What causes pyogenic flexor tenosynovitis?

Updated: Aug 27, 2018
  • Author: Mark R Foster, MD, PhD, FACS; Chief Editor: Harris Gellman, MD  more...
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Answer

Pyogenic FT results from an infectious agent multiplying in the closed space of the flexor tendon sheath and culture-rich synovial fluid medium. Natural immune response mechanisms cause swelling and migration of inflammatory cells and mediators. The septic process and this inflammatory reaction within the tendon sheath quickly interfere with the gliding mechanism, leading to adhesions and scarring. The ultimate consequences are tendon necrosis, disruption of the tendon sheath, and digital contracture. [18, 19]


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