Axial spondyloarthritis (axSpA) may be classified according to Assessment of SpondyloArthritis International Society (ASAS) into<unk>  spondylitis (AS) and non-radiographic axSpA (nr-axSpA). Formerly<unk>  spondylitis (AS) termed as spondyloarthritides or spondyloarthropathies. AS has been regarded as the prototype of spondyloarthritis. Previously<unk>  spondylitis (AS), spondyloarthritis (SpA), reactive arthritis, psoriatic arthritis, arthritis and spondylitis associated with Crohn disease and ulcerative colitis which belong to inflammatory bowel disease (IBD).
Ankylosing spondylitis classification
Osteoarthritis classification
Septic arthritis classification
Psoriatic arthritis classification
Bursitis classification
Fibromyalgia classification
Ankylosing spondylitis physical examination
Bursitis epidemiology and demographics