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Table 2 Comparison of radiographic data between the two groups

From: A novel posterior multiple screws distraction reducer system versus anterior release, posterior internal distraction, and subsequent spinal fusion for severe scoliosis

  MSDR ARPIDF p-value
Cobb angle of the major curve (°)
 Preoperative 96.2 ± 5.9 97.3 ± 6.5 0.60
 Postoperative 22.9 ± 3.5 21.1 ± 2.4 0.08
 Immediate postoperative correction rate (%) 76.5 ± 6.8 78.0 ± 9.2 0.58
 Most recent follow-up 25.1 ± 3.7 24.6 ± 4.1 0.70
 Correction rate at most recent follow-up (%) 74.1 ± 8.8 75.1 ± 10.5 0.89
 Loss of correction 2.5 ± 1.2 2.8 ± 1.6 0.52
Thoracic kyphosis (°)
 Preoperative 17.2 ± 10.2 20.1 ± 12.2 0.83
 Postoperative 24.9 ± 5.3 25.4 ± 6.2 0.44
 Most recent follow-up 23.2 ± 4.6 24.6 ± 7.0 0.51
Coronal imbalance (mm)
 Preoperative 18.1 ± 8.5 19.4 ± 7.3 0.32
 Postoperative 17.1 ± 7.3 18.4 ± 8.1 0.33
 Final follow-up 15.3 ± 7.5 16.9 ± 8.2 0.20
Sagittal imbalance (mm)
 Preoperative 18.0 ± 10.2 18.3 ± 11.2 0.81
 Postoperative 17.1 ± 8.3 17.4 ± 8.7 0.85
 Final follow-up 13.3 ± 6.2 15.1 ± 9.4 0.63
Shoulder imbalance (mm)
 Preoperative 42.7 ± 10.9 45.1 ± 12.3 0.54
 Postoperative 21.6 ± 6.8 23.4 ± 7.5 0.45
 Final follow-up 18.4 ± 6.1 19.2 ± 7.2 0.72
  1. MSDR multiple screws distraction reducer system, ARPIDF anterior release, posterior internal distraction, and subsequent spinal fusion