CMC joint arthritis of the thumb is a dysfunction and arthritic degeneration of the carpal metacarpal joint of the thumb. This joint is at the base of the thumb and causes severe pain with ...

This bone is part of the carpometacarpal (CMC) joint, which connects the trapezium to the metacarpal of the thumb. CMC joint anthroplasty helps reduce pain and makes it easier to grip and pinch ...

(a) Oblique radiograph of the left thumb demonstrating dorsal subluxation of the first metacarpal bone at the basal joint ... the proximal phalanges of the thumb and index finger, and the ...