Figure 1 Coronal and sagittal parameters in all-spine X-ray. Case 1, an 11-year-old female diagnosed with AIS. (A) Anterior-posterior radiograph. The main curve was thoracic curve from T7 to T11, and the Cobb angle is 61°. Shoulder discrepancy and hip discrepancy were noted. No obvious vertebrae malformation was found. C7PL (C7 Plumb Line) and CSVL (Center Sacral Vertical Line) coincide, so TS (trunk shift) is 0 mm. (B) Lateral all-spine radiograph. Pelvic incidence (PI): the angle between center sacral vertical line and center of femur head. Upper thoracic kyphosis: the angle between upper endplate of T2 and lower plate of T5. Lower thoracic kyphosis: the angle between upper endplate of T5 and lower endplate of T12. Thoracolumbar lordosis: the angle between upper endplate of T10 and lower endplate of L2. Lumbar lordosis: the angle between upper endplate of T12 and upper endplate of S1. SVA (sagittal vertebrae axis): the vertical distance from C7PL to posterior border of S1 upper endplate.