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The radiocarpal joint is a synovial joint thatâs also found in the wrist. The radius articulates with the first row of carpal bones, except for the pisiform. It has a fibrous joint capsule thatâs attached to that distal end of the radius and the ulna and to the carpal bones.
The five bones in your hand that connect your wrist to your thumb and fingers are called the metacarpal bones. You have a fracture (break) in one or more of these bones. This is called a hand (or metacarpal) fracture. Some hand fractures require wearing a splint or a cast.