Abstract
The radial head-capitellum (RHC) view was performed in 125 patients following acute elbow trauma in which an elbow fat-pad effusion was visible on the standard antero-posterior and lateral projections. Seventy-four fractures were identified of which 63 (85%) involved the radial head. In only one case (1%) did the RHC view reveal a radial head fracture not seen on the standard two views. In eight cases (11%) the RHC view did not confirm a radial head fracture seen on the standard radiographs. Magnification blurring and the vertical orientation of the radial head fractures missed on the RHC view are responsible for this confusing situation. Routine use of the RHC view even in acute elbow trauma significant enough to produce an effusion is generally unhelpful and potentially misleading.
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