The hips of a newborn are examined for developmental dysplasia. Which sign indicates an incomplete development of the acetabulum?
a. Negative Ortolani's sign
b. Thigh and gluteal creases are asymmetric
c. Negative Barlow test
d. Knee heights are equal
B
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A Positive Ortolani's sign yields a "clunking" sensation and indicates a dislocated
femoral head moving into the acetabulum.
B Asymmetric thigh and gluteal creases may indicate potential dislocation of the
hip.
C During a positive Barlow test, the examiner can feel the femoral head move out
of acetabulum.
D If the hip is dislocated, the knee on the affected side will be lower.
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