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Developmental dislocation of the hip joint; Developmental hip dysplasia; DDH; Congenital dysplasia of the hip; Congenital dislocation of the hip; CDH; Pavlik harness
There may be no symptoms. Symptoms that may occur can include:
After 3 months of age, the affected leg may turn outward or be shorter than the other leg.
Pediatric health care providers routinely screen all newborns and infants for hip dysplasia. There are several methods to detect a dislocated hip or a hip that is able to be dislocated.
The most common method of identifying the condition is a physical exam of the hips, which involves applying pressure while moving the hips. The health care provider listens for any clicks, clunks, or pops.
Ultrasound of the hip is used in younger infants to confirm the problem. An x-ray of the hip joint may help diagnose the condition in older infants and children.
A hip that is truly dislocated in an infant should be detected at birth, but some cases are mild and symptoms may not develop until after birth, which is why multiple exams are recommended. Some mild cases are silent and cannot be found during a physical exam.
Hosalkar HS, Horn D, Friedman JE, Dormans JP. The hip. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier;2007:chap 677.
Cooperman DR, Thompson GH. Neonatal orthopedics. In: Martin RJ, Fanaroff AA, Walsh MC, eds. Fanaroff and Martin's Neonatal-Perinatal Medicine. 9th ed. St. Louis, MO: Mosby Elsevier;2010:chap 54.
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