Coronal balance in idiopathic scoliosis: a radiological study after posterior fusion of thoracolumbar/lumbar curves (Lenke 5 or 6)

Purpose To explore the compensation mechanisms of immediate postoperative coronal imbalance (CIB) and identify the correlation between preoperative lumbosacral obliquity and postoperative CIB in patients with Lenke 5/6 adolescent idiopathic scoliosis (AIS) during a 2-year follow-up period.