Scoliosis classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Humayun Israr ,Mbbs

Classification

Scoliosis can be classified into congenital scoliosis (due to failure of vertebral formation or segmentation of affected vertebrae), idiopathic scoliosis(when the cause is not known) or neuromuscular scoliosis (due to loss of muscle strength or voluntary muscle control).

Congenital scoliosis is subdivided based on radiological finding, structural component involved and 3-D CT.

Based on radiological finding

Complete failure - hemivertebra, butterfly vertebra
Failure of formation	Partial failure - wedged vertebra
	Unilateral failure - longitudinal failure
Failure of segmentation	Bilateral failure - block vertebra
Miscellaneous	Formation and segmentation mixed failure

• Idiopathic scoliosis may be further classified into three types based on age of onset.
  • infantile idipathic scoliosis (birth to 3 years)
  • juvenile idiopathic scoliosis (4 to 9 years)
  • adolescent idiopathic scoliosis (10 to 20 years)

References

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