Hip Dysplasia (DDH)
Developmental dysplasia of the hip (DDH) describes a spectrum of abnormalities where the hip joint does not develop normally. With early diagnosis and the right treatment, most children achieve excellent long-term outcomes.
Urgent referral if under 6 months
What is DDH?
DDH describes a spectrum of abnormalities where the femoral head (ball) may be loose in the socket, partially dislocated, or fully dislocated. It occurs in approximately 1–3 per 1000 live births.
Signs and Screening
- Newborn: hip instability on Barlow/Ortolani testing
- Infants: asymmetric skin folds, limited hip abduction, leg length difference
- Walking children: abnormal gait, Trendelenburg sign, waddling
- Hip ultrasound is the standard diagnostic tool under 6 months; X-ray after 6 months
Treatment Approach
Treatment depends on age at diagnosis and severity. Newborns and infants are typically treated with a Pavlik harness. Older infants may require closed or open reduction and casting. Dr Cundy holds an Advanced Graf Ultrasound qualification for DDH diagnosis in infants.
When to Refer
Refer urgently (within days) for any newborn with suspected hip instability or confirmed DDH on ultrasound. Early treatment with a DB splint or Pavlik harness (usually commenced before 6 weeks). Later presentations can still achieve excellent results with appropriate management. Infants under 6 months — please call the rooms directly on (08) 8267 8200. Include hip ultrasound report with your referral.
Referring a Patient
Dr Cundy welcomes referrals from GPs, paediatricians, and emergency physicians across South Australia.
Contact Dr Will Cundy
Consulting rooms at Memorial Medical Centre, North Adelaide and Women’s and Children’s Hospital.
Phone: (08) 8267 8200
Email: contact@drcundy.com.au
Fax: (08) 8267 8201