![]() ![]() The Danis-Weber classification presented the highest reproducibility among instruments and the evaluator's little experience had no negative influence on the reproducibility of ankle fracture classifications. The Danis-Weber classification showed, on average, a significantly higher degree of agreement than the remaining classification systems ( p ≤ 0.0001). Moderate to excellent interobserver agreement was highly significant ( p ≤ 0.0001) for the Danis-Weber classification. Intraobserver analysis alone had a significant agreement in all classifications. Student t-tests for paired samples were applied to detect significant differences in the degree of interobserver agreement between instruments. Intra- and interobserver agreement was analyzed using the weighted Kappa coefficient. All images were evaluated by 11 evaluators at different stages of professional training (5 residents and 6 orthopedic surgeons), at 2 different times. MethodsĪnteroposterior (AP), lateral and true AP radiographs from 30 patients with ankle fractures were selected. The present study aims to analyze the intra- and interobserver reproducibility of the Lauge-Hansen, Danis-Weber, and Arbeitsgemeinschaft für Osteosynthesefragen (AO) classifications for ankle fractures, and the influence of evaluators training stage in these assessments.
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