Erosion-free rheumatoid arthritis : clinical and conceptional implications—a BARFOT study
Background: Bone erosions may appear early or later during rheumatoid arthritis (RA), causing joint damage and functional impairment. However, in some patients erosions do not occur, even after several years of disease. This study evaluates the prevalence, clinical relevance and possible predictors of erosion-free RA. Methods: Six hundred and eight patients from an early RA cohort (BARFOT) having