Table 1.
Patient and demographic data.
| Parameters | Total | Group senior | Group trainee |
|---|---|---|---|
| THA | 488 | 341 | 147 |
| Gender (%M) | 203 (42%) | 139 (41%) | 64 (44%) |
| Mean age (years) | |||
| Mean ± SD [min; max] | 65 ± 12 [18; 88] | 66 ± 12 [18; 88] | 65 ± 13 [30; 87] |
| Mean BMI (kg/m2) | |||
| Mean ± SD [min; max] | 26 ± 4 [17; 44] | 26 ± 4 [17; 44] | 26 ± 4 [17; 36] |
| Etiology (%) | |||
| Primitive | 380 (78%) | 262 (77%) | 118 (80%) |
| ONFH | 60 (12%) | 42 (12%) | 18 (12%) |
| Dysplasia | 10 (2%) | 9 (3%) | 1 (1%) |
| DDH | 18 (3%) | 15 (4%) | 3 (2%) |
| Other | 20 (5%) | 13 (6%) | 7 (5%) |
| Mean pre-op HHS | |||
| Mean ± SD [min; max] | 50.5 ± 10 [6; 83] | 52 ± 10 [7; 83] | 47 ± 11 [6; 72] |
THA: total hip arthroplasty, M: male, BMI: body mass index, ONFH: osteonecrosis of the femoral head, DDH: developmental dysplasia of the hip, HHS: Harris hip score, SD: standard deviation.