Genetic and Rare Diseases Information Center (GARD)


Other names people use for this condition
  • OI
  • Brittle bone disease

Osteogenesis imperfecta
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Osteogenesis imperfecta (OI) is a group of genetic disorders that mainly affect the bones. People with this condition have bones that break easily, often from mild trauma or with no apparent cause. Multiple fractures are common, and in severe cases, can occur even before birth. Milder cases may involve only a few fractures over a person's lifetime. There are at least eight recognized forms of osteogenesis imperfecta, designated type I through type VIII. The types can be distinguished by their signs and symptoms, as well as by genetic factors.[1]

References
  1. Osteogenesis imperfecta. Genetics Home Reference (GHR). 2007 Available at: http://ghr.nlm.nih.gov/condition=osteogenesisimperfecta. Accessed April 29, 2009.

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