The authors report on the results of a preliminary study on the treatment of progressive idiopathic scoliosis by electrical surface stimulation. The study, involving 30 spinal curvatures, showed stabilization of the median primary curvature (30 degrees) in the course of treatment, the median duration of which was 12 months. Overall, 73.2% of the curvatures treated, responded favorably (stabilization or regression of the curve); however, 26.8% of the curvatures progressed in spite of the transcutaneous electrical stimulation treatment. The only complication noted was contact eczema in 20% of the cases. The authors feel that surface electrical stimulation treatment can be regarded as an acceptable alternative to a brace in the treatment of idiopathic scoliosis, and at this stage it deserves a place in the conservative therapeutic approach to idiopathic scoliosis.