title: Orientation of the sigmoid notch of the distal radius: determination of different types of the distal radioulnar joint.
abstract: The orientation of the sigmoid notch of the distal radius is related to the ulnar length. In the ulna plus there is a spherical notch, in the ulna minus it is conical and in neutral it is usually cylindrical, sometimes conical.
authors.affiliation: University Hospital, Department of Orthopedics, Katholieke Universiteit Leuven, Pellenberg, Belgium.
authors.forename: L
authors.initials: L
authors.lastname: De Smet
authors.forename: G
authors.initials: G
authors.lastname: Fabry
mesh_terms: D000328:Adult; D006801:Humans; D011859:Radiography; D011884:Radius / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D014457:Ulna / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D014955:Wrist Joint / Q000033:anatomy & histology / Q000000981:diagnostic imaging