Fig. 1From: How to make a more optimal surgical plan for Lenke 5 adolescent idiopathic scoliosis patients: a comparative study based on the changes of the sagittal alignment and selection of the lowest instrumented vertebraMeasurement of coronal parameters (including Cobb angle), sagittal parameters (including CL and T1 slope), descriptive parameters (including PrTK, TK, and LL), and the measurement of PJA [proximal junctional angle, the angle between the inferior endplate of the upper instrumented vertebra (UIV) and the superior endplate of the UIV + 2]Back to article page