3-D Correction of Adolescent Idiopathic Scoliosis (AIS) With Differential Metals

This study is designed to evaluate the coronal, sagittal, and axial correction of deformity secondary to adolescent idiopathic scoliosis utilizing a technique employing a posterior spinal fusion construct utilizing rods of different material rigidity and asymmetric bends determined using computer-based software to pre-operatively template a best-fit rod contour from pre-operative radiographs. To further evaluate the changes in contour of the rods from the pre-operative templates to the post-implantation radiographs.