[Joint manifestations in connective tissue diseases].

Joint manifestations are common and often constitute the first symptoms or signs of a connective tissue disease, which should be carefully looked for, according to the clinic, in particular with ultrasound and the research of autoantibodies. Articular manifestations are often severe and must be treated accordingly. In lupus, one can distinguish non-deforming non-erosive arthropathy, Jaccoud's arthropathy (deforming non-erosive) and erosive arthropathy (rhupus). Ultrasound has recently shown that destructive forms are in fact more frequent than initially considered. In addition, lupus can be complicated by necrosis or fractures, which are characterized by mechanical pain. In other connective tissue diseases, similar forms of arthropathies and complications are found, with some distinctions.