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Table 2 Changes in pre- and postoperative radiographic parameters pre-operative and postoperative data

From: Direct reduction of high-grade lumbosacral spondylolisthesis with anterior cantilever technique - surgical technique note and preliminary results

  Pre-operative (n = 11) Postoperative (n = 11) p value
Local parameters
 Slip percentage 60.0 (53.0, 62.0) 30.0 (23.0, 36.0) 0.003**
 Dubousset’s lumbosacral angle 84.1 (75.6, 92.3) 97.9 (92.5, 111.4) 0.003**
Pelvic parameters
 Pelvic tilt 24.2 (22.2, 30.5) 25.4 (15.8, 30.4) 0.131
 Pelvic incidence 62.1 (53.1, 80.8) 64.9 (52.1, 81.4) 0.059
 Sacral slope 32.3 (30.4, 49.1) 41.9 (35.9, 52.2) 0.091
Spinal parameters
 LL −49.4 (−70.3, −34.7) −57.7 (−70.0, −47.1) 0.013*
 PI-LL mismatch 16.0 (10.0, 26.3) 9.9 (0.0, 19.0) 0.021*
 SVA (mm) 36.9 (18.3, 59.8) 23.6 (0.1, 54.1) 0.213
Wilcoxon signed rank, median (IQR). *P < 0.05, **P < 0.01
  1. Abbreviations: LL Lumbar Lordosis; PI Pelvic Incidence.; SVA sagittal vertical axis