Advanced
Technical
IVT
CMC joint arthroplasty
Also written as: CMC — carpometacarpal
Surgical reconstruction of the carpometacarpal joint, typically involving the thumb base.
Full Definition
Surgical replacement or reconstruction of the carpometacarpal joint, most commonly performed for thumb base arthritis. Procedures include trapeziectomy with ligament reconstruction and tendon interposition (LRTI), total joint replacement, or arthrodesis. The goal is to reduce pain and restore function in patients with advanced arthritis of the thumb CMC joint.
Usage
Usage note: CMC typically refers to the thumb base joint unless otherwise specified; distinguish from other CMC joints of the fingers.
In Context
- "CMC joint arthroplasty with LRTI provided excellent pain relief and functional improvement at six months." — Research abstract
- "Total CMC joint arthroplasty was chosen over fusion due to the patient's bilateral involvement." — Surgical consultation note
Also known as
thumb base arthroplasty
trapeziometacarpal arthroplasty
Contrasted with
CMC joint fusion
arthrodesis
Don't confuse with
MCP joint arthroplasty
wrist arthroplasty