The Coerel-Dubousset instrumentation is reported to give a correction of vertebral rotation and reduction in the cosmetic rib hump deformity. The Patients with idiopathic scoliosis were analyzed to evaluate the extent of correction of the vertebral rotation by this instrumentation. Each patients was assessed by standard radiographs and CT slice was made through the apical vertebra. The frontal plane upper curve correction averaged 63%, and thoracic kyphosis changed from an average of 15.2° to 23°.
The mean preoperative apical vertebral rotation was 19.9° and postoperatively it was 15.7°. The average rotational change was 4.5°, or 21.1%.
