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Scoliosis (AIS) is a lateral (side) curvature of the spine that can occur in children and in adults. The spine may curve to the left or right. Sometimes Adolescent Idiopathic Scoliosis may start at puberty or during an adolescent growth spurt.

Idiopathic means the abnormal curve develops for unknown reasons. There is undoubtedly a genetic pre-disposition for some adolescents to develop AIS. Three to five percent of adolescents will be found to have some form of scoliosis. Most of these children will be girls, in which curves may be more progressive.

Symptoms of scoliosis include back pain, leg length discrepancy, an abnormal gait, and uneven hips. Patients with AIS may have one shoulder higher than the other, a "prominent" shoulder blade and rib cage when bending forward, and visible curving of the spine to one side. Often the first indication of AIS is when an adolescent or parent notices that clothes no longer fit correctly (for example, the legs of pants may seem uneven).

It is important to seek treatment for AIS because progressive scoliosis, left untreated, can result in significant deformity. The deformity can cause marked psychological distress and physical disability, especially among adolescent patients. Additionally, the deformity can have serious physical consequences.

As the vertebrae (spinal bones) rotate, the rib cage is affected, which in turn can cause heart and lung compromise (i.e. shortness of breath). When progressive scoliosis affects the lumbar spine the pain can be debilitating.

A spine specialist's assessment of the child's condition will include medical history, physical and neurological exam, and diagnostic tests.

Medical history may include questions about the parent's genealogy. Are there other family members with scoliosis? If so, how did the scoliosis progress and what treatment was provided? The physician will check for any underlying medical condition that might otherwise be causing the scoliosis. In addition, the patient's age, onset of puberty, and age at which a young woman has her first period, will help the physician determine the number of years that remain before the child reaches skeletal maturity. At skeletal maturity curve progression may stop as long as the curve is less than 40-45 degrees. The curve may continue to progress throughout adulthood, if the curve exceeds 40-45 degrees.

During the physical and neurological examinations the physician will learn about the patient's health and general fitness. These exams provide the physician with a "baseline" from which future curve progression can be measured. A typical examination may include the following:

Non-Surgical Treatment
Some cases of scoliosis can be treated non-surgically and others require surgical intervention.

Small curves (those less than 15-20 degrees) are observed for possible progression over a period of time. At this stage, no specific treatment is needed. Larger curves (those between 20-40 degrees) will require bracing to prevent further progression of the curve.

Some adolescents find wearing the brace 16 to 23 hours every day difficult. Braces can be uncomfortable, unattractive, hot, and can make a child self-conscious even though well disguised under clothing. However, when bracing works and surgery is avoided, the commitment required is worthwhile. At this point a carefully designed exercise program may also be recommended.

Unfortunately, some curves do not respond to bracing. Cervicothoracic curves (from the middle of the back up into the neck) and curves greater than 40 degrees tend not to respond well to bracing. Also, older patients who are closer to skeletal maturity may not respond to bracing.

Surgical Treatment
Surgery may be recommended for curves in excess of 40 degrees. Surgery for scoliosis involves special surgical implants such as rods, hooks, screws, and wires. The goal is to straighten and balance the spine and secure it in place (fusion) so curve progression stops while skeletal maturity is reached. Surgery does not cure scoliosis; it is simply a way to correct the curve and manage the progression of the disease to avoid greater deformity.