Triquetral fracture

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[edit] Discussion

  • 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.

[edit] 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.

[edit] Images

Hand radiographs of a patient with a triquetral fracture

[edit] See Also

[edit] External Links

[edit] References