Fig. 1From: Postoperative proximal junctional kyphosis correlated with thoracic inlet angle in Lenke 5c adolescent idiopathic scoliosis patients following posterior surgeryA Spinal parameters in standing lateral radiographs. T means Thoracic vertebra. TIA means Thoracic inlet angle. LL means Lumbar lordosis. TK means thoracic kyphosis. GTK means global thoracic kyphosis. PI means Pelvic incidence. PT means Pelvic tilt. SS means Sacral slope. SVA means Sagittal vertical axis. B Figure about measurement of TIABack to article page