Parametric and non-parametric measures in the assessment of knee and hip osteoarthritis: interobserver reliability and correlation with radiology

摘要: Summary The aim of this study was to evaluate the interobserver reliability parametric and non-parametric variables in clinical assessment hip knee osteoarthritis (OA). Three rheumatologists examined 49 patients with different radiological stages OA using tools such as a tape measure, goniometer, plurimeter hand-held pull gauge. reliabilities calculated by analysis variance (ANOVA) showed much higher values than ones Kendall's tau beta. highest levels correlation between functional tests changes were found for extension ( r =0.57; P =0.54; =0.5; =0.35; =0.79), but correlated poorly changes. In conclusion joint morphology circumference or function Patrick sign should be prefered assessing secondary endpoints trials.