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Developmental dysplasia of the hip — USMLE Step 3 MCQ

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ModeratePediatrics (well-child, chronic management)Developmental dysplasia of the hipUSMLE Step 3

A 6-week-old girl is brought for a well-child visit. She was born breech at term. Physical examination shows asymmetric thigh folds but no clear Ortolani or Barlow clunk. Parents ask whether imaging is needed. Which of the following is the most appropriate next step in management?

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Correct answer: C — Order hip ultrasonography at the appropriate age window

Breech presentation is a risk factor for developmental dysplasia of the hip; ultrasound is used in early infancy when indicated.

Reference: AAP developmental dysplasia of the hip guidance