This page has moved. Click here to view.
Dislocations tend to occur after delivery.
The cause of DDH is multifactorial, having both physiologic and mechanical factors. The majority of children with DDH have generalized ligamentous laxity, and this can predispose to hip instability. Maternal estrogens and other hormones associated with pelvic relaxation result in further, although temporary, relaxation of the newborn hip joint. The presence of either condition requires a careful examination of Postnatal factors are also important determinants. Maintaining the hips in the position of adduction and extension may lead to dislocation.