Developmental dysplasia of the hip (DDH) is a condition of the hip joint that is present at birth (a congenital condition) and occurs about once in every 1,000 births. With DDH, the “ball” of the hipbone moves partially or completely out of the hip socket.
Factors causing hip dysplasia are usually both genetic and environmental. Hip dysplasia is more common in females than males. The left hip is involved more frequently than the right due to intrauterine positioning. First-born babies are at higher risk since the uterus is smaller in a first pregnancy. Other risk factors may include a family history of developmental dysplasia of the hip or very flexible ligaments; position of the baby in the uterus, especially in breech presentations; and associations with other orthopedic problems.
Every baby may experience symptoms differently, but common symptoms include the leg appearing shorter on the side of the dislocated hip; the leg on the side of the dislocated hip may turn outward; the folds in the skin of the thigh or buttocks may appear uneven; and the space between the legs may look wider than normal.
Specific treatment varies by patient and may include non-surgical devices that help the hips and legs grow a certain way, casting and surgery.Previous Page Last Review Date: January 5, 2018