Instrumented implant for measuring tibiofemoral forces
Instrumented implant for measuring tibiofemoral forces
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DOI：
10.1016/0021-9290(95)00124-7
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发表时间：
1996-05-01
影响因子：
2.4
通讯作者：
Colwell, CW
中科院分区：
文献类型：
--
作者：
Kaufman, KR;Kovacevic, N;Colwell, CW
对人体膝关节中发生的载荷进行实验测量将允许验证分析模型，并为全膝关节植入物的设计提供数据。研制了一种用于测量全膝关节置换术后动态胫股力和压力中心的传感器。传感器由一个标准胫骨部件组成，其中增加了四个单轴测力传感器和一个额外的胫骨托。使用可追溯至美国国家标准与技术研究所（NIST）的加载装置校准传感器。传感器的精度在1%以内，内/外侧位置为0.07 mm，前/后位置为0.24 m。
Experimental measurement of loads occurring in the human knee joint will allow validation of analytical models and provide data for the design of total knee implants. A customized transducer was developed to measure the dynamic tibiofemoral force and center of pressure after total knee arthroplasty. The transducer consists of a standard tibial component to which four uniaxial load cells and an additional tibial tray have been added. The transducer was calibrated using a loading device traceable to the National Institute of Standards and Technology (NIST). The transducer was accurate to within 1% in magnitude, 0.07 mm in medial/lateral location and 0.24 m in anterior/posterior location.