The pisometacarpal ligament is a crucial ligament that connects the pisiform bone to the base of the fifth metacarpal bone. This ligament plays a significant role in stabilizing the wrist joint and supporting the hand's movements. While there are no direct synonyms for the pisometacarpal ligament, the wrist joint has other ligaments that play a similar role in stabilizing the wrist joint. These ligaments include the ulnar collateral ligament, radial collateral ligament, and the dorsal radiocarpal ligament. All of these ligaments, together with the pisometacarpal ligament, ensure that the wrist joint is stable and can support the hand's movements.