Table 2.
Evaluation among hips without pseudotumors, with pseudotumors but no revision surgery, and with revision surgery for adverse reactions to metal debris. ARMD, adverse reactions to metal debris; PT, pseudotumor; PT−, hips without PTs; Not rev. with PT+, hips with PTs but no revision surgery; Revision for ARMD, hips with revision surgery for ARMD.
| PT- (48 Hips) |
Not Rev. with PT+ (14 Hips) |
Rev. for ARMD (7 Hips) |
p | |
|---|---|---|---|---|
| female: hip (%) | 41(85.4%) | 13(92.9%) | 6 (85.7%) | 0.8647 |
| age (years) | 60.4 ± 9.1 | 61.9 ± 7.8 | 57.6 ± 11.5 | 0.8501 |
| BMI (kg/m2) | 24.5 ± 4.0 | 24.5 ± 4.5 | 22.5 ± 2.8 | 0.3739 |
| head diameter 36 mm: hip (%) | 44 (91.7%) | 14 (100%) | 7 (100%) | 0.7911 |
| cup inclination angle (°) | 46.3 ± 6.8 | 47.7 ± 7.4 | 57.8 ± 5.8 | 0.0031 |
| cup anteversion angle (°) | 19.1 ± 5.7 | 18.0 ± 7.6 | 19.6 ± 5.6 | 0.6833 |
| ratio of femoral offset | 0.932 ± 0.071 | 0.787 ± 0.048 | 1.043 ± 0.024 | 0.0463 |
| observed PT after primary arthroplasty (years) | 6.4 ± 2.8 | 4.2 ± 1.3 | 0.3025 | |
| JOA score at final follow up | 81.0 ± 14.0 | 82.4 ± 13.4 | 82.0 ± 10.9 | 0.9195 |