Table 1 General patients data

Sex

34

23

 Male

20

11

P = 0.4323

 Female

14

12

Age (year)

4.83 ± 0.22

4.31 ± 0.28

p = 0.1458

Operation time (min)

62.21 ± 1.58

45.78 ± 1.96

p < 0.0001

X-ray exposure (shots)

21.85 ± 0.78

16.17 ± 0.73

p < 0.0001

Follow-up time (months)

20.41 ± 1.04

22.22 ± 1.23

p = 0.2699

Inpatient time (days)

4.62 ± 0.25

4.70 ± 0.27

p = 0.835