Correction results on inclined x-ray image after 33.55 ± 22.52 months Indicator Pre-surgery Post-surgery P value Spinal axis difference via C7 1.16 ± 0.16 (cm) 0.34± 0.11 (cm) p<0.001 Kyphotic angle of thoracic spine T5-T12 19.45 ± 10.6 (degree) 22.15± 5.87 (degree) p<0.01 Kyphotic angle of lumbar spine T10-L2 5.68 ± 5.87 (degree) 3.6 ± 1.65 (degree) p<0.001 Lumbosacral curvature (L1-S1) - angle 35.95±11.43 (degree) 40.58± 13.11 (degree) p<0.001 Deflection angle of disc under the position of bone welding 16.48±9.36 (degree) 13.55±9.78 (degree) P<0.001 Total number of patient 40 patients Patients after surgery 33.55 ± 22.52 months, the kyphotic angle of thoracic spine T5-T12 still maintained and improved 22.15 degrees compared to pre-surgery.