The problem of the complete correction or cure of structural scoliosis is still unsolved. Thus far treatment has been directed toward, and necessarily limited to, reducing the curvature, improving the appearance of the back and maintaining that improvement. There are various methods of treatment whereby improvement may be obtained in a large percentage of cases, but there is no known method which assures permanent results. To make sure that the correction will be lasting, we have been compelled to prolong the treatment over a period of from five to ten years. If a patient, after having undergone corrective treatment for several years, has retained the improvement and has shown no signs of relapse during an additional period of two or three years, we feel warranted in believing that the deformity will not increase. We can, however, at no time feel positive about this, for we all see cases become worse