Classification
Type 1
- Main thoracic: Main thoracic curve is the major curve; proximal thoracic and thoracolumbar/lumbar curves are minor nonstructural curves
Type 2
- Double thoracic: Main thoracic curve is the major curve; proximal thoracic curve is minor and structural; thoracolumbar/lumbar curve is minor and nonstructural
Type 3
- Double major: Main thoracic and thoracolumbar/lumbar curves are structural; proximal thoracic curve is nonstructural
- Main thoracic curve is the major curve and is greater than, equal to, or no more than 5 degrees less than the Cobb measurement of the thoracolumbar/lumbar curve
Type 4
- Triple major: Proximal thoracic, main thoracic, and thoracolumbar/lumbar curves are structural; either of the two latter curves may be the major curve
Type 5
- Thoracolumbar/lumbar: Thoracolumbar/lumbar curve is the major curve and is structural; proximal thoracic and main thoracic curves are nonstructural
Type 6
- Thoracolumbar/lumbar-main thoracic: Thoracolumbar/lumbar curve is the major curve and measures at least 5 degrees more than the main thoracic curve, which is structural; proximal thoracic curve is nonstructural
Explanation
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Figures
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Reference(s)
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