Table 3 Radiographic assessment of preoperative, postoperative and the final follow-up data

GK (°)

PSO

62.26 ± 14.80*

24.61 ± 12.99^a

< 0.001

26.92 ± 16.00^b

< 0.05

37.65 ± 9.16*

2.31 ± 6.23

VCD

76.43 ± 17.45*

27.31 ± 14.01^a

< 0.001

29.60 ± 14.64^b

< 0.05

49.13 ± 9.87*

2.29 ± 4.02

LL (°)

PSO

-1.48 ± 8.32

-35.18 ± 25.84*^a

< 0.001

-34.47 ± 24.69*

0.338

33.69 ± 24.08*

-

VCD

1.15 ± 8.74

-43.78 ± 13.62*^a

< 0.001

-43.74 ± 13.36*

0.914

44.93 ± 11.73*

-

SVA (mm)

PSO

170.94 ± 36.98

58.37 ± 25.77^a

< 0.001

62.42 ± 25.72

0.265

112.57 ± 29.36

-

VCD

173.54 ± 55.30

62.71 ± 48.15^a

< 0.001

64.44 ± 49.39

0.574

110.83 ± 35.68

–

OA (°)

PSO

–

33.84 ± 5.23*

–

33.70 ± 5.51*

0.659

–

–

VCD

–

44.10 ± 8.14*

–

43.95 ± 7.97*

0.430

–

–

KPNS (°)

PSO

–

30.58 ± 11.62

–

34.49 ± 12.06^b

< 0.001

–

–

VCD

–

32.19 ± 11.98

–

35.60 ± 13.49^b

< 0.001

–

–

DIDW (°)

PSO

–

-6.45 ± 4.75

–

-6.32 ± 4.95

0.872

–

–

VCD

–

-8.26 ± 4.22

–

-7.98 ± 3.67

0.640

–

–

AIL (°)

PSO

–

19.76 ± 14.47

–

19.56 ± 13.85

0.454

–

–

VCD

–

13.11 ± 8.42

–

13.42 ± 7.81

0.200

–

–

PJA (°)

PSO

–

11.88 ± 5.51

–

14.24 ± 6.86^b

< 0.001

–

–

VCD

–

14.03 ± 6.96

–

16.33 ± 7.27^b

< 0.001

–

–