• Osvaldo Mendes de Oliveira Filho, William Dias Belangero, and João Batista Mendes Teles.
• Faculdade de Ciências Médicas da Universidade Estadual de Campinas (Unicamp), Campinas, SP.
• Rev Assoc Med Bras. 2004 Jan 1; 50 (1): 55-61.

ObjectiveThe purpose of this study was to determine the intra-observer and interobserver reproducibility of Frykman, AO and Universal classifications for the fractures of the distal radius.MethodsIn this study, 40 radiographs of fractures of the distal radius were selected and classifed by orthopedists of different centers and levels of experience, determining the intra-observer and interobserver reproducibility of the classifications using Kappa statistic method.ResultsThe medium intra-observer concordance observed was moderate to Frykman and Universal classifications and light to the AO system. The medium interobserver reproducibility was light in the two readings to Frykman and Universal classifications and despicable in the second reading of the AO classification.ConclusionAll the classifications used presented questionable interobserver reproducibility compromising the use of the three evaluated systems.

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