What is the prognosis of flexor tenosynovitis/trigger finger due to rheumatoid arthritis (RA)?

Updated: Feb 07, 2020
  • Author: Howard R Smith, MD; Chief Editor: Herbert S Diamond, MD  more...
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Answer

Flexor tenosynovitis of the fingers is common and suggests a poor prognosis. “Triggering” of the finger occurs when thickening or nodule formation of the tendon interacts with the concomitant tenosynovial proliferation, trapping the tendon in a flexed position (stenosing tenosynovitis). Tendon rupture may occur as a consequence of infiltrative synovitis in the digit or bony erosion of the tendon at the wrist (especially the flexor pollicis longus).


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