Idiopathic scoliosis of developmental age (AIS) is the most vertebral deformity in the adolescent population, with a prevalence of 1-3%. The treatment of AIS depends on the morphology and extent of the curve and the growth potential residual, can range from simple clinical-radiological monitoring, to the use of braces to, in the most severe cases, correction surgical correction. The indication for surgical correction of AIS depends on the location, extent and flexibility of the scoliotic curve and not least on the patient's age or, better, the skeletal age. The primary goal of surgery is to correcting the deformity by preventing its progression, preserving as many motion segments as possible; secondarily, the surgery aims to restore the coronal and sagittal balance of the spine.