Trigger Thumb

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A congenital fixed flexion deformity of the thumb, due to a narrowed flexor pollicus longus tendon sheath in the region of the metacarpophalangeal joint, or due to a focal expansion of the tendon
Aetiology Idiopathic; it is more common in patients with diabetes, osteoarthritis, and in a background of tenosynovial proliferation:inflammatory arthritis, gout, or chronic infection (eg, fungus or atypical mycobacteria). It may present at birth or be acquired and, if severe, require surgical correction—e.g., with miniscalpel-needle percutaneous release
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References in periodicals archive ?
Flexor tenosynovitis and de Quervain's tenosynovitis are the 2 most common types of tenosynovitis of the hand.
A pooled quantitative literature search concerning the treatment of de Quervain's tenosynovitis compared 7 studies (a total of 459 wrists) with identical diagnostic and success criteria.
In 1 small, controlled, prospective, double-blinded study, the authors attempted to correlate clinical relief of de Quervain's tenosynovitis with accuracy of injection into the first dorsal compartment.
This suggests that the location of injection may be important in de Quervain's tenosynovitis.
The Brigham and Women's Hospital guidelines for treatment of de Quervain's tenosynovitis state that corticosteroid injections "may be very helpful," and that they should be considered if symptoms persist beyond 6 weeks of conservative treatment.
UpToDate recommends steroid injection for de Quervain's tenosynovitis if pain persists for more than 2 to 6 weeks despite splinting, icing, and NSAID therapy.