title: Coronal fractures of the proximal scaphoid: the proximal ring sign.
abstract: We present two coronal fractures of the proximal scaphoid which were both missed in the acute stage as interpretation of initial radiographs was difficult. In both cases, recognition of the so-called "Proximal Ring Sign" on the PA ulnar deviation radiographs may have helped diagnosis. CT scans were necessary to fully demonstrate the fractures. Open reduction and internal fixation, performed 2 and 4 months after the injury, resulted in union in both cases.
authors.affiliation: Edouard Herriot Hospital, Upper Extremity Orthopaedic Service, Pavillon M, 5 Place d'Arsonsal, Lyon Cedex, France. guillaume.herzberg@chu-lyon.fr
authors.forename: G
authors.initials: G
authors.lastname: Herzberg
authors.forename: D
authors.initials: D
authors.lastname: Forissier
authors.forename: C
authors.initials: C
authors.lastname: Falaise
mesh_terms: D000328:Adult; D017760:Bone Malalignment / Q000000981:diagnostic imaging*; D005593:Fracture Fixation, Internal; D050723:Fractures, Bone / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008297:Male; D021361:Scaphoid Bone / Q000000981:diagnostic imaging* / Q000293:injuries* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014457:Ulna / Q000000981:diagnostic imaging*