What is developmental dysplasia of the hip (DDH)?

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An overview of the signs, symptoms, causes and treatment of developmental dysplasia of the hip (DDH).

Key points

  • Developmental dysplasia of the hip (DDH) means that the hip joint (ball and socket) has not formed properly, so that the ball (top of the femur / thigh bone) is not properly inside the socket (the acetabulum).
  • Girls and first-born infants are at a higher risk of having DDH. Breech position and family history of the condition are also risk factors for DDH.
  • A primary care provider completes the initial exam of the infant and may refer the infant to a specialist clinic if they are concerned about the hips.
  • 1 in 100 infants require treatment to correct DDH.
Last updated: October 17th 2022