Scoliosis

Scoliosis affects 5 to 7 million people in the United States. More than a half million visits are made to doctors’ offices each year for evaluation and treatment of scoliosis. Although scoliosis can begin at any age, it most often develops in adolescents between the ages of 10 and 15. Girls are more commonly affected than boys. Because scoliosis can be inherited, children whose parents or siblings are affected by it should definitely be evaluated by a trained professional.

What is scoliosis?

Because we walk on 2 feet, the human nervous system constantly works through reflexes and postural control to keep our spine in a straight line from side to side. Occasionally, a lateral (sideways) curvature develops. If the curvature is larger than 10 degrees, it is called scoliosis. Curves less than 10 degrees are often just postural changes. Scoliosis can also be accompanied by lordosis (abnormal curvature toward the front) or kyphosis (abnormal curvature toward the back). In most cases, the vertebrae are also rotated.

In more than 80% of cases, the cause of scoliotic curvatures is unknown; we call this condition idiopathic scoliosis. In other cases, trauma, neurological disease, tumors, and the like are responsible. Functional scoliosis is often caused by some postural problem, muscle spasm, or leg-length inequality, which can often be addressed. Structural scoliosis does not reduce with postural maneuvers. Either type can be idiopathic or have an underlying cause.

What are the symptoms of scoliosis?

Scoliosis can significantly affect the quality of life by limiting activity, causing pain, reducing lung function, or affecting heart function. Diminished self-esteem and other psychological problems are also seen. Because scoliosis occurs most commonly during adolescence, teens with extreme spinal deviations from the norm are often teased by their peers.

Fortunately, 4 out of 5 people with scoliosis have curves of less than 20 degrees, which are usually not detectable to the untrained eye. These small curves are typically no cause for great concern, provided there are no signs of further progression. In growing children and adolescents, however, mild curvatures can worsen quite rapidly-by 10 degrees or more-in a few months. Therefore, frequent checkups are often necessary for this age group.

Is scoliosis always progressive?

Generally, it is not. In fact, the vast majority of scolioses remains mild, is not progressive, and requires little treatment, if any.

In one group of patients, however, scoliosis is often more progressive. This group is made up of young girls who have scolioses of 25 degrees or larger, but who have not yet had their first menstrual period. Girls generally grow quite quickly during the 12 months before their first period and if they have scolioses, the curvatures tend to progress rapidly. In girls who have already had their first periods, the rate of growth is slower, so their curves tend to progress more slowly.