Scoliosis is a lateral deviation of the spinal column from the midline that may or may not include rotation or deformity of the vertebrae. Postural scoliosis is a curve resulting from an incorrect relationship between the parts of the body and its center of gravity. This curvature is usually small and can be corrected with passive and active exercises. Clinically, postural scoliosis will correct when the patient bends, demonstrating that no fixed rotation is present in the spine. Structural scoliosis, however, cannot be corrected actively by a patient, indicating the presence of bony changes with fixed rotation toward the convexity of the curve. Structural scoliosis is classified into