title: Ultrasound assessment of the acetabulum in the infant hip.
abstract: One hundred and fifty infant hips were studied using simultaneous ultrasonography and radiography. The reliability of measurement was found to be similar for alpha angle and d/D ratio. However, the acetabular index correlated much better with the d/D ratio than with the alpha angle. In fact, in hips where the d/D ratio exceeded 56%, radiographs could be dispensed with. Besides, the use of a sector scanner or a linear-array tranducer was found to make no significant difference to the correlation between the acetabular index and the d/D ratio. Sonographic assessment of acetabular development in the infant should permit a reduction in the number of radiographs required during screening and follow-up.
authors.affiliation: Service d'orthopédie et de chirurgie réparatrice de l'enfant, Institut Calot, Berck-Plage, France.
authors.forename: C
authors.initials: C
authors.lastname: Morin
authors.forename: S
authors.initials: S
authors.lastname: Zouaoui
authors.forename: A
authors.initials: A
authors.lastname: Delvalle-Fayada
authors.forename: P M
authors.initials: PM
authors.lastname: Delforge
authors.forename: H
authors.initials: H
authors.lastname: Leclet
mesh_terms: D000077:Acetabulum / Q000002:abnormalities / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006615:Hip / Q000002:abnormalities / Q000000981:diagnostic imaging*; D006618:Hip Dislocation, Congenital / Q000000981:diagnostic imaging; D006801:Humans; D007223:Infant; D008297:Male; D011859:Radiography; D012016:Reference Values; D014463:Ultrasonography