Abstract
Wear on alumina / UHMWPE-THP decreased by 25-30% of that on metal / UHMWPE in hip simulator test and clinical results. Wear on THP of alumina / alumina was near zero in hip simulator test. In knee simulator test, UHMWPE wear against alumina decreased to 1/10 of that against metal. Clinically we have no revision case due to PE wear problems for 23 years. In retrieved cases, UHMWPE surface against alumina was very smooth. On UHMWPE surface against metal, many fibrils and scratches were found. In IBBC loosening in acetabulum occurred in 2.5% in 268 joints in only early cases at 16 to 14 years after THA. Only one joint was revised. At revision THA with massive bone defect, HA granules were filled. Socket migrations in two joints and partial spaces in two joints occurred in total 40 joints at 17 to 15 years. Bioceramics was found to be indispensable in enduring total joint arthroplasty.
| Original language | English |
|---|---|
| Pages (from-to) | 735-754 |
| Number of pages | 20 |
| Journal | Key Engineering Materials |
| Volume | 240-242 |
| DOIs | |
| State | Published - 2003 |
| Event | Proceedings of the 15th International Symposium on Ceramics in Medicine; The Annual Meeting of the International Society for Ceramics in Medicine - Sydney, NSW, Australia Duration: Dec 4 2002 → Dec 8 2002 |
ASJC Scopus Subject Areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
Keywords
- Bioceramics
- Bone Cement
- Bone substitute
- Cementless
- Total joint arthroplasty
- Wear