Triquetrum fracture

Revision as of 22:56, 7 February 2012 by Jswartz (talk | contribs) (Created page with "==Background== *2nd most common carpal bone injury *Mechanism of injury **Avulsion Fracture: Twisting motion of hand is suddenly resisted **Body Fracture: Direct trauma (commonly...")
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Background

  • 2nd most common carpal bone injury
  • Mechanism of injury
    • Avulsion Fracture: Twisting motion of hand is suddenly resisted
    • Body Fracture: Direct trauma (commonly accompanied by lunate/perilunate dislocations)

Clinical Features

  • Localized tenderness over dorsum of wrist in area immediately distal to ulnar styloid

Imaging

  • Lateral
    • Best for seeing avulsion fx (tiny flake of bone on dorsum of triquetrum)
  • PA
    • Best for seeing nondisplaced fx

Management

  • Avulsion fracture
    • Wrist splint x1-2wks
  • Body fracture
    • Refer to orthopedist
      • Stable: cast x 6wks
  • Unstable (>1mm displacement): May require internal fixation

Images

Triquetrum Fracture.jpg

Source

  • Tintinalli
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