Tvventythree patients ( 12 men, 11 women; mean age 23 ) diagnosed as having segmentary kyphosis due to either congenital kyphoscoliosis, or POTT's disease, or fracture sequel were operated from May 1991 to July 1993 in SSK İstanbul Hospital II nd Orthopedics and Traumatology Clinic. Using posterior approach techniques vvedge osteotomy, instrumentation, and fusion operations were performed. Eighteen patients out of 23 were evaiuated in December 1993 and included in the study. Longest follow-up period was 25.6 months, shortest was 6 months. Pre-operative mean kyphosis angle was 64.2 degrees, andpostoperative was 20.3 degrees. Except one patient no neu rologic deficit was detected postoperatively, and patients did not complain of pain in the latest follow-ups. Fusion occurred in ali cases within six months. Problems related to instrumentation material was not seen. This procedure with proper operative technique is as sufficient as anterior approach is, and does not necessitate two separate operations as anterior approach does. For this reason, this procedure is an alternative method to anterior approach for patients with rigid localized kyphotic deformity.