Between June 1958 and December 1991, 315 patients (217 male and 98 female, mean age = 17.8 +/- 5.5 years) affected by pectus excavatum (PE) were surgically treated, Most of the patients required operation for aesthetic reasons only (299 patients; 95 percent). The grade of PE (Chin classification) was I in 72 patients, II in 152, and III in the remaining 91. The surgical technique consisted of a double transversal sternotomy at the level of the lowest and highest part of the depression associated with a longitudinal sternotomy. A wedge resection of the ribs was then performed and the sternum was fixed using a stainless steel strut molded into a seagull wing prosthesis, The strut was removed 12 months postoperatively. There were no operative mortalities, Four patients had sternal wound infection that was successfully treated, The mean follow-up was 15.8 years per patient and was 60 percent complete. From the aesthetic point of view, the postoperative results were excellent in 246 patients (78 percent), good in 57 (18 percent), and poor in 12 (4 percent), All subjective symptoms, when present, disappeared after surgery. The seagull wing prosthesis appears to be safe,easy to implant and to remove, and comfortable for the patient. This technique has shown good long-term results independently of type of deformity and patient age
