Study Design: Retrospective comparative study.
Objectives: This study compares supine vs bending flexibility radiographs and evaluates their ability to predict residual postoperative lumbar curvature after selective thoracic fusion for Lenke 1 and 2 curves across different lumbar modifiers (A, B, and C) in adolescent idiopathic scoliosis (AIS).
Methods: This was a retrospective review of AIS Lenke 1 and 2 patients who underwent posterior fusion.