UMEM Educational Pearls

Title: Triquetral fractures

Category: Orthopedics

Keywords: x-ray, fracture, wrist (PubMed Search)

Posted: 7/26/2015 by Brian Corwell, MD
Click here to contact Brian Corwell, MD

Triquetral fractures are the 2nd most common carpal fractures (scaphoid).

Dorsal surface most commonly.

Usually occur from impingement from the ulnar styloid, shear injury or from ligamentous avulsion.

XR: best seen on the lateral projection

http://images.radiopaedia.org/images/902179/42b3487baf4fb66183c51cd982477d_big_gallery.jpg

Remember this injury/radiographic appearance the next time you see an avulsion fracture dorsal to the proximal row of carpal bones on the lateral film but are unsure of the donor site.