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 ...

The first metacarpal is the bone that connects the wrist to the thumb, making the outer edge of the palm. The bone was in good condition but was surrounded by unsalvageable tissue and at a high ...

(a) Oblique radiograph of the left thumb demonstrating dorsal subluxation of the first metacarpal bone at the basal joint. (b) Restoration of alignment at the first carpometacarpal joint is seen ...