Bone Imaging
Bone Imaging
Bone Imaging
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Developmental dysplasia of the hip US<br />
Ultrasound<br />
alpha angle<br />
• the slope of the superior<br />
aspect of the bony acetabulum<br />
(normal greater than 60º)<br />
beta angle<br />
• depicts the cartilaginous<br />
component of the acetabulum<br />
(normal if less than 55º)<br />
evidence is insufficient to recommend routine screening for dev.<br />
dyspl. of the hip in infants as a means to prevent adverse outcome<br />
(U.S. Preventive Services Task Force, 2006)
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