Sunday, November 9, 2008

Trigger finger (Stenosing tenosynovitis)

1. What is the mechanism of trigger finger?
2. What are predisposing factors for trigger finger?
3. What is seen clinically?
4. What is the treatment?

Answers:
1. Repetitive trauma resulting in inflammation of flexor tendon sheaths of digits, resulting in a nodule in the tendon and abnormal glide. This nodule gets caught on the annular sheath.
2. Repetitive trauma, DM, RA, >40yrs.
3. Catching or locking with finger flexion. Palpable nodule.
4. Immobilization by splinting, NSAIDs, steroid injection. Surgical release if conservative treatment fails.

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