Idiopathic scoliosis describes scoliosis that has no clinically or radiologically identifiable underlying cause. It is the dominant type of scoliosis with ~80% of all scolioses being idiopathic.
Pathology
Idiopathic scoliosis can be classified by age into:
- adolescent idiopathic scoliosis (>11 years)
- juvenile idiopathic scoliosis (4-11 years)
- infantile idiopathic scoliosis (<4 years)
Adolescent and juvenile idiopathic scoliosis is more common in girls and tends to have a right thoracic curve (dextroscoliosis). There may be an additional thoracolumbar curve and sometimes a cervicothoracic curve. Infantile idiopathic scoliosis is more common in boys and they tend to have a left thoracic scoliosis (levoscoliosis).
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