title: Cotrel-Dubousset instrumentation in idiopathic scoliosis a 5-year follow-up.
abstract: The results of Cotrel-Dubousset instrumentation in 50 patients with idiopathic scoliosis were evaluated. The patients were followed for 24 to 108 months with a mean follow-up of 5 years. Their average age was 15 years and 3 months. The scoliotic curves were classified according to King et al. There were 4 type I, 20 type II, 10 type III, 10 type IV and 1 type V. Five curves could not be included in this classification: 2 double lumbar, 1 right lumbar and 2 left thoracic curves. Coronal plane analysis showed an average postoperative correction of 56% for thoracic curves and 57% for lumbar curves. The loss of correction at the most recent follow-up was 14% and 15%, respectively. Higher corrections were obtained in King types III and IV than in types I and II. Mild increase of thoracic kyphosis was noted in previously hypokyphotic curves. The normal sagittal curve in the lumbar spine was maintained at the most recent follow-up. There were no major neurological deficits. A symptomatic pseudarthrosis developed in one patient with a concomitant L5-S1 spondylolisthesis. Another patient developed a delayed deep wound infection that resolved after the instrumentation was removed. The data from this study suggest that Cotrel-Dubousset instrumentation achieves a satisfactory correction of the curves with an acceptable loss of correction over time. The system also preserves lumbar lordosis when fusion to the lower lumbar spine is required.
authors.affiliation: Department of Orthopedic Surgery, Hospital Central de Asturias, Oviedo, Spain.
authors.forename: S A
authors.initials: SA
authors.lastname: Antuña
authors.forename: J G
authors.initials: JG
authors.lastname: Méndez
authors.forename: J C
authors.initials: JC
authors.lastname: López-Fanjul
authors.forename: J
authors.initials: J
authors.lastname: Paz Jiménez
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007738:Kyphosis / Q000209:etiology; D008141:Lordosis / Q000601:surgery; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery; D008297:Male; D009984:Orthopedic Fixation Devices / Q000009:adverse effects; D017060:Patient Satisfaction; D011542:Pseudarthrosis / Q000209:etiology; D011859:Radiography; D012008:Recurrence; D012600:Scoliosis / Q000145:classification / Q000000981:diagnostic imaging / Q000601:surgery*; D013168:Spondylolisthesis / Q000601:surgery; D013530:Surgical Wound Infection / Q000209:etiology; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery