Curve position Cobb angle before surgery Cobb angle after surgery Correction effect P value T2-T5 14.65 ± 8.15 degree 4.47 ± 3.82 degree 67.39 ± 20.85 (%) p<0.001 T5-T12 43.45 ± 17.90 degree 9.55 ± 7.60 degree 78.54 ± 13.76 (%) p<0.001 L1-S1 28.40 ± 13.34 degree 5.62 ± 6.15 degree 79.40 ± 17.55 (%) p<0.001 Main curve 55.6 ±12.70 degree 11.5 ± 7.56 degree 79.68±11.72 (%) p<0.001 Total 40 patients Surgery with a full - pedicle screw configuration could correct the high thoracic spine curve to be 67.39%.