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Inter- and intraobserver reliabilities and critical analysis of the osteoporotic fracture classification of osteoporotic vertebral body fractures
European Spine Journal ( IF 2.6 ) Pub Date : 2022-04-05 , DOI: 10.1007/s00586-022-07201-2
Maria Schönrogge 1 , Vadzim Lahodski 1 , Ronny Otto 1 , Daniela Adolf 2 , Robert Damm 3 , Albrecht Sitte-Zöllner 1 , Stefan Piatek 1
Affiliation  

Purpose

The Osteoporotic Fracture Working Group (Spine Division of the German Orthopaedic and Trauma Society) has developed a classification system for osteoporotic thoracolumbar fractures, namely the osteoporotic fracture (OF) classification system. The purpose of this study was to determine the inter- and intraobserver reliabilities of the OF classification system for osteoporotic vertebral body fractures (VFs) at a level-one trauma centre.

Methods

Conventional radiography, magnetic resonance imaging (MRI), and computed tomography (CT) scans of 54 consecutive women who sustained an osteoporotic VF were analysed by six orthopaedic traumatologists with varying levels of experience. The inter- and intraobserver reliabilities of the OF classification system were determined using intraclass correlation coefficients (ICCs) and Cohen’s kappa.

Results

The overall interobserver reliability of the OF classification system was good (ICC, 0.62 [0.51, 0.72]). The intraobserver reliability was found to be substantial (overall weighted Cohen’s kappa estimate [95% confidence interval {CI}] = 0.74 [0.67, 0.80]) and better when the radiography, MRI, and CT scans were assessed together than when only the radiography and MRI scans were evaluated, although the difference was not significant.

Conclusion

The OF classification system is easy to use. It shows good interobserver reliability and substantial intraobserver reliability if diagnostic prerequisites (conventional radiography, MRI, and CT scans) are met.



中文翻译:

骨质疏松性椎体骨折的骨质疏松性骨折分类的观察者间和内部可靠性和批判性分析

目的

骨质疏松性骨折工作组(德国骨科和创伤学会脊柱分会)制定了骨质疏松性胸腰椎骨折的分类系统,即骨质疏松性骨折(OF)分类系统。本研究的目的是确定一级创伤中心的骨质疏松性椎体骨折 (VFs) 分类系统的观察者间和观察者内的可靠性。

方法

六位经验不同的骨科外伤科医生分析了 54 名患有骨质疏松性 VF 的连续女性的常规放射照相、磁共振成像 (MRI) 和计算机断层扫描 (CT) 扫描。使用组内相关系数 (ICCs) 和 Cohen 的 kappa 确定 OF 分类系统的观察者间和观察者内可靠性。

结果

OF 分类系统的整体观察者间可靠性良好(ICC,0.62 [0.51,0.72])。观察者内的可靠性被发现是显着的(总体加权 Cohen 的 kappa 估计值 [95% 置信区间 {CI}] = 0.74 [0.67, 0.80]),并且在同时评估放射线照相、MRI 和 CT 扫描时比仅放射线照相时更好和 MRI 扫描进行了评估,尽管差异不显着。

结论

OF分类系统易于使用。如果满足诊断先决条件(常规放射线照相术、MRI 和 CT 扫描),它显示出良好的观察者间可靠性和实质性的观察者内可靠性。

更新日期:2022-04-05
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