de Quervain Tendinosis
Causes, symptoms and treatment options for thumb tendonitis
Patients with de Quervain syndrome (pronounced “dek-ER-vane” syndrome) have painful tendons on the thumb side of the wrist. Tendons are the ropes that the muscle uses to pull the bone. You can see them on the back of your hand when you straighten your fingers. In de Quervain syndrome, the tunnel (the first extensor compartment; see Figure 1 A-B in the slides below) where the tendons run narrows due to the thickening of the soft tissues that make up the tunnel. Hand and thumb motion cause pain, especially with forceful grasping or twisting.
What does de Quervain syndrome look like?
Causes of de Quervain syndrome
Doctors are not sure what causes de Quervain syndrome. Patients often describe a feeling of inflammation, but studies have shown that the process is not inflammatory. People of all ages get it. When new mothers develop de Quervain syndrome, it typically appears 4 to 6 weeks after delivery. The old theory that it was caused by wringing out cloth diapers has been replaced by concerns about holding the baby, but changes in hormones and swelling seem more probable.
How is de Quervain syndrome treated?
Treatments that can relieve symptoms include:
- A splint that stops you from moving your thumb and wrist.
- Tylenol or aspirin type medications (e.g., ibuprofen).
Treatments that attempt to change the course of the disease include:
- A cortisone-type of steroid injection into the tendon compartment. It has not been clearly established that these injections change the course of the disease and response to the injection varies.
- Surgery to open the tunnel and make more room for the tendons.
Learn more about surgery to relieve de Quervain syndrome in this short video
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© 2016 Carolina Hand and Sports Medicine
© 2012 American Society for Surgery of the Hand. Developed by the ASSH Public Education Committee