title: Results of CD operation in idiopathic scoliosis.
abstract: In order to evaluate the use of the CD system in scoliosis and kyphosis surgery we performed a partly retrospective, partly prospective study of our patient group. A total of 38 CD operations was performed in the period November 1986 until February 1991. In this group were 24 patients with idiopathic scoliosis, 4 male and 20 female, average age at operation 18 yrs 10 mo (12 yrs 10 mos-42 yrs 2 mos). In 22 patients follow-up was 6 months or more. In the right thoracic curves (n = 22) the preoperative Cobb angle was 59.5 degrees (48 degrees-90 degrees). The average angle after operation was 25.2 degrees (6 degrees-50 degrees), at 6 months 30.7 degrees and final curve 33.8 degrees (12 degrees-55 degrees) 20.1 months postoperatively (9 mos-48 mos). This is 43.2% correction with a loss of correction in the postoperative period of 14.4%. Left high thoracic curves were stiffer with a correction of only 12.8% in 3 patients at 18.3 months. In 4 patients with double curves a first stage Zielke operation was done before the CD operation. The mean curve of 67.8 degrees (45 degrees-108 degrees) was corrected to 20.5 degrees postoperatively with a final correction of 66.1% in 3 patients at 27 months. Without the preceding Zielke operation the mean curve of 44.5 degrees was corrected to 24 degrees at 6 months in 2 patients (46.1% correction). Derotation was evaluated clinically with the Bunnell method and measurement of gibbus height (14 patients had the derotation maneuver, 2 partial and 6 not).(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Department of Orthopedic Surgery, Academic Hospital Maastricht, The Netherlands.
authors.forename: A
authors.initials: A
authors.lastname: van Ooy
authors.forename: C W
authors.initials: CW
authors.lastname: Geukers
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D016268:Internal Fixators; D008297:Male; D011183:Postoperative Complications / Q000209:etiology; D011446:Prospective Studies; D011859:Radiography; D012189:Retrospective Studies; D012600:Scoliosis / Q000000981:diagnostic imaging / Q000601:surgery*; D013123:Spinal Fusion / Q000295:instrumentation*