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Table 2 Spinal morphology parameters – comparison between preoperative and postoperative timepoints

From: Adolescent idiopathic scoliosis: evaluating perioperative back pain through a simultaneous morphological and biomechanical approach

  Preoperative 6 weeks P 6 months P
TL/L Cobb angle (o) 41.50 ± 14.56 14.49 ± 7.331 < 0.001* 13.15 ± 8.27 < 0.001*
MT Cobb angle (o) 56.31 ± 15.83 18.95 ± 4.74 < 0.001* 18.13 ± 7.09 < 0.001*
PT Cobb angle (o) 25.85 ± 11.52 14.31 ± 7.76 < 0.001* 13.82 ± 8.92 < 0.001*
TL/L AVT (mm) −11.1 ± 19.24 − 7.57 ± 11.58 0.366 − 5.15 ± 13.6 0.085
MT AVT (mm) 42.3 ± 18.76 −10.42 ± 10.66 < 0.001* 11.4 ± 13.38 < 0.001*
TL/L AVR (o) 7.35 ± 13.76 3.88 ± 8.27 0.029* 3.61 ± 9.94 0.025*
MT AVR (o) −14.72 ± 8.96 − 9.06 ± 7.54 0.001* −10.96 ± 9.43 0.060
PT AVR (o) 4.74 ± 7.46 0.61 ± 4.98 0.019* 3.99 ± 5.88 0.648
T1-T12 Kyphosis (o) 29.88 ± 13.95 32.49 ± 9.95 0.299 36.08 ± 10.02 0.023*
L1-S1 Lordosis (o) 57.02 ± 11.47 52.11 ± 9.64 0.005* 55.77 ± 10.43 0.534
MT Absolute Torsion (o) 33.46 ± 11.88 21.07 ± 9.03 < 0.001* 26.75 ± 11.94 0.013*
Lateral Pelvic Tilt (mm) 5.19 ± 3.52 5.74 ± 3.78 0.308 4.98 ± 4.06 0.664
Sagittal Pelvic Tilt (o) 6.21 ± 8.74 8.25 ± 8.95 0.079 6.76 ± 6.42 0.636
Pelvic Incidence (o) 51.07 ± 10.66 50.26 ± 9.65 0.118 48.45 ± 9.92 0.054
Sacral Slope (o) 44.85 ± 5.81 42.01 ± 4.93 0.008* 41.69 ± 6.07 0.002*
  1. All results are shown as mean ± standard deviation. TL/L Thoracolumbar/lumbar, MT Main thoracic, PT Proximal thoracic, AVT Axial vertebral translation, AVR Apical vertebral rotation. A negative represents a translation towards the left for both apical translations, a left trunk shift and a right handed rotation when it comes to the apical vertebral axial rotation. P values are given in regards to the preoperative and their associated postoperative time point values. Paired Student’s t-test, * = significance was reached when p < 0.05