A new technique to measure the dynamic contact pressures on the Tibial Plateau

Jocelyn M. Cottrell, Paul Scholten, Tony Wanich, Russell F. Warren, Timothy M. Wright, Suzanne A. Maher

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Studies of the load transfer role of the meniscus have been limited to static experimental and analytical approaches. The objective of this study was to develop an experimental technique to allow the contact pressures on the tibial plateau of cadaveric knees to be measured under dynamic physiological loads. Accordingly, we adapted a load-controlled knee joint simulator to accept a cadaveric sheep knee, programmed the simulator with sheep gait kinematics data, and utilized a pressure sensor array to measure the contact pressure distribution on the lateral tibial plateau during gait. The technique was applied to six sheep knees that were tested intact and after meniscectomy. Meniscectomy resulted in a 267% increase in average contact pressure, a 117% increase in peak contact pressure, and an 80% decrease in contact area, all measured at the point of maximum peak contact stress in the gait cycle. It is envisaged that the experimental model herein developed will allow for the screening of candidate materials prior to more expensive and time-consuming animal models.

Original languageEnglish (US)
Pages (from-to)2324-2329
Number of pages6
JournalJournal of Biomechanics
Volume41
Issue number10
DOIs
StatePublished - Jul 19 2008
Externally publishedYes

Fingerprint

Pressure
Gait
Simulators
Knee
Sheep
Sensor arrays
Pressure sensors
Pressure distribution
Screening
Kinematics
Animals
Knee Joint
Biomechanical Phenomena
Theoretical Models
Animal Models

Keywords

  • Dynamic contact mechanics
  • Knee joint mechanics
  • Meniscus

ASJC Scopus subject areas

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

Cite this

Cottrell, J. M., Scholten, P., Wanich, T., Warren, R. F., Wright, T. M., & Maher, S. A. (2008). A new technique to measure the dynamic contact pressures on the Tibial Plateau. Journal of Biomechanics, 41(10), 2324-2329. https://doi.org/10.1016/j.jbiomech.2008.04.024

A new technique to measure the dynamic contact pressures on the Tibial Plateau. / Cottrell, Jocelyn M.; Scholten, Paul; Wanich, Tony; Warren, Russell F.; Wright, Timothy M.; Maher, Suzanne A.

In: Journal of Biomechanics, Vol. 41, No. 10, 19.07.2008, p. 2324-2329.

Research output: Contribution to journalArticle

Cottrell, JM, Scholten, P, Wanich, T, Warren, RF, Wright, TM & Maher, SA 2008, 'A new technique to measure the dynamic contact pressures on the Tibial Plateau', Journal of Biomechanics, vol. 41, no. 10, pp. 2324-2329. https://doi.org/10.1016/j.jbiomech.2008.04.024
Cottrell JM, Scholten P, Wanich T, Warren RF, Wright TM, Maher SA. A new technique to measure the dynamic contact pressures on the Tibial Plateau. Journal of Biomechanics. 2008 Jul 19;41(10):2324-2329. https://doi.org/10.1016/j.jbiomech.2008.04.024
Cottrell, Jocelyn M. ; Scholten, Paul ; Wanich, Tony ; Warren, Russell F. ; Wright, Timothy M. ; Maher, Suzanne A. / A new technique to measure the dynamic contact pressures on the Tibial Plateau. In: Journal of Biomechanics. 2008 ; Vol. 41, No. 10. pp. 2324-2329.
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