Iranian Journal of Orthopedic Surgery

Abstract Adolescent idiopathic scoliosis (AIS) is a three-dimensional spinal deformity causing physical/psychological burdens. Optimal preoperative planning enhances appearance while preserving spinal function. Corrective surgery restores spinal mobility and balance. In dual-curve cases, selective fusion corrects one curve, inducing spontaneous correction of the other—preserving spinal motion and attracting surgical interest. However, limited adoption persists due to insufficient data. This study evaluates selective thoracolumbar/lumbar fusion, detailing surgical outcomes and complications to guide surgeons in procedure selection. Evidence confirms selective thoracic fusion is effective and safe for AIS, offering significant correction, improved quality of life, and fewer complications versus extensive approaches. Future research should refine patient criteria and assess long-term effects.