Outcomes of brace treatment for adolescent idiopathic scoliosis with curve magnitude of 41 to 50 degrees

Abstract

A total of 12 female patients was included in the analysis. The average age was 12.3 years (11-15) and the average Cobb angle was 45.0 degrees (41 to 50) before treatment. Risser sign was 0 in three, I in five, and II in four patients. There were eight thoracic, two thoracolumbar, and two double major curves. Initial correction rate by the brace was 35.5%. After an average follow-up period of 36 months, the average Cobb angle changed to 50.3 degrees. The curve of six patients (50%) was stabilized by the treatment. The curve of nine patients (75%) exceeded 45 degrees and three patients (25%) underwent surgery. Discussion For the curve magnitude of 25 to 40 degrees, the rate of the patients whose curve was stabilized by the brace treatment was 79% in our institution. Comparing with these results, the stabilization rate (50%) of the present study for the curve of 41 to 50 degrees was relatively low. However, the progression rate of such magnitude curve in the natural history was reported to be 70-90%. Conclusions