Reproducibility assessment of different descriptions of the Kellgren and Lawrence classification for osteoarthritis of the knee

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• 作者：Felipe Borges Gonç ; alves ; Felipe Almeida Rocha ; Rodrigo Pires e Albuquerque ; ^{rodalbuquerque19@gmail.com} ; Alan de Paula Mozella ; Bernardo Crespo ; Hugo Cobra
• 关键词：Knee ; Radiography ; Classification
• 刊名：Revista Brasileira de Ortopedia (English Edition)
• 出版年：2016
• 出版时间：November-December 2016
• 年：2016
• 卷：51
• 期：6
• 页码：687-691
• 全文大小：537 K
• 卷排序：51

文摘

To assess the inter- and intraobserver reproducibility of the original version and different descriptions of the Kellgren and Lawrence classification used in epidemiological studies for osteoarthritis of the knee.MethodsThe study included 72 patients with osteoarthritis of the knee. Three medical members of the Brazilian Society of Knee Surgery were invited to evaluate the images. An intra- and interobserver analysis was conducted, with an interval of one month. The intraobserver agreement was analyzed using the weighted Cohen's Kappa coefficient. The interobserver agreement was analyzed using the Krippendorff alpha coefficient (α).ResultsThe intraobserver assessment indicated conflicting results. In the interobserver analysis, the level of agreement was superficial.ConclusionsThe classification of Kellgren and Lawrence and its variants generated a low reproducibility between observers. The intraobserver analysis showed a lack of uniformity in the use of this classification and its variants, even among experienced observers.