Medically reviewed by Stuart Hershman, MD Carpometacarpal (CMC) joint arthroplasty is a surgery used to treat thumb arthritis ...

or CMC surgery. "One of the arthritic bones, the bone that the thumb connects to in the wrist, is removed and the joint is rebuilt with one of the patient's tendons," Cohen described. The surgery ...

An orthopaedic surgeon has said that arthritis can be "very debilitating", and it may show up in places you don’t expect. He ...