Figure 2

Sequential changes of the Cobb angle. The average Cobb angles in upright position before treatment, in hanging position, on initial brace wear, and at final follow-up were 27.3 ± 4.2°, 18.2 ± 4.0°, 14.7 ± 6.7°, and 28.6 ± 11.3°, respectively. The main curves were corrected by wear of the OMC brace better than hanging position. And OMC brace treatment could prevent the progression of curves during periods of growth.