Table 1 Radiographic assessment of preoperative, postoperative and last follow-up data

158.97 ± 55.80

63.02 ± 37.58^a

66.72 ± 47.84^b

 < 0.001

8.30 ± 24.43

36.61 ± 13.73^a

38.23 ± 15.66^b

 < 0.001

51.24 ± 18.21

33.02 ± 11.45^a

35.96 ± 11.35^b

 < 0.001

43.63 ± 5.30

25.91 ± 8.48^a

27.21 ± 8.22^b

 < 0.001

19.67 ± 9.40

29.12 ± 8.82^a

28.13 ± 6.79^b

 < 0.001

41.74 ± 11.16

7.37 ± 7.46^a

8.67 ± 7.35^b

 < 0.001

25.17 ± 3.94

39.51 ± 5.65^a

37.59 ± 6.25^b

 < 0.001

28.08 ± 3.20

27.22 ± 4.01

26.41 ± 4.24^b

0.507