title: Kallen projection reveals metacarpal head fractures.
abstract: Routine radiographic views may not be able to provide a complete diagnosis of metacarpal head fractures because the metacarpal heads are superimposed in the lateral position. This article describes a new radiographic position developed by the author that projects the metacarpal heads free of surrounding anatomy. The Kallen tangential oblique projection can demonstrate fractures that may not be visualized clearly on routine radiographic views.
authors.affiliation: Central Indiana Orthopedics, P.C., in Muncie.
authors.forename: M J
authors.initials: MJ
authors.lastname: Kallen
mesh_terms: D000328:Adult; D050723:Fractures, Bone / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008663:Metacarpus / Q000293:injuries*; D011859:Radiography; D013679:Technology, Radiologic / Q000379:methods*