Table 2 Spinal morphology parameters – comparison between preoperative and postoperative timepoints

TL/L Cobb angle (^o)

41.50 ± 14.56

14.49 ± 7.331

< 0.001*

13.15 ± 8.27

< 0.001*

MT Cobb angle (^o)

56.31 ± 15.83

18.95 ± 4.74

< 0.001*

18.13 ± 7.09

< 0.001*

PT Cobb angle (^o)

25.85 ± 11.52

14.31 ± 7.76

< 0.001*

13.82 ± 8.92

< 0.001*

TL/L AVT (mm)

−11.1 ± 19.24

− 7.57 ± 11.58

0.366

− 5.15 ± 13.6

0.085

MT AVT (mm)

42.3 ± 18.76

−10.42 ± 10.66

< 0.001*

11.4 ± 13.38

< 0.001*

TL/L AVR (^o)

7.35 ± 13.76

3.88 ± 8.27

0.029*

3.61 ± 9.94

0.025*

MT AVR (^o)

−14.72 ± 8.96

− 9.06 ± 7.54

0.001*

−10.96 ± 9.43

0.060

PT AVR (^o)

4.74 ± 7.46

0.61 ± 4.98

0.019*

3.99 ± 5.88

0.648

T1-T12 Kyphosis (^o)

29.88 ± 13.95

32.49 ± 9.95

0.299

36.08 ± 10.02

0.023*

L1-S1 Lordosis (^o)

57.02 ± 11.47

52.11 ± 9.64

0.005*

55.77 ± 10.43

0.534

MT Absolute Torsion (^o)

33.46 ± 11.88

21.07 ± 9.03

< 0.001*

26.75 ± 11.94

0.013*

Lateral Pelvic Tilt (mm)

5.19 ± 3.52

5.74 ± 3.78

0.308

4.98 ± 4.06

0.664

Sagittal Pelvic Tilt (^o)

6.21 ± 8.74

8.25 ± 8.95

0.079

6.76 ± 6.42

0.636

Pelvic Incidence (^o)

51.07 ± 10.66

50.26 ± 9.65

0.118

48.45 ± 9.92

0.054

Sacral Slope (^o)

44.85 ± 5.81

42.01 ± 4.93

0.008*

41.69 ± 6.07

0.002*