Alternate Names : Developmental dislocation of the hip joint, Developmental hip dysplasia, DDH, Congenital dysplasia of the hip, Congenital dislocation of the hip, CDH
Developmental dysplasia of the hip (DDH) is a dislocation of the hip joint that is present at birth. The condition is found in babies or young children.
Overview, Causes, & Risk Factors
The hip is a ball and socket joint. The ball, called the femoral head, forms the top part of the thigh bone (femur) and the socket (acetabulum) forms in the pelvis.
The hip may be all the way out of the joint or the socket may be a little shallow. One or both hips may be involved.
The cause is unknown, but genetic factors may play a role. Low levels of amniotic fluid in the womb during pregnancy can increase a baby’s risk of DDH. Other risk factors include:
- Being the first child
- Being female
- Breech delivery
- Family history of the disorder
DDH occurs in about 1 out of 1,000 births.
Pictures & Images
Congenital hip dislocation
Although most dislocations are caused by a blow, fall, or other trauma, a dislocation can also occur from birth. The cause is unknown but genetic factors may play a role. Problems resulting from very mild developmental dysplasia of the hip may not become apparent until the person is in his 30s or 40s.
Developmental dysplasia of the hip : Overview, Causes, & Risk Factors
Developmental dysplasia of the hip : Symptoms & Signs, Diagnosis & Tests
Developmental dysplasia of the hip : Treatment
Review Date : 3/24/2009
Reviewed By : Jennifer K. Mannheim, CPNP, private practice, Seattle, WA; Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only — they do not constitute endorsements of those other sites. © 1997- 2010 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.