Kyphosis (plural: kyphoses), much less commonly kyphus, is a term used to describe the sagittal curvature of the thoracic spine.

An increased kyphotic angle is seen in the following conditions:

A decreased kyphotic angle is seen in the following condition:

  • traditionally measured using the Cobb angle
    • may over-estimate kyphosis if there are concomitant vertebral end-plate irregularities 1
    • the alternative Cobb 1 or vertebral centroid angles 3 have been proposed to negate the aforementioned over-estimation

Derived from the Greek word kyphōsis, from kyphos meaning humpbacked 4.

Article information

rID: 44126
Synonyms or Alternate Spellings:
  • Kyphoses
  • Thoracic kyphosis
  • Kyphotic deformity
  • Kyphus
  • Thoracic kyphus

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Cases and figures

  • Mucopolysaccharid...
    Case 1: mucopolysaccharidosis
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  • Case 2: dowager's hump
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  • Case 3: Scheuermann disease
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  • Case 4: Scheuermann disease
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  • Case 5: Scheuermann disease
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  • Case 6: acromegaly
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