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The authors summarize a 32-year experience in the study and in the non-operative approach of pectus carinatum and pectus excavatum. Data of 4,012 patients with pectus deformities were collected from 1977 to January 2009, allowing evaluation on the etiology, pathogenesis and treatment of these deformities. Growth disturbances of anterior chest wall bones and cartilages were detected in imaging studies. Heredity, and biomechanical factors, like respiratory disturbances and scoliosis were noticed in more than 40% of the patients. The method of dynamic remodeling of the thorax - compressive orthoses simultaneously to exercises practice - was indicated in 2453 patients. Concomitant treatment with bending brace was provided in patients with 20° to 52° scoliosis. Of pectus patients with treatment indication, 1717 returned for re-evaluation: 1632 children and adolescents and 85 adults. Good results were seen in 60.6% of children and adolescents and in 27% of adults treated. No scoliosis patient presented curve worsening, and a case of 52° presented an improvement of 20° in the scoliosis with the treatment. Disturbances in the growth of the sternum and costal arches, as well as biomechanical factors related to the pathogenesis of pectus deformities, demonstrate how these deformities are correlated to orthopaedics. Appropriate evaluation of the anterior chest wall and concomitant treatment with bending brace are recommended in the presence of scoliosis. The dynamic remodeling method of the thorax requires a protocol of medical actions for a successful treatment.

ORTHOPEDIC APPROACH TO PECTUS DEFORMITIES: 32 YEARS OF STUDIES