Characteristics on inclined x-ray film Indicators in inclined X-ray image Average value Spinal axis difference via C7 1.16 ± 0.16 cm Kyphotic angle of thoracic spine T5-T12 19.45 ± 10.6 degree Kyphotic angle of lumbar spine T10-L2 5.68 ± 5.87 degree Lumbosacral curvature (L1S1) - angle 35.95 ± 11.42 10 degree Total number of patient N=40 The patient had an average kyphotic angle of the thoracic spine of 19.45 degrees, the average kyphotic angle transition area of 5.68 degrees.