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Review Question - QID 218612

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QID 218612 (Type "218612" in App Search)
A 3-week-old male infant presents to your clinic with his foster parents who note that they hear a click in his left hip when getting him dressed. On examination, his Ortolani sign is positive and his left leg is slightly shorter with the hip flexed at 90°. Based on his initial ultrasound, you classify his hip as Graf IV. Which of the following patient factors places this infant most at risk for failing initial treatment with a Pavlik harness?