Instrumented implant for measuring tibiofemoral forces

Kenton R. Kaufman, Nebojsa Kovacevic, Steven E. Irby, Clifford W. Colwell

Research output: Contribution to journalArticlepeer-review

83 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)667-671
Number of pages5
JournalJournal of Biomechanics
Issue number5
StatePublished - May 1996


  • Force transducer
  • Tibiofemoral force
  • Total joint arthroplasty

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation


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