Table 3.
Overall implant survival rate and 95% confidence interval at 5, 10 and 15 years (N = 40)
| Variable | 5-Year survival, % (95% CI) | 10-Year survival, % (95% CI) | 15-Year survival, % (95% CI) |
|---|---|---|---|
| Overall survival | 100 (91, 100) | 97 (83, 100) | 89.90 (58, 99) |
| Gender | |||
| Male | 100 (88, 100) | 100 (85, 100) | 100 (69, 100) |
| Female | 100 (69, 100) | 89 (52, 100) | 75 (19, 99) |
| Bearing surface | |||
| Resurfacing | 100 (84, 100) | 100 (83, 100) | 92(64, 99) |
| Metal on metal | 100 (29, 100) | 100 (16, 100) | – |
| Ceramic on ceramic | 100 (75, 100) | 100 (60, 100) | – |
| Ceramic on poly | 100 (29, 100) | 50 (2, 98) | – |
| Diagnosis | |||
| Ankylosing spondylitis | 100 (91, 100) | 100 (87, 100) | 100 (84, 100) |
| Juvenile chronic arthritis | 100 (77, 100) | 100 (48, 100) | 100 (3, 100) |
| Idiopathic osteonecrosis | 100 (77, 100) | 100 (16, 100) | – |
| Secondary postperthes | 100 (63, 100) | 100 (39, 100) | 100 (3, 100) |
| Steroid induced osteonecrosis | 100 (54, 100) | 100 (16, 100) | – |
| Post-traumatic | 100 (40, 100) | 100 (3, 98) | – |
| Dysplastic secondary arthritis | 100 (3, 100) | – | – |
| Idiopathic chondrolysis | 100 (3, 100) | 100 (3, 100) | 0 (0, 98) |
| Post-septic secondary arthritis | 100 (3, 100) | 0 (0, 98) | – |
| Enteropathicspondlyoarthropathy | 100 (3, 100) | 100 (3, 100) | 100 (3, 100) |
– Insufficient data