Question

In the infant with developmental dysplasia of the hip (DDH), which sign would likely be noted?

A. Limited abduction of the hip
B. Excessive hip flexibility
C. Symmetrical thigh folds
D. Even knee alignment

Answer 1

In infants with developmental dysplasia of the hip, the key sign is limited abduction of the hip; this condition is characterized by reduced ability to move the thigh away from the body's midline.

Step-by-step explanation:

In an infant with developmental dysplasia of the hip (DDH), a likely sign that would be noted is limited abduction of the hip. This condition implies that the infant cannot move the thigh away from the midline of the body as much as would normally be expected. On the other hand, excessive hip flexibility, symmetrical thigh folds, and even knee alignment are not typical signs of DDH. In cases of DDH, it is essential to diagnose and treat early to prevent long-term complications such as deformities in the appendicular skeleton and issues with phosphate homeostasis.