Table 1.
Comparison of demographics and risk factors between successful two-stage procedures (success group) and failed two-stage procedures (failure group).
| Parameter | Success Group n = 37 | Failure Group n = 24 | p-Value |
|---|---|---|---|
| Age | 65.81 (±11.05) | 72.67 (±8.24) | 0.018 * |
| Gender: female | 27 (73.0%) | 15 (62.5%) | 0.358 |
| male | 10 (27.0%) | 9 (37.5%) | |
| BMI | 27.92 (±6.45) | 29.33 (±5.36) | 0.372 |
| SSI | 6.50 (±2.38) | 7.54 (±2.79) | 0.126 |
| CCI | 3.24 (±2.02) | 5.46 (±2.89) | 0.002 * |
| Res. arthroplasty after primary THA | 18 (48.6%) | 5 (20.8%) | 0.034 * |
| Res. arthroplasty after revision THA | 19 (51.4%) | 19 (79.2%) | |
| Operation prior to res. arthroplasty | 2.30 (±1.79) | 3.88 (±2.88) | 0.022 * |
| Time between prim. implantation and res. arthroplasty (months) | 89.69 (±78.80) | 107.22 (±107.94) | 0.763 |
| Operation after res. arthroplasty | 1.51 (±0.96) | 1.25 (±1.87) | 0.472 |
| Prosthesis-free interval | 84 (45; 638) | - | |
| NPWT required after res. arthroplasty | 3 (8.1%) | 9 (37.5%) | 0.005 * |
BMI, body mass index; SSI, surgical site infection; CCI, Charlson comorbidity index; NPWT, negative-pressure wound therapy; Res., resection; THA, total hip arthroplasty; * p ≤ 0.05.