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 language | English |
|---|---|
| Pages (from-to) | 1126-1133 |
| Number of pages | 8 |
| Journal | Tribology International |
| Volume | 41 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 2008 |
| Externally published | Yes |
Keywords
- Articular cartilage
- Contact stress
- Friction
- Hemiarthroplasty
- Knee
- Wear
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