What is Dequervain’s Stenosing Tenosynovitis?

DeQuervain’s stenosing tenosynovitis is a condition brought by irritation or inflammation of the wrist tendons at the base of the thumb. The inflammation causes the compartment around the tendon to swell and enlarge, making thumb and wrist movement painful.

How is Dequervain’s Stenosing Tenosynovitis Diagnosed?

Tenderness directly over the tendons on the thumb-side of the wrist is the most common finding. A test is generally performed in which the patient makes a fist with the fingers clasped over the thumb.

What are the Causes?

The cause of DeQuervain’s tenosynovitis is an irritation of the tendons at the base of the thumb, usually caused by taking up a new, repetitive activity.