Foot and ankle surgery : official journal of the European Society of Foot and Ankle Surgeons · 2016
An evaluation of the Herscovici classification for fractures of the medial malleolus.
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Aitken Stuart A, Johnston Ian, Jennings Angus C, Chua Ivan T H, Buckley Richard E
Аннотация
BACKGROUND: Despite its use in the literature, the application of the Herscovici classification system for medial malleolus fractures has not been evaluated.
METHODS: We aimed to determine the reliability and accuracy of the Herscovici classification. The blinded radiographs of 130 patients were independently classified by four orthopaedic trauma surgeons. We held a consensus meeting where observers agreed on a final classification and this served as our reference standard. We used weighted kappa (κ) coefficients of agreement.
RESULTS: Twenty-four fractures (18%) were deemed unclassifiable. The classification system demonstrated moderate inter-observer reliability (κ=0.54, 95% CI 0.40-0.68) but substantial reproducibility (κ=0.64, 95% CI 0.51-0.79). Accuracy, when compared with the reference standard, was κ=0.54 (95% CI 0.40-0.66).
CONCLUSIONS: The obliquity of the fracture line, and fracture extension, created difficulty in classification in 26% of cases. 18% of our cases could not be classified by majority decision. Our results emphasise the challenges faced in classifying these fractures. Future work should focus on refining the Herscovici classification.
METHODS: We aimed to determine the reliability and accuracy of the Herscovici classification. The blinded radiographs of 130 patients were independently classified by four orthopaedic trauma surgeons. We held a consensus meeting where observers agreed on a final classification and this served as our reference standard. We used weighted kappa (κ) coefficients of agreement.
RESULTS: Twenty-four fractures (18%) were deemed unclassifiable. The classification system demonstrated moderate inter-observer reliability (κ=0.54, 95% CI 0.40-0.68) but substantial reproducibility (κ=0.64, 95% CI 0.51-0.79). Accuracy, when compared with the reference standard, was κ=0.54 (95% CI 0.40-0.66).
CONCLUSIONS: The obliquity of the fracture line, and fracture extension, created difficulty in classification in 26% of cases. 18% of our cases could not be classified by majority decision. Our results emphasise the challenges faced in classifying these fractures. Future work should focus on refining the Herscovici classification.