Presentation
Fall on outstretched hands with hyperflexion. Tenderness on the lateral aspect dorsum of the wrist.
Patient Data
Plain X-ray shows a small bone chip related to the dorsal aspect of the wrist. No abnormality is seen in the AP view as the pisiform is normally overlapped on the triquetral bone in the frontal view of the wrist.
State of art MSCT with MPR clearly shows fracture triquetral bone with small bone chip is seen related to the posterior aspect of the triquetrum.
Case Discussion
Triquetral fracture is the second most common fracture after scaphoid fracture. One view is too few; always look for the lateral view for suspected fracture of the triquetral bone. A small bone chip related to the dorsal aspect of the wrist is diagnostic of triquetral fracture.
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