Instrumented implant for measuring tibiofemoral forces

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

Research output: Contribution to journalArticle

79 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)667-671
Number of pages5
JournalJournal of Biomechanics
Volume29
Issue number5
DOIs
StatePublished - May 1996

Keywords

  • Force transducer
  • Tibiofemoral force
  • Total joint arthroplasty

ASJC Scopus subject areas

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

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