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Wheeless' Textbook of Orthopaedics
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Rheumatoid Trigger Finger



- See: Rheumatoid Hand:

- Sites of Triggering in the Rheumatoid Patient:
    - A1 pulley (as w/ convential trigger finger)
    - FDS decussation (may require excising slip of sublimis or an intratendinous nodule);
    - nodule in FDP near A2 can cause finger to lock into extension;

- Non Operative Rx:
    - consider more than usual 3 steroid injections;

- Surgical Treatment:
    - resecting or incising A1 pulley may cause bowstringing of tendon and deviation of finger toward midline with attempts at
          digital flexion, and increased tendency to anterior MCP subluxation;
    - local tenosynovectomy and early postop ROM;
          - in RA surgical synovectomy of flexor tendons (for triggering) is a rewarding procedure & one of best buys in RA hand surgery;
          - Brunner incision
          - tenosynovium is removed from around the flexor tendons while care is taken to preserve the A2, A4, and
                  if possible the A1 pulleys (see flexor tendon pulleys);
    - if necessary resect one slip of FDS (if necessary for gluiding), but this should be avoided if possible;




Treatment considerations in the complicated rheumatoid hand.
    A Miller--Breslow.   Hand Clinics. Vol 5. 1989 p 279-289.

Flexor tenosynovitis in the rheumatoid hand.
    DC Ferlic and ML Clayton.   J. Hand Surgery Vol 3. 1978. p 364-367.

Treatment of tenosynovitis in rheumatoid arthritis.
    CR Stirrat.   Hand Clinics. Vol 5. 1989. p 257-278.









Original Text by Clifford R. Wheeless, III, MD.