De Quervain Tenosynovitis
De Quervain Tenosynovitis (also known as De Quervain Syndrome, De Quervain Disease or Gamer's Thumb), is a painful inflammatory condition that is characterized by discomfort and pain along the lateral aspect of your hand (mostly around the thumb region).
What is De Quervain Tenosynovitis?
De Quervain's tenosynovitis is the painful swelling of the extensor pollicis brevis (EPB) and abductor pollicis longus (APL) tendons at the base of the thumb. When the swollen tendons rub against the narrow tunnel they pass through, it causes pain at the base of the thumb and into the lower arm.

De Quervain Tenosynovitis
Signs and Symptoms of De Quervain Tenosynovitis
The classic presentation of De Quervain Tenosynovitis is specific for swelling, pain and discomfort of the thumb while performing normal wrist motion. Most patients also complain of letting-go sensation or sticking sensation in the thumb that makes it difficult to perform activities that require active involvement of thumb (such as pinching or grasping).
Causes of De Quervain Tenosynovitis
The exact cause of De Quervain tenosynovitis is not yet known but it is believed that chronic abuse or overuse of the wrist can precipitate the symptoms by irritating the tendon sheaths of thumb muscles. Other causes include;
- History of inflammatory joint conditions such as rheumatoid arthritis
- Injury to the thumb or wrist muscles
- Certain occupational activities that requires repetitive motion across the wrist can also lead to De Quervain tenosynovitis (such as plumbing, motor mechanics etc.)
Statistics and Epidemiology related to De Quervain Tenosynovitis
The prevalence of De Quervain tenosynovitis in general population is 1-2%.
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How MHC Treatment Options Can Help De Quervain Tenosynovitis
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