Adolescent idiopathic scoliosis (AIS) is an exclusion diagnosis determined only after other known causes of scoliosis have been ruled out. It is defined as a lateral spinal curvature of greater than 10 degrees as measured by the Cobb method. Other characteristics are vertebral body rotation and onset after the age of 10.
The prevalence of AIS has been estimated at 2% (1). The prevalence of AIS requiring treatment is 2 to 3 in 1000 (2).
A total of 148 references were used in preparation of the prevention, diagnosis and treatment sections of the adolescent idiopathic scoliosis monographs.
(1) Greiner KA. Adolescent idiopathic scoliosis: radiologic decision-making. Am Fam Physician 2002; 65(9):1817-1822; (2) Bunnell WP. Selective screening for scoliosis. Clin Orthop Relat Res 2005;(434):40-45.