Fig. (7) The radiograph of the patient referred to in Fig. 1. After her father found that the curve progressed, her father instructed his daughter to perform the two poles exercises for about 10 minutes each day after dinner. Also, she was prescribed a pair of custom foot orthoses. After three months, in August 2013 (a), the Cobb angle was found to reduce to 9.7 degrees. Subsequent radiographs in June 2015 (b) and August 2016 (c), when the Risser stages were 0 and 3 respectively, showed that the Cobb angle remained stable, thus alleviating the worries of her father. Whether the curvature stabilized by itself or as a result of the intervention was, however, unknown.