Presentation
Chief complaint: injury of the left wrist after falls on stirs yesterday. Clinical examination: The left wrist swelling is noted, tenderness, and limited movement.
Patient Data
The lateral image shows a small bony fragment along the dorsal aspect of the proximal carpal row, adjacent to the dorsal cortex of the triquetrum, known as the pooping duck sign and suggesting triquetral fracture.
The lateral image shows a small bony fragment along the dorsal aspect of the proximal carpal row, adjacent to the dorsal cortex of the triquetrum ( arrow).
Case Discussion
Triquetral fracture is the second most commonest carpal bone fracture after the scaphoid and the pooping duck sign on lateral radiograph refers to an avulsed fracture fragment from the dorsal cortex of the triquetrum projects along the dorsal aspect of the bony structures of the wrist.
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