Article: PDF OnlySagittal Plane Analysis in Idiopathic Scoliosis Patients Treated with Cotrel-Dubousset InstrumentationBRIDWELL, KEITH H., MD*; BETZ, RANDALL, MD†; CAPELLI, ANN M., RN*; HUSS, GAIL, RN.†; HARVEY, CHARLES, MD†Author Information Department of Orthopedic Surgery,* Washington University, and the Department of Orthopedic Surgery,† Shriners Hospital for Crippled Children, Philadelphia, Pennsylvania. Spine: September 1990 - Volume 15 - Issue 9 - p 921-926 Buy Abstract One hundred sixty patients with idiopathic scoliosis underwent preoperative and postoperative sagittal plane analysis of the thoracic spine, thoracolumbar junction, and lumbar spine. The data suggest that mild to moderate improvements in thoracic hypokyphosis are possible. When crossing the thoracolumbar junction, reversal of rod bend and reversal of hooks on the denotation rod appears to provide the most physiologic sagittal contour. Cotrel-Dubousset instrumentation to the mid and distal lumbar spine can preserve and, at times, enhance lumbar lordosis. © Lippincott-Raven Publishers.