DeQuervain's
Tenosynovitis
 TenosynovitisDefinition:
An inflammation of the tissue on the thumb side of the wrist is
what is known as deQuervain's Syndrome (or deQuervain's Tenosynovitis).
This is a result of tendons (cord like fibers that attach muscle
to the bone) and synovium (a slick membrane that allows the tendons
to move easily) becoming irritated and causing pain. This usually
involves the abductor pollicis longus and the extensor pollicis
brevis tendons. Inflamed tendons cause the tendon sheath or lining
to swell and thicken, thereby pinching the tendons and making them
unable or slide easily.
Symptoms:
Pain on the thumb side of the wrist is the most common symptom.
It may also be tender to the touch and a small "knot"
may be present.
Causes:
Can be caused by repetitive motions that irritate the tendons or
an injury to the thumb side of the wrist.
Treatment:
Avoid activities with repetitive motions; such as unscrewing jar
lids or grasping tools. These activities put strain on the thumb
and the wrist. Using a thumb splint will help to alleviate the symptoms
associated with this condition.
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