Table 1 Patient and surgical characteristics and outcomes of the two groups

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)