Skip to main content

Table 2 Pre- and post-operative coronal parameters and their changes between two groups

From: A novel integrated global coronal aligner helps prevent post-operative standing coronal imbalance in adult spinal deformity patients fused to pelvis: technical notes and preliminary results

Parameters IGCA Non-IGCA t/χ2 value P value
No. of patients 27 25   
CBD
 Preoperative 24.7 ± 20.3 17.4 ± 15.1 1.466 0.149*
 Postoperative 12.6 ± 6.4 18.3 ± 11.4 −1.364 0.179*
Major Cobb angle
 Preoperative 25.4 ± 14.1 23.2 ± 13.4 0.572 0.570*
 Postoperative 8.8 ± 7.5 9.1 ± 6.9 −0.196 0.845*
 Δ CBD 13.9 ± 18.6 −1.3 ± 14.2 3.274 0.002*
 Δ major Cobb angle 16.6 ± 10.8 14.1 ± 9.7 0.904 0.370
Imbalance: balance
 Preoperative 15:12 8:17 2.920 0.087#
 Postoperative 3:24 12:13 8.606 0.003#
  1. Results are given as the number or the mean ± standard deviation (SD) unless otherwise stated
  2. IGCA integrated global coronal aligner, CBD Coronal balance difference, PI-LL Pelvic incidence minus lumbar lordosis
  3. *independent samples of t test
  4. #Chi-square test