Trigger Thumb

(redirected from De Quervain's Tenosynovitis)
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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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