Who is affected by developmental dysplasia of the hip

About 1 in 100 newborns may have some form of developmental dysplasia of the hip (DDH). But a complete hip dislocation occurs in about 1 to 2 in 1,000 newborns.1

  • If only one hip is affected, it is about 3 times more likely to be the left hip.2
  • DDH occurs about 5 times more often in girls than boys.2


  1. Grottkau BE, Goldberg MJ (2005). Common neonatal orthopedic ailments section of Orthopedic conditions. In HW Taeush et al., eds., Avery's Diseases of the Newborn, 8th ed., pp. 1423–1433. Philadelphia: Elsevier Saunders.
  2. American Academy of Orthopaedic Surgeons and American Academy of Pediatrics (2005). Developmental dysplasia of the hip section of Pediatric orthopaedics. In WB Greene, ed., Essentials of Musculoskeletal Care, 3rd ed., pp. 849–852. Rosemont, IL: American Academy of Orthopaedic Surgeons.

Last Updated: May 11, 2009

Author: Debby Golonka, MPH

Medical Review: Michael J. Sexton, MD - Pediatrics & Thomas S. Renshaw, MD - Orthopedics

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