| Diagnosis | number | percent |
| OA | 170 | 90.4% |
| ON | 4 | 2.1% |
| RA | 10 | 5.3% |
| Other | 4 | 2.1% |
| Total | 188 | 100% |
| Prosthesis | number | percent |
| AGC (all poly) | 138 | 73.4% |
| AGG (metal tibia) | 49 | 26.1% |
| Other | 1 | 0.5% |
| Total | 188 | 100.0% |