Neonatal Hip Ultrasound
Developmental Dysplasia of the Hip is a congenital disorder in which the acetabulum is underdeveloped or there is dislocation of the hip. Incidence of DDH is 1.5 in 1,000 it is more seen in females with a ratio of about 4:1.
Indications
Abnormal Physical
Hip Click
Breech Presentation
Oligohydramnios
Family history or follow up for known Dysplasia
Scanning
With the patient in lateral decubitus, dynamic imaging is obtained by performing Barlow (adduction or flexion) and Ortolani (abduction) maneuvers. Via the acetabulum you measure the Alpha and Beta angles.
Normal measurements are Alpha >60 degrees and Beta <55 degrees.
Images in neutral, adduction (flexion) and abduction (extension)
Measure the beta and alpha angles, asses acetabular morphology and for subluxation.
Transverse
Images in neutral, adduction (flexion) and abduction (extension)
Graf Classification
Sources:
http://pediatrics.aappublications.org/content/125/1/e9
Small Part and Hip Ultrasound
Sonographic Tendencies 
Hi thank you for your nice presentation , but one question about the bone ilium showed be straight ? if hump shown i shouldn’t measure the angle. .
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You should try to get it as straight as possible to get the proper angle. It is very easy to be too oblique and foreshorten the acetabulum and ilium.
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