Table 2 The clinical data of patients in two groups

Surgical time (min)

173.3 ± 20.8

179.8 ± 46.4

0.631

Blood Loss (ml)

323.4 ± 105.1

281.0 ± 84.2

0.336

Ambulation time (day)

6.7. ±1.4

3.8 ± 0.8

0.000

Duration of follow-up(m)

24.0 ± 5.7

25.8 ± 7.6

0.509

Fusion time(m)

4.3 ± 1.6

4.4 ± 1.4

0.917

 Preoperative

55.2 ± 19.1

61.4 ± 19.5

0.170

 Postoperative

21.8 ± 9.9^a

26.8 ± 6.2^a

0.144

 Final follow-up

11.4 ± 6.3^a

13.5 ± 4.3^a

0.371

 Preoperative

18.1 ± 8.2

16.3 ± 8.2

0.577

 Postoperative

−2.4 ± 2.6^a

− 2.1 ± 2.8^a

0.746

 Final follow-up

−1.0 ± 2.2^a

− 1.4 ± 2.5^a

0.732

 A week Post-op

3.4 ± 0.9

2.3 ± 0.9

 3-months Post-op

1.6 ± 0.7^b

1.1 ± 0.7^b

0.005

 Final follow-up

0.7 ± 0.5^b

0.6 ± 0.5^b

0.070

 Complication(donor-site)

3

0

0.569