Table 1 The comparison of preoperative and intraoperative data between the sinus tract group and non-sinus tract group

Age, yrs. (mean ± SD)

59.46 ± 16.93

63.48 ± 11.64

0.085^a

Male, n (%)

26 (50.0%)

19 (34.5%)

0.106^b

BMI, kg/m² (mean ± SD)

26.29 ± 5.63

26.82 ± 4.17

0.581^a

Median CCI, (IQR)

3 (2, 4)

3 (2, 4)

0.317^c

Joint (Hip), n (%)

17 (32.7%)

12 (21.8%)

0.206^b

Revision, n (%)

12 (23.1)

8(14.5)

0.258^b

PJI type, n (%)

0.182^b

Early PJI

11 (21.2%)

14 (25.5%)

Acute hematogenous PJI

16 (30.8%)

24 (43.6%)

Chronic PJI

25 (48.1%)

17 (30.9%)

Culture positive, n (%)

36 (69.2%)

36 (65.5%)

0.677^b

Organism

0.265^d

 Staphylococcus (MR)

12 (21.3%)

10 (18.2%)

 Staphylococcus (MS)

3 (5.8%)

5 (9.1%)

 Gram-negative

6 (11.5%)

5 (9.1%)

 Other pathogens

6 (11.5%)

13 (23.6%)

 Polymicrobial

9 (17.3%)

3 (5.5%)

 Culture negative

16 (30.8%)

19 (34.5%)

Modular exchange, n (%)

34 (65.4%)

43 (78.2%)

0.141^b

Topic antibiotics, n (%)

9 (17.3%)

12 (21.8%)

0.557^b

Median follow-up, yrs. (IQR)

3.18 (1.80, 7.68)

5.38 (2.42, 7.98)

0.182^c