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Viral antibody titers to rubella in coxa plana or Perthes' disease. Perthes diseases: is it the late osseous redidua of a minor prenatal rubella?

The present study seriously raises the question as to whether coxa plana is etiologically connected to the rubella virus. Some findings suggest a probable causal correlation between prenatal rubella and coxa plana. A regional vasculitis in association with biologically inferior bone probably constitutes the fundamental pathogenetic mechanism of this condition. However, this matter is still awaiting elucidation.