DDH Investigation — RACP Paediatrics MCQ

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EasyRheumatologyDDH InvestigationRACP Paediatrics

A newborn is found to have asymmetric skin folds on the thighs, limited abduction of the left hip, and a positive Barlow and Ortolani test on the left. What is the first-line investigation?

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Correct answer: B — Hip ultrasound

DDH screening: clinical examination at birth and 6-8 weeks, followed by hip USS for clinically suspicious hips or risk factors (breech, family history, oligohydramnios). USS is the investigation of choice in infants <4-6 months. X-ray is useful after 4-6 months when the femoral head ossifies. Pavlik harness is the first-line treatment for infants <6 months.

Reference: RCH Melbourne – 2024 – Clinical Practice Guidelines: Developmental Dysplasia of the Hip