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. 1996 May;29(5):667-71.
doi: 10.1016/0021-9290(95)00124-7.

Instrumented implant for measuring tibiofemoral forces

K R Kaufman  1 , N Kovacevic, S E Irby, C W Colwell
Affiliations

Instrumented implant for measuring tibiofemoral forces

K R Kaufman et al. J Biomech. 1996 May.

Abstract

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.

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