What is the pathophysiology of inflammatory flexor tenosynovitis?

Updated: Aug 27, 2018
  • Author: Mark R Foster, MD, PhD, FACS; Chief Editor: Harris Gellman, MD  more...
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Inflammatory FT occurs through a process different from the one that produces infectious FT, though it can lead to similar complications. In inflammatory FT, proliferation of fibrous tissue occurs until there is impingement or constriction of the tendon and surrounding structures. The flexor tendons and the flexor retinaculum can create a tourniquet effect, producing distal swelling and pain. Nodularity of the tendons can lead to crepitus and sometimes frank triggering as the tendon becomes impinged adjacent to a thickened segment of the tendon sheath. [2, 3]

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