Twenty four patients with unstable dorsolumbar spine fractures were treated with C-D pedicular screw from March 1987 to Dec. 1988 in Seoul National university Hospital and 19 patients were followed-up more than 4 months, average 7.9 months. The results of these 1 9 patients were compared with those treated with Harrington SSI from Feb. 1985 to March 1987 and following conclusions are obtained. 1. The average fixation with C-D pedicular screw was 2 segments. Even the short segments fixation, C-D pedicular screw gave better correction and stability of fractures as compared with Harrington SSI. 2. Anatomical reduction with restoration of normal spinal sagital curvature was possible using C-D pedicular screw. 3. C-D pedicular screw permitted early ambulation with minumum immobilization and slight loss of correction.