Table 1.
Clinical information and reasons for revision for all 148 retrieved implants.
| Bearing Couple | Ceramic on Ceramic | Metal on Metal | Mann-Whitney U (p Value) |
|---|---|---|---|
| 12/14 Male Taper Material | Titanium Alloy | Titanium Alloy | |
| Clinical Information (Mean ± SD) | |||
| Age at implantation (year) | 55.5 ± 12.9 | 54.2 ± 13.1 | 0.52 |
| Height (cm) | 169 ± 11 | 167 ± 11 | 0.32 |
| Weight (kg) | 80 ± 19 | 75 ± 19 | 0.20 |
| BMI (kg/m2) | 27 ± 5 | 26 ± 5 | 0.22 |
| Implantation time (year) | 5.6 ± 4.6 | 5.8 ± 3.2 | 0.32 |
| Reason for Implant Revision (Number of Retrieved Implants) | |||
| Aseptic loosening | 33 | 46 | |
| Infection | 16 | 11 | |
| Periprosthetic femoral fracture | 6 | 5 | |
| Adverse local tissue reaction | / | 21 | |
| Pain | 2 | 3 | |
| Recurrent dislocation | 4 | 1 | |
| Total number of retrieved implants | 61 | 87 | |
| Heads including an adapter sleeve | / | 40 * | |
* All adapter sleeves were made of cobalt alloy.