DeQuervain's Syndrome

De Quervain’s tendonitis, or tenosynovitis, is a condition in which irritation or inflammation of the wrist tendons at the base of the thumb causes the tunnel around the tendon to swell and enlarge. Symptoms include painful thumb and wrist movement, swelling over the base of the thumb, and an occasional catching when moving the thumb.

Treatment can include wearing a splint, taking an oral anti-inflammatory medication, or having a steroid injected into the tendon compartment. If symptoms are too severe or do not improve, surgery may be recommended. Surgery opens the compartment to make more room for the inflamed tendons. Normal use of the hand can usually be resumed once comfort and strength have returned.