How common is structural scoliosis?

3-4 percent of children between the ages of 10 and 16 develop the most common type of scoliosis, that which has no determinable cause. This type of scoliosis is also call idiopathic structural scoliosis. Scoliosis that is caused by birth defects or other muscular or skeletal conditions is far less common. Girls are more likely to have their spinal curve worsen, requiring surgery or other treatment.