The HemiBridge™ System is indicated for progressive idiopathic scoliosis (Lenke Type 1A or 1B) in skeletally immature (Risser Grade 0 and triradiate cartilage open) patients by mechanically modulating spinal growth (hemiepiphysiodesis) and arresting spinal deformity progression without the need for spinal fusion. The HemiBridge™ System is intended to be placed at contiguous levels through an anterior thoracoscopic procedure on the convex side of a main thoracic curve that measures 25° to 40°, where the end of the vertebrae of the curve spans levels inclusive of or between T3 and L1. The HemiBridge™ System is intended for males and females with a chronologic age of 10 years and older. Females with an Atlas Matching bone age ≥ 8 years and 10 months not to exceed 13 years (or pre-menarche) and males with an Atlas Matching bone age ≥ 10 years not to exceed 15 years.