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Table 2 Radiographic Parameters in UIV Group: Preoperative versus Postoperative

From: Proximal junctional fractures after long-segment instrumented fusion: comparisons between upper instrumented vertebrae and upper instrumented vertebrae + 1

Parameter

Preoperative

Postoperative

P values

PLK (degree)

2.43 ± 7.98

2.92 ± 8.99

0.856

LL (degree)

20.72 ± 16.50

24.34 ± 10.49

0.412

SS (degree)

22.14 ± 11.60

24.58 ± 10.66

0.493

PT (degree)

31.54 ± 12.98

28.03 ± 11.55

0.371

PI (degree)

53.68 ± 13.92

52.16 ± 12.21

0.716

PI-LL (degree)

32.96 ± 17.58

27.82 ± 12.95

0.299

SVA (mm)

78.62 ± 28.15

56.90 ± 18.51

0.006

CS (degree)

8.46 ± 7.80

6.65 ± 6.60

0.435

Spinopelvic realignment score

0.50 ± 0.76

1..05 ± 1.05

0.065

  1. PLK proximal local kyphosis; LL lumbar lordosis; SS sacral slope; PT pelvic tilting; PI pelvic incidence; SVA sagittal vertical axis; CS Cobb’s scoliosis