1) The Responses of thoraco-lumbar and lumbar curve of 31 cases with idiopathic scoliosis were analysed by roentgenographic which were taken by several correction methods such as supine position, supine side bending, modified “Baranscoire” traction and just after correction operation.
2) The patients with single major curves, whose lumbar curves were considered to to be compensatory curves, had the best response to the supine side bending. The patients with other scoliotic curve Patterns of thoraco-lumbar and lumbar curve obtained the best correction by the operative correction,
3) The V. D. S. Method, the Harrington instrumentation, the D. T. T. methods and other methods were discussed for it's effectiveness of the correction of the lumbar curve.
