In order to evaluate the difficulties of treatment of associated scoliosis and congenital heart disease (C.H.D.), 44 patients who have been treated between 1970 and 1988 were reviewed. The scoliosis was idiopathic in 30 cases, congenital in 11, neurologic in 3. There were 27 females and 17 males. Twenty one patients had a cyanotic C.H.D. (twelve tetralogies of Fallot). No relation was found between the side of the cardiac approach and the side of the thoracic curves. Three cases of right aortic arch with two left thoracic scolioses were noted. Associated anomalies were encountered in 60 p. 100 of cases. The analysis of old chest X-rays, revealed that the scoliosis was already present an average of 5 years before the first orthopaedic consultation. Eight patients had an orthopaedic treatment; in ten cases surgery was decided but not performed. Twenty six patients were operated. (22 posterior and six anterior procedures). The average angulation was 55 degrees pre-operatively, 30 degrees post-operatively and 40 degrees at a 40 months follow-up. In five cases a pseudarthrosis led to re-intervention. One patient died during a posterior procedure, an other post-operatively. Two patients had a severe complication (one heart arrest; one gaz-embolism) but recovered. The surgical prognosis can be evaluated on an original scale including different cardiac parameters, and the importance of the planned surgical procedure. Under a limited mark, no serious complications occurred. In conclusion, a closed collaboration between pediatricians and the orthopaedic team, should lead to more precocious screening of scoliosis in cardiologic children and before the orthopaedic procedure, to a more precise risk factors evaluation.