Nault ML, Beauséjour M, Roy-Beaudry M, et al. - In this study, a model of adolescent idiopathic scoliosis (AIS) progression was designed to prognosticate Cobb angle at full skeletal maturity, based on curve type, skeletal maturation, and 3D spine parameters available at first visit. Between 2006 and 2010,, a prospective cohort of AIS patients at first orthopedic visit was recruited all with 3D reconstructions. Researchers collected measurements of five types of descriptors: angle of plane of maximum curvature, Cobb angles, 3D wedging, rotation, and torsion. A predictive model of spinal curve progression in scoliosis based on first-visit information was developed. At first visit, the model will assist the treating physician to initiate appropriate treatment.