Abstract.
Twenty-four orthopaedic surgeons classified 42 pairs of radiographs according to the Neer system for proximal humeral fractures. Mean kappa value for inter-observer agreement was 0.27 (95% CI 0.26–0.28) with no clinically significant difference between orthopaedic residents (n=9), fellows (n=6) and specialists (n=9). Mean kappa for agreement of displacement versus non-displacement was 0.41 (95% CI 0.39–0.43) overall, and 0.50 (95% CI 0.45–0.56) within the specialist group. The agreement found in our study is unsatisfactory from a clinical perspective.
Résumé.
24 chirurgiens orthopédistes ont classé 42 paires de radiographies selon la classification de Neer pour les fractures humérales proximales. La valeur moyenne du kappa pour l'accord inter-observateur était 0.27 (95% CI 0.26–0.28) sans différence significative entre résidents (n=9), chirurgiens juniors (n=6) et chirurgiens spécialistes (n=9). La valeur moyenne du kappa pour l'accord sur le critère déplacement ou non-déplacement était globalement 0.41 (95% CI 0.39–0.43), et, dans le groupe spécialiste 0.50 (95% CI 0.45–0.56). Dans une perspective clinique l'accord trouvé dans notre étude est peu satisfaisant.
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Brorson, .S., Bagger, .J., Sylvest, .A. et al. Low agreement among 24 doctors using the Neer-classification; only moderate agreement on displacement, even between specialists. International Orthopaedics (SICOT) 26, 271–273 (2002). https://doi.org/10.1007/s00264-002-0369-x
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DOI: https://doi.org/10.1007/s00264-002-0369-x