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  • Title: Evaluation of the reliability of classification systems used for distal radius fractures.
    Author: Kural C, Sungur I, Kaya I, Ugras A, Ertürk A, Cetinus E.
    Journal: Orthopedics; 2010 Nov 02; 33(11):801. PubMed ID: 21053882.
    Abstract:
    The objective of this investigation was to evaluate the reliability of classification systems by determining inter- and intraobserver agreement in displaced distal radius fractures. Radiographs of 32 patients (21 men and 11 women with a mean age of 41.6 years) who presented with a displaced distal radius fracture were classified by 9 orthopedic surgeons (5-25 years experience) using 5 different classification systems (Fernandez, AO, Frykman, Melone, and Universal Classification systems) twice with 20-day intervals. The results were processed with kappa statistics and used in assessment of inter- and intraobserver agreement of the classification systems. When classification systems were compared, the highest kappa coefficient in intraobserver agreement was determined in Universal classification (0.621). Fernandez (0.474), AO (0.309), Frykman (0.305), and Melone classification systems (0.262) followed the Universal system respectively. Kappa statistical results were evaluated using the Landis Koch score system for the assessment of interobserver agreement. According to the Landis Koch score system, the results were insufficient in all classification systems. Fernandez classification system had the highest interobserver agreement (0.235) and Melone classification system had the lowest interobserver agreement (0.056). According to the results of our study, the systems used to classify the displaced distal radial fractures are insufficient. A new classification system that ensures the 3-dimensional assessment of the fracture is more user-friendly and a high inter- and intraobserver agreement is necessary.
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