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Diseases

Genetic and Rare Diseases Information Center (GARD)

Blount disease


Other Names for this Disease
  • Tibia vara
  • Osteochondrosis deformans tibiae
  • Blount's disease
  • Blount-Barber syndrome
  • Erlacher-Blount syndrome
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Your Question

My 18-month-old grandson is suspected of having Blount disease. How common is it for only one leg to have bowing?

Our Answer

We have identified the following information that we hope you find helpful. If you still have questions, please contact us.

How often does Blount disease only affect one leg?

Early-onset, or infantile Blount disease (occurring before 4 years of age) usually involves both legs. It is estimated that about 50-60% of individuals with early-onset blount disease have symptoms in both legs.[1][2] Individuals with late-onset Blount disease are more likely to have only one affected leg.[3]
Last updated: 7/27/2016

References
Other Names for this Disease
  • Tibia vara
  • Osteochondrosis deformans tibiae
  • Blount's disease
  • Blount-Barber syndrome
  • Erlacher-Blount syndrome
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.