First carpometacarpal joints

Introduction The carpometacarpal (CMC) joints are five wrist joints that connect the distal row of carpal bones to the proximal bases of the five metacarpal bones. The CMC joint of the thumb is also referred to as the trapeziometacarpal (TMC) joint. The carpometacarpal (CMC) joints connect the carpal (carpo-) and metacarpal (-metacarpal) bones of the…