At the Istanbul University, Istanbul Faculty of Medicine, the Department of Orthopaedics and Traumatology, 25 cases of idiopathic scoliosis were treated with the CD method from 18 th Nowember 1988 to 31 st October 1989. Our cases were 16 female and 9 male patients. Their average age was 15.6 years old (range, 12-22). The anlga of scoliosis ranged from 40 degrees to 88 degrees (average, 62 degrees). There was a decrease or loss of thoracic ky-phosis, in 15 of 25 cases. The distribution of the decreased kyphosis angles in these cases were as follows :
20-10 degrees : 4 cases 1 0 - 0 degrees : 9 cases 0 degrees : 2 cases
Postoperatively, there was an average 67.4 % improvement (range, 39% - 93%) of the curve in the frontal plane.
Thoracic kyphosis angle in 15 cases, which was less than 20 degrees with the average 6.6 degrees, was measured postoperativly with the average 23 degrees (range, 8-36 degrees). These cases were followed up for a minimum of 4 months and maximum 1 year. The average loss of correction was 2.7 degrees.