DOI: 10.11958/20160045
A study on the diagnostic reliability of classification of intertochanteric fractures
LI Wanqiang
WU Dou
ZHENG Genqiang
MA Xiaolong
LIU Qiang
Abstract：Objective To compare the diagnostic reliability of AO classification and Evans-Jensen classifications in X ray film and three-dimensional CT reconstruction images intertochanteric fractures, and explore advantage of the three-di?mensional CT. Methods A retrospective study was performed to evaluate 54 patients with intertochanteric fractures. Three orthopaedic surgeons were asked to make assessment of fracture classifications using X ray film and the three-dimen?sional CT images. Agreement test was performed to evaluate interobserver and intraobserver reliability for fracture classifica?tion. Results When X ray film was used, mean Kappa values of interobserver reliability for AO and Evans-Jensen classifi?cations between three surgeons were 0.597 and 0.571, that was medium consistency. While using three-dimensional CT to AO classification, lower Kappa value was 0.411, medium consistency. Evans-Jensen classification, Kappa value was 0.704, highly consistency. Each surgeon respectively using X ray film and three-dimensional CT, the mean Kappa values of AO and Evans-Jensen classification were 0.464, medium consistency and 0.191 (0.160-0.233), weak consistency. Conclusion Both classifications based on X ray film show moderate consistency, using three-dimensional CT does not improve the consis?tency of AO classification. The three-dimensional CT is not applicable in Evans-Jensen classification.
Keywords：tomographyX-ray computedimagingthree-dimensionalX-ray filmdiagnosisAO classificationEvans-Jensen classificationintertochanteric fracture
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 274-277 )