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Basal Joint Arthritis

October 21, 2015

osteoarthritis thumb

 

Arthritis at the carpal-metacarpal joint is a common reason for thumb pain.   Thumb strength and motion is needed for so much of what we do: typing, tying a shoe, or writing a note.  We use our thumbs a lot.  Basal Joint arthritis is also called CMC (Carpal-metacarpal) arthritis.  And it develops when the cartilage on the surfaces of the bones that form the thumb joint wears away and the metacarpal bone begins to slip out of the joint. This loss of alignment often creates the appearance of a bump near the wrist.

Basal Joint Arthritis usually starts in people in their forties and fifties.  Some people don’t know they have it because there’s a tendency to alter their activities so thumbs don’t hurt so much.  Unfortunately this type of compensation can result in a cycle of diminished use that makes the thumb and hand progressively weaker.

Basal thumb arthritis is almost always occurs in both hands.  A low-profile thumb brace, like the CMC Arthritis brace can help with thumb pain a lot.



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