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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