Carpometacarpal (CMC) joint arthroplasty is a surgery to treat severe arthritis in the thumb. Doctors recommend it when other treatments, like braces or cortisone shots, no longer help with pain.

CMC arthritis of the thumb is a problem at the base of the thumb, the carpometacarpal joint which is a saddle joint, which is an extremely common problem, particularly and primarily among women.

We have discussed in the past some procedures for basilar joint arthritis of the thumb and we have discussed the diagnosis of basilar joint arthritis of the CMC joint ... in a soft splint at ...