Public Release: 

Ultrasound can reliably diagnose hip dysplasia at age 6 months

Radiation no longer required to detect common congenital birth defect

American Academy of Orthopaedic Surgeons

SAN FRANCISCO - Developmental dislocation (dysplasia) of the hip (DDH) is a common congenital condition in which a child's upper thighbone is dislocated from the hip socket. The condition can be present at birth or develop during a child's first year of life. Plain radiography (X-rays) has long been the gold standard screening modality for this condition in 6-month-old children, despite concerns over exposing very young children to ionizing radiation.

In new research presented today at the 2012 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS), 35, 5- to 7-month-old children at high risk for DDH were screened with the standard pelvis X-ray, as well as a bilateral non-stress hip ultrasounds. Blinded orthopaedic surgeons then evaluated the X-rays and ultrasounds for standard measure of hip dysplasia. Of the 35 children involved in the study, only one was diagnosed with dysplasia, and the diagnosis was made on both the ultrasound and X-ray.

Ultrasound provided good quality images with 100 percent diagnostic correlation to the X-rays in all patients. Ultrasound is a reliable alternative imaging method to X-rays for DDH screening in 5-to-7 month old children.

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About the AAOS

With more than 37,000 members, the American Academy of Orthopaedic Surgeons, (www.aaos.org) or (www.orthoinfo.org) is the premier not-for-profit organization that provides education programs for orthopaedic surgeons and allied health professionals, champions the interests of patients and advances the highest quality of musculoskeletal health. Orthopaedic surgeons and the Academy are the authoritative sources of information for patients and the general public on musculoskeletal conditions, treatments and related issues. An advocate for improved care, the Academy is participating in the Bone and Joint Initiative (www.usbjd.org), the global initiative to raise awareness of musculoskeletal health, stimulate research and improve people's quality of life. The Academy's 2012 Annual Meeting is being held February 7 - 11, 2012 at the San Francisco Moscone Center in San Francisco (www.aaos-annualmeeting-presskit.org).

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