Early diagnosis of axial spondyloarthritis is associated with less long-term spinal structural damage: a longitudinal analysis of the Swiss Clinical Quality Management in rheumatic diseases registry.
OBJECTIVES The Assessment of SpondyloArthritis international Society recently defined early axial spondyloarthritis (axSpA) as a duration ≤2 years of axial symptoms. Previous studies have shown no significant difference in short-term outcomes between early and established axSpA patients treated with biologic/targeted s...