Determining the incidence can be difficult. In addition there is a wide margin in diagnostic results. A German study comparing two methods resulted in twice the usual rate for one method. The condition is eight times more frequent in females than in males. Native Americans are more likely to have congenital<unk>  dislocation than any of the other races. The risk for Native Americans is about 25-50 in 1000. The overall frequency of developmental dysplasia of the<unk>  is approximately 1 case per 1000 individuals; however, Barlow believed that the incidence of<unk>  instability in newborns can be as high as 1 case for every 60 newborns, with the rate dropping to 1:240 at one week.
Hip dysplasia
Hip dislocation
Radial dysplasia
Cemento-osseous dysplasia
Achondroplasia
Multiple epiphyseal dysplasia
Metaphyseal dysplasia
Dysostosis