A 3-year-old demonstrates lateral bowing of the tibia. Which signs would indicate that the boy's condition is Blount disease rather than the more typical developmental genu varum?
a) A sharp, beaklike appearance to the medial aspect of the proximal tibia on x-ray
b) The medial surfaces of the knees are more than 2 in apart
c) The malleoli are touching
d) The condition is bilateral
Answer: A sharp, beaklike appearance to the medial aspect of the proximal tibia on x-ray
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