Scoliosis - Prognosis

Highlights	Symptoms	Surgery
Introduction	Diagnosis	Treatment for Adult Scoliosis
Causes	Treatment	Resources
Risk Factors	Managing Scoliosis	References
Prognosis	Braces

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Prognosis

In general, the severity of the scoliosis depends on the degree of the curvature and whether it threatens vital organs, specifically the lungs and heart. (However, in general, the mortality rate for patients who had adolescent idiopathic scoliosis is normal.)

Effect of Mild Scoliosis (less than 20 degrees). Mild scoliosis is not serious and requires no treatment other than monitoring.
Effect of Moderate Scoliosis (between 25 and 70 degrees). It is still not clear whether untreated moderate scoliosis causes significant health problems later on. Some studies have found no difference in either back pain or survival rates in adult untreated patients versus the general population. In one study, adults with moderate scoliosis had normal lung function, although they had difficulty exercising. (The researchers believed that this low exercise tolerance might have been because many patients with scoliosis do not engage in regular physical activity.)
Effect of Severe Scoliosis (over 70 degrees). If the curvature exceeds 70 degrees, the severe twisting of the spine that occurs in structural scoliosis can cause the ribs to press against the lungs, restrict breathing, and reduce oxygen levels. The distortions may also affect the heart and possibly cause dangerous changes.
Effect of Very Severe Scoliosis (Over 100 degrees). Eventually, if the curve reaches over 100 degrees, both the lungs and heart can be injured. Patients with this degree of severity are susceptible to lung infections and pneumonia. Curves greater than 100 degrees increase mortality rates, but this problem is very uncommon in America.

Some experts argue that simply measuring the degree of the curve may not identify patients in the moderate and severe groups who are at greatest risk for lung problems. Other factors (e.g., spinal flexibility, the extent of asymmetry between the ribs and the vertebrae) may be more important in predicting severity in this group.

Effects on Bones

A number of factors associated with scoliosis increase the risk for bone loss, which is referred to as osteopenia. People with osteopenia are at greatly increased risk of osteoporosis, a common problem in older women that can cause broken bones and is particularly dangerous for women with a history of scoliosis. Experts recommend that children with scoliosis be screened for osteopenia so that measures can be taken to help prevent osteoporosis later on.

The external structures of the heart include the ventricles, atria, arteries and veins. Arteries carry blood away from the heart while veins carry blood into the heart. The vessels colored blue indicate the transport of blood with relatively low content of oxygen and high content of carbon dioxide. The vessels colored red indicate the transport of blood with relatively high content of oxygen and low content of carbon dioxide.