Ankylosis - Definition

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Definition


Ankylosis is a decrease in mobility or, in the most advanced stages, the stiffness of a joint. It corresponds to an either partial or total rigidity, temporary or permanent. Ankylosis joins several clinical symptoms: rigidity, aching while at rest, sometimes warmness localized in the region of the joint. Joint ankylosis is sometimes linked to swelling in the structures situated near the joint such as muscles or tendons, but is most often related to joint disorders like ankylosing spondylitis. Physical therapy permits the improvement in mobility of joints affected by ankylosis. But ankylosis can sometimes be irreversible.

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