This is a common condition in which the tendons that extend or straighten the thumb and their surrounding sheaths (extensor pollicus brevis and abductor pollicus longus) become inflamed. Pain is located at the base of the thumb and wrist.
De Quarvain's tenosynovitis is common with repetitive work activities such as wringing and scissoring tasks. Treatment includes rest, splinting, and rehabilitation to restore flexibility, reduce inflammation and modify tasks and activities. Surgery is rarely indicated, but a steroid injection is occasionally neccessary.
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