Table 2 Fracture pattern and union rate in patients with a comminuted femoral shaft fracture treated using an interlocking nail with and without an open cerclage wire

Classification

0.06

 32B

31

32

 32C

7

1

Fragment number

1.53 ± 0.79

1.24 ± 0.49

0.043

Fragment size (mm)

87.66 ± 30.40

66.09 ± 29.03

0.004

Proximal displacement (mm)

 Preoperative

21.64 ± 16.94

12.80 ± 7.50

0.006

 Postoperative

2.96 ± 1.88

7.51 ± 3.32

< 0.001

Distal displacement (mm)

 Preoperative

20.08 ± 13.52

13.05 ± 7.50

0.009

 Postoperative

3.57 ± 2.91

7.11 ± 3.26

< 0.001

Union within 24 months

22

24

0.180

Nail breakage

6

4

0.558