- Triquetral fractures generally occur on the dorsal surface.
- The dorsal surface of the triquetrum may be fractured by means of impingement from the ulnar styloid, shear forces, or avulsion from strong ligamentous attachments.
- Surgical intervention is rarely required, but a persistently symptomatic chip fracture may require excision.
 Imaging Findings
- Dorsal avulsion injuries are best detected on a lateral projection.
- CT or MR images may be more sensitive than conventional radiographs for detection of avulsion injuries.
Hand radiographs of a patient with a triquetral fracture
 See Also
 External Links
- Charles A. Goldfarb, Yuming Yin, Louis A. Gilula, Andrew J. Fisher, and Martin I. Boyer. Wrist Fractures: What the Clinician Wants to Know. Radiology 2001 219: 11-28.