Postoperative Changes in Spinal Rod Contour in Adolescent Idiopathic Scoliosis

Abstract

We found a significant difference between pre- and postoperative rod contour, particularly for concave rods. Rod overcontouring (by ~20° for concave rod) resulted in high degrees of correction without loss of sagittal alignment. The resulting deformations are likely associated with substantial in vivo deforming forces.