Table 1 Patient and surgical characteristics and outcomes of the two groups
| Characteristic | Group A (n = 52) | Group B (n = 57) |
|---|---|---|
| Sex (male) | 30 (57.7 %) | 36 (63.2 %) |
| Age at initial operation (years) | 49.9 ± 15.9 (20–71) | 50.5 ± 16.1 (21–73) |
| Operation time (min) | 215.5 ± 35.0 (146–276) | 222.6 ± 39 (157–279) |
| Intraoperative bleeding (ml) | 520.1 ± 59 (250–1000) | 522.3 ± 54 (253–1000) |
| Time to abscess disappearance (postoperative months)* | 7.4 ± 0.7 (6–12) | 5.4 ± 0.6 (5–10) |
| Time to bone fusion (postoperative months)* | 8.9 ± 0.6 (6–12) | 6.4 ± 0.5 (5–10) |