A total of 69 patients with idiopathic SCOl∼OS∼S who were treated only by side shift exercise after their skeletal maturity were reviewed. The average age at the beginning of the side shift was 16.3 years and the average follow-up period was 4.2 years. Size ofthe curve was 31.5°+11.2 at the beginning ofthe side shift and 3O.3∼il2.3 at the final follow-up. The side shift exercise can be a useful treatment option for the management of idiopathic scoliosis after skeletal maturity.