Surgical treatment of thoracolumbar spine fractures with transpedicular screw system have as several advantages such as short segmental fixation and early mobilization of the patient. The authors analysed 43 cases of thoracolumbar fracture treated with transpedicular screws at the department of orthopaedic surgery of Ansan Hospital, Korea University from January, 1988 to July, 1991. The obtained results were as follows; 1. The level of injury was 16 cases (37.2%) of Ll, 13 cases (30.2%) of T12, 5 cases (16.7%) of L2, 4 cases (6.9%) of L3, and the least 2 cases (4.7%) of L5. 2. The associated injuries were shown in 8 cases such as calcaneal fracture, lateral malleolar fracture, Colles fracture. 3. The mean anterior vertebral height was 59.896 preoperatively, 87.8% postoperatively and 84.3% at the time of final follow up. 4. The mean degree of kyphosis was 23.2 preoperatively, 6.5 postoperatively and 8.4 finally. 5. The incomplete neurologic injury was shown in 6 cases (13.9%) and complete was one case(2.3%). After decompression, 4 cases of incomplete injury recovered completely and 2 cases partially and 1 case of complete injury was not recovered. 6. The complications were root irritation in 2 cases, screw breakage in 3 cases and screw loosening in 1 case and screw breakage and loosening occured between 6 months and 9 months postoperatively.