The triquetrum is one of the eight wrist bones. Triquetral fractures are common in falls on an outstretched hand.
Swelling may be minimal, but the area is usually very tender. Radiographic imaging of various wrist positions will confirm diagnosis and determine if any other fractures or tissue damage resulted from the fall.
Because of the rich blood supply to the area, triquetral fractures generally heal very well and require little more than short-arm casting until union is achieved – approximately three to six weeks.