Ortho-Preferred

Triquetrium       


- See:
      - Blood Supply to the Wrist
      - Triquetrolunate Dissociation

- Discussion:
     - triquetrium is the 3rd most commonly fractured carpal bone;
     - ular side of the wrist is supported by TFC, which articulates w/ both lunate and the triquetrum;

- Exam:
     - lies just distal to ulnar styloid process, in proximal carpal row;
     - to facilitate its palpation, hand must be radially deviated so that triquetrium moves out from under the ulnar styloid process;
     - triquetrum may be difficult to find, since it also lies under pisiform;

- Radiographs: 15 deg Reversed Oblique View


Late treatment of a dorsal transscaphoid, transtriquetral perilunate wrist dislocation with avascular changes of the lunate.



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Thursday, December 20, 2012 11:06 pm