外傷整形外科
  • 宮澤 慎一
    岡山大学大学院医歯薬学総合研究科 生体機能再生・再建学講座
  • 藤原 一夫
    岡山大学大学院医歯薬学総合研究科 運動器知能化システム開発講座
  • 中島 義和
    東京大学大学院工学系研究科 バイオエンジニアリング工学専攻
  • 杉田 直彦
    東京大学大学院工学系研究科 機械工学専攻
  • 光石 衛
    東京大学大学院工学系研究科 機械工学専攻
  • 尾﨑 敏文
    岡山大学大学院医歯薬学総合研究科 生体機能再生・再建学講座
  • 陳 中春
    鳥取大学大学院工学研究科 機械宇宙工学専攻

書誌事項

タイトル別名
  • Kinematic analysis of total knee joint by means of navigation system

抄録

For additional functionality of artificial knee joint, the kinematics of knee has been evaluated using 2D/3D image registration technique after total knee arthroplasty. To evaluate the knee kinematics of implant, it is important how to adjust the ligament balancing around knee joint during surgery. In the kinematics evaluation of image matching, it is difficult to feed back the ligament balancing of knee because the information from image matching will be available after surgery only. Therefore, we developed a CT-based navigation system with the function of measurement of knee motion during surgery, which has been normally applied to enhance the accuracy of implant setting for target bone. The kinematics of knee has been evaluated with position of implant setting and ligament balancing which were obtained by this system during surgical operation. As a result, (1) The knee kinematics showed different trends between bone and implant based coordinate system, (2) Increasing 2mm thickness of insert between femoral and tibia component of artificial knee joint, the anterior-posterior shift of implant with knee flexion was decreased by changing the ligament tension around knee joint. In conclusion, it is possible to measure the knee kinematics with consideration of ligament balancing using the developed navigation system during surgery.

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