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首页> 外文会议>The 6th International Conference on Biomedical Engineering and Rehabilitation Engineering (ICBME '2002) May 27-30, 2002 Guilin, China >2-D/3-D registration for kinematics analysis of Total Knee Arthroplasty
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2-D/3-D registration for kinematics analysis of Total Knee Arthroplasty

机译：2-D / 3-D配准用于全膝关节置换术的运动学分析

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摘要

s In the domain of orthopaedic surgery, a knowledge of three-dimensional (3-D) knee prosthesis kinematics after Total Knee Arthroplasty (TKA) is highly important to validate innovative prosthesis designs and different surgical strategies. In general, X-ray fluoroscopy is suitable for observing dynamic movement of knee prosthesis. Recently, a model-based method, which fits CAD model of prosthesis into fluoroscopic image enables to estimate 3-D position and orientation of the knee prosthesis. We implemented this method and applied it to analyze TKA kinematics. We also developed interactive system (graphical user interface) that provides visualization of the 2D/3D model-matching process. In computer simulation, the mean out-of plane translational errors was approximately 2.0 mm, in-plane was about 0.1 mm and rotational errors was about 0.2 degree. In "in vitro" tests, the mean out-of plane translational errors was approximately 2.2 mm, in-plane was about 0.3 mm and rotational errors was about 0.7 degree. The outcome is a development of fluotoscopy-based system to analyze TKA kinematics and quantitative data to validate accuracy.
机译：■在整形外科领域，全膝关节置换术（TKA）之后的三维（3-D）膝关节假体运动学知识对于验证创新的假体设计和不同的手术策略非常重要。通常，X射线透视检查适合于观察膝关节假体的动态运动。最近，将假体的CAD模型拟合到荧光镜图像中的基于模型的方法能够估计膝盖假体的3D位置和方向。我们实施了该方法并将其应用于分析TKA运动学。我们还开发了交互式系统（图形用户界面），可提供2D / 3D模型匹配过程的可视化。在计算机仿真中，平均平面外平移误差约为2.0毫米，平面内约为0.1毫米，旋转误差约为0.2度。在“体外”测试中，平均平面外平移误差约为2.2毫米，平面内约为0.3毫米，旋转误差约为0.7度。结果是开发了一种基于透视的系统，以分析TKA运动学和定量数据以验证准确性。

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