A, Multiple congenital anomalies of thoracic spine, including hemivertebra on convex side of curve and long unilateral unsegmented bar on concave side (arrows), in 2½-year-old girl with 87-degree scoliosis. B, At 6-year follow-up, curve is corrected to 65 degrees. Length of large central, unilateral segmented bar from T5 to T11 on concave side of curve (arrows) compared preoperatively and postoperatively suggests growth on concave side of curve.