Accurate measurement of three-dimensional knee replacement kinematics using single-plane fluoroscopy
Accurate measurement of three-dimensional knee replacement kinematics using single-plane fluoroscopy
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DOI：
10.1109/10.495283
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发表时间：
1996-06-01
影响因子：
4.6
通讯作者：
Hodge, WA
中科院分区：
文献类型：
--
作者：
Banks, SA;Hodge, WA
一个简单的扩展以前报道的对象识别技术已被用来实现一个六度的自由度的位置/方向估计的膝关节置换运动的测量从二维（2-D）透视图像。进行计算机建模研究和受控机械测试，以评估该技术的准确性。结果表明，膝关节旋转可以测量的精度约为1度，矢状面平移可以测量的精度约为0.5 mm。测量技术是唯一非常适合进行动态运动学测量的个人与膝关节置换术，并进行比较研究的科目与不同设计的膝关节置换术。
A simple extension of a previously reported object recognition technique has been used to implement a six-degree-of-freedom position/orientation estimator for the measurement of knee replacement motion from two-dimensional (2-D) fluoroscopic images. Computer modeling studies and controlled mechanical tests were performed to assess the accuracy of the technique. The results indicate that knee rotations can be measured with an accuracy of approximately one degree and that sagittal plane translations can be measured with an accuracy of approximately 0.5 mm. The measurement technique is uniquely well suited for performing dynamic kinematic measurements on individuals with knee replacements, and for performing comparative studies among subjects with different designs of knee replacements.