Adolescent Idiopathic Scoliosis NASS (Visit this link)
There are many causes of scoliosis, but AIS is the most common. It is a diagnosis of exclusion, meaning other diseases or causes have to be ruled out first. AIS is defined as a persistent lateral curvature of the spine of more than 10 degrees in the upright or standing position. Although the lateral curvature is the main component it can also be associated with rotation of the spine, and different plane curvatures. These additional curvatures and rotation make AIS a complex three-dimensional deformity.
Updated: 03-Mar-2005
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Added: Sat Aug 04 2007

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