Everyone's spine has curves. These curves produce the normal rounding of the shoulder and the sway of the lower back.

A spine with scoliosis has abnormal curves with a rotational deformity. This means that the spine turns on its axis like a corkscrew. Compare the more subtle curve of the normal spine to the severe curvature of the scoliotic spine.

Scoliosis is a curvature of the spine which may have its onset in infancy but is most frequently seen in adolescence. It is more common in females by a 2:1 ratio. However, when curves in excess of 30 degrees are evaluated, females are more frequently affected by a ration of approximately 8-10:1.

The cause of the most common form of scoliosis -- idiopathic scoliosis -- is unknown, but there are certainly hereditary factors that are present.

Scoliosis causes shoulder, trunk and waistline asymmetry. In mild forms, the condition may be barely noticed; whereas in severe forms there is significant disfigurement, back pain and postural fatigue, and it may be associated with heart failure. Fortunately the majority of scoliosis cases need only close follow-up to watch for worsening of the curve. Some cases require more aggressive treatment which could include surgery (see below).

Orthopedic surgeons are best qualified to evaluate and treat deforming spinal conditions like scoliosis. However, a good resource for further information is:

1. To prevent further progression of the curve.
2. To control the curve when brace treatment has failed.
3. To improve an undesired cosmetic appearance.
4. For reasons of discomfort or postural fatigue.

The most common surgical treatment for scoliosis is a spine fusion using special stainless steel rods, hooks, and a bone graft. The rods are attached to the spine with hooks and the curved portion of the spine is carefully straightened. Then, small strips of bone graft are placed over the spine to fuse it in a straight position. As the bone graft heals over the next several months, the spine becomes solid and will not curve again. But the part of the spine that has not been fused will still be flexible, and allow nearly normal overall movement.

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