The 'black hole' sign: a visual ultrasonographic sign of hip dislocation.
Visual analysis of dynamic ultrasonography was employed in the assessment of hip stability in the neonate/infant. The 'black hole' sign visually describes the clearly recognizable ultrasonographic image of hip dislocation/dislocatability. This sign adds objectivity to the technique of visual analysis and is to be recommended.
Warner
J G
JG
Department of Orthopaedic Surgery, Blackburn Royal Infirmary, UK.
Paton
R W
RW
D006618:Hip Dislocation, Congenital / Q000000981:diagnostic imaging*; D006621:Hip Joint / Q000000981:diagnostic imaging*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D014463:Ultrasonography