Friday, April 2, 2010

Scoliosis

Scoliosis is a medical condition in which a person's spine is curved from side to side, and may also be rotated. It is an abnormal lateral curvature of the spine. On an x-ray, the spine of an individual with a typical scoliosis may look more like an "S" or a "C" than a straight line. It is typically classified as congenital (caused by vertebral anomalies present at birth), idiopathic (sub-classified as infantile, juvenile, adolescent, or adult according to when onset occurred) or as having developed as a secondary symptom of another condition, such as cerebral palsy or spinal muscular atrophy.

In the case of the most common form of scoliosis, adolescent idiopathic scoliosis, there is a clear Mendelian inheritance but with incomplete penetrance. Various causes have been implicated, but none has consensus among scientists as the cause of scoliosis. Scoliosis is more often diagnosed in females and is often seen in patients with cerebral palsy or spina bifida,[citation needed] although this form of scoliosis is different from that seen in children without these conditions. In some cases, scoliosis exists at birth due to a congenital vertebral anomaly. Occasionally, development of scoliosis during adolescence is due to an underlying anomaly such as a tethered spinal cord, but most often the cause is unknown or idiopathic.[citation needed] Some therapists like the referenced Hanna Somatic therapist believe that trauma to an adult can cause, not just asymmetry but an actual curve to the spine visible on x-ray, although no documentation is offered in her article. [5] Scoliosis often presents itself, or worsens, during the adolescence growth spurt.[6]

In April 2007, researchers at Texas Scottish Rite Hospital for Children identified the first gene associated with idiopathic scoliosis, CHD7. The medical breakthrough was the result of a 10-year study and is outlined in the May 2007 issue of the American Journal of Human Genetics.[7]


Surgery is usually indicated for curves that have a high likelihood of progression, curves that cause a significant amount of pain with some regularity, curves that would be cosmetically unacceptable as an adult, curves in patients with spina bifida and cerebral palsy that interfere with sitting and care, and curves that affect physiological functions such as breathing.

Surgery for scoliosis is usually done by an orthopaedic surgeon who specializes in spine surgery. For various reasons it is usually impossible to completely straighten a scoliotic spine, but in most cases very good corrections are achieved.

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