Table 2 Comparison of preoperative radiographic parameters between two groups.

From: Orientation of L4 coronal tilt relative to C7 plumb line as a predictor for postoperative coronal imbalance in patients with degenerative lumbar scoliosis

 

Consistency pattern

Opposition pattern

P value

Patient no

37

40

 

Preoperative GCM (mm)

21.1 ± 17.4

18.1 ± 18.7

0.473*

Preoperative major Cobb angle (°)

22.9 ± 13.5

25.0 ± 13.7

0.497*

Preoperative L4 coronal tilt (°)

14.0 ± 8.3

11.4 ± 7.2

0.136*

Preoperative L5 coronal tilt (°)

9.2 ± 7.4

7.4 ± 5.3

0.221*

Incidence of coronal imbalance

40.5% (15/37)

27.5% (11/40)

0.227#

  1. GCM global coronal malalignment.
  2. *Independent t test.
  3. #Chi-square test.
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