Inclusion Criteria:  Subjects who diagnosed with Scheuermann's kyphosis or adolescent hyperkyphosis. Inıtial curve magnitude between 55-75° Patients who followed up at least 6 months Patients who wearing CAD-CAM (Computer-Aided Design&Computer-Aided Manufacturing) design TLSO(Thoraco-lumbo-sacral orthosis) kyphosis brace in 16 hours/day or more  Exclusion Criteria:  History of spinal surgery or trauma Patients has kyphosis due to congenital, neuromuscular, traumatic, tumor, infection causes Ankylosing spondylitis and other spondyloarthropathies. The lack of appropriate full-length lateral radiography with acceptable quality at the baseline or final assessment.