1990 Cotrel-Dubousset instrumentation and vertebral rotation in adolescent idiopathic scoliosis

Description: J Bone Joint Surg Br. 1990 Jul;72(4):670-4. Cotrel-Dubousset instrumentation and vertebral rotation in adolescent idiopathic scoliosis.Cundy PJ, Paterson DC, Hillier TM, Sutherland AD, Stephen JP, Foster BK. Department of Orthopaedic Surgery, Adelaide Children's Hospital, Australia. We have studied 34 consecutive patients receiving Cotrel- Dubousset instrumentation for a single and flexible thoracic scoliotic curve, evaluating the rib hump deformity from a single CT scan through the apical vertebra of the curve. Using two measures of rotation we found a mean improvement of 25% in the rotation of the vertebra after operation. Any, usually minor, deterioration occurred in the first six months postoperatively, and there was no significant further deterioration in 19 patients assessed over two years after surgery. Cotrel-Dubousset instrumentation can produce a significant correction of vertebral rotation and of the associated rib hump deformity.