For people who don't find relief with medication or braces, Cohen recommends carpometacarpal arthroplasty, or CMC surgery. "One of the arthritic bones, the bone that the thumb connects to in the ...
where the thumb meets the wrist. This joint, called the carpometacarpal (CMC) joint or the basilar joint, is important when trying to grip or pinch. Thumb arthritis is more common in women than ...