Tribological testing of articular cartilage of the medial compartment of the knee using a friction simulator

  • L. McCann
  • , I. Udofia
  • , S. Graindorge
  • , E. Ingham
  • , Z. Jin
  • , J. Fisher

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

The aim of this study was to develop a tribological simulation of a unicondylar natural knee, to measure the friction and wear of articular cartilage (AC) against itself (AC-vs-AC) and against stainless steel (SS) simulating a hemiarthroplasty (AC-vs-SS). AC-vs-AC produced low levels of friction and no wear was found. AC-vs-SS showed higher levels of friction and significant AC wear. Using AC-vs-SS with elevated loading, the wear of AC was accelerated and through to bone. This study demonstrated the importance of contact stress in the design of a spacer hemiarthroplasty for the medial compartmental knee. Initial results showed the importance of contact mechanics, stress and biomaterial type in determining short-term tribological function and long-term clinical outcome of hemiarthroplasty. Crown

Original languageEnglish
Pages (from-to)1126-1133
Number of pages8
JournalTribology International
Volume41
Issue number11
DOIs
StatePublished - Nov 2008
Externally publishedYes

Keywords

  • Articular cartilage
  • Contact stress
  • Friction
  • Hemiarthroplasty
  • Knee
  • Wear

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