Developmental Dysplasia of the Hip 1, also known as acetabular dysplasia, is related to diaphragmatic hernia, congenital and congenital knee dislocation. An important gene associated with Developmental Dysplasia of the Hip 1 is COL2A1 (Collagen Type II Alpha 1 Chain). The drugs Clonidine and Racepinephrine have been mentioned in the context of this disorder. Affiliated tissues include skin and bone, and related phenotypes are congenital hip dislocation and acetabular dysplasia