RESUMO
Objective To observe the therapeutic effects of Cheneau orthosis with different pressure areas on the patients with adolescent idiopathic scoliosis. Methods Thirty patients with adolescent idiopathic scoliosis who had apex vertebraes below T6 were included, and randomly divided into group A in which patients wore orthosis spanning across 3 vertebra, and group B in which patients wore orthosis spanning across 5-6 vertebra. All patients were assessed with regard to Cobb degree, apex vertebrae rotary degree and pain index after wearing the orthosis. Results The rectified ratio of Cobb degree were 17% and 29% in groups A and B, respectively. There was a statistical difference between the 2 groups(P<0.05). No statistical difference was found between the 2 groups in terms of apex vertebrae rotary degrees(P>0.05). Pain index was 5.00 in group A, and 2.07 in group B, which was statistically different (P<0.05). Conclusions Increasing pressure points' areas of Cheneau orthosis properly can improve more effectively the lateral curvature angle of the patients with adolescent idiopathic seoliosis.