Developmental Dysplasia of the Hips, or DDH, is a condition that affects the head of the femur (thigh bone) as it develops in the hip joint (acetabulum). DDH affects ~1 in 1000 babies, is more common in girls, babies who are breech, and those with a family history of DDH.

Symptoms of DDH can vary, with some young babies showing no symptoms all. An ultrasound of the hip joint is often used to diagnose DDH.

Symptoms may include:

Hearing or feeling a "clunk" when moving the hips, during a diaper change for example
Difficulty moving the thigh outward at the hip (hip abduction)
Leg length discrepancy; the affected leg may appear shorter than the other
Asymmetrical (uneven) fat fold (rolls) around the groin or buttocks
Limping or changes in gait in older children
A curve in the spine in older children

When detected early, DDH can be effectively treated with the Pavlik Harness, and less than 1% of children affected may require surgery.

If your child has any of the above risk factors for DDH, or you have concerns with how your child’s hips move or feel, speak with your doctor.

For more information on DDH, visit:

https://www.aboutkidshealth.ca/Article?contentid=944&language=English