A novel technique for intraoperative coronal alignment assessment in posterior spinal deformity surgery

Abstract Purpose: This study aimed to introduce a novel method for assessing intraoperative coronal alignment in posterior spinal deformity surgery and to investigate its feasibility and efficacy in preventing postoperative coronal imbalance (CIB). Methods: All enrolled patients underwent posterior spinal deformity surgery, with dot-line method employed to evaluate coronal alignment intraoperatively. Preoperative and postoperative radiographic and clinical parameters were analyzed. Additionally, patients were divided into type A, B, and C preoperatively, and subgroup analysis was conducted to further assess the