title: Radiographic assessment of pediatric proximal radius fractures: interrater and intrarater reliability.
abstract: Three methods of measuring pediatric proximal radius fracture radiographs were compared using injury films of 32 patients. Angulation and displacement were independently measured by four physicians. One physician measured the films by each method a second time 2 months later. Values for interrater and intrarater reliability were determined using inter- and intra-class coefficients (ICC). Interrater reliability was poor for methods using the axis of the proximal radial fragment or the proximal radial physis as a reference (ICC = 0.47 and 0.42, respectively). Measurement of the angle between a line parallel to the proximal radius articular surface and the radial shaft had the highest interrater reliability (0.76); measurement of displacement had the lowest interrater reliability (0.09). The intrarater reliability was excellent for all methods (0.93-0.99) and was also highest when the proximal articular surface reference was used. Of described methods, use of the proximal radius articular surface and the radial shaft as references had the highest interrater and intrarater reliability.
authors.affiliation: Rocky Mountain Orthopaedic Associates, Grand Junction, CO, USA.
authors.forename: James
authors.initials: J
authors.lastname: Ruf
authors.forename: Clifford L
authors.initials: CL
authors.lastname: Craig
authors.forename: Lawrence
authors.initials: L
authors.lastname: Kuhns
authors.forename: Jan
authors.initials: J
authors.lastname: Hall
authors.forename: Frances A
authors.initials: FA
authors.lastname: Farley
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D011859:Radiography / Q000379:methods; D011885:Radius Fractures / Q000000981:diagnostic imaging* / Q000628:therapy; D015203:Reproducibility of Results