Triquetrum fracture: Difference between revisions
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*Localized tenderness over dorsum of wrist in area immediately distal to ulnar styloid | *Localized tenderness over dorsum of wrist in area immediately distal to ulnar styloid | ||
== | ==Differential Diagnosis== | ||
{{Carpal fractures}} | |||
==Diagnosis== | |||
[[File:Triquetrum_Fracture.jpg|thumb|Avulsion fracture of triquetrum]] | |||
*Lateral/oblique in partial pronation | *Lateral/oblique in partial pronation | ||
**Best for seeing avulsion fx (tiny flake of bone on dorsum of triquetrum) | **Best for seeing avulsion fx (tiny flake of bone on dorsum of triquetrum) | ||
*PA | *PA | ||
**Best for seeing nondisplaced fx | **Best for seeing nondisplaced fx | ||
==Management== | ==Management== | ||
Revision as of 10:35, 10 June 2015
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
Differential Diagnosis
Carpal fractures
- Scaphoid fracture
- Lunate fracture
- Triquetrum fracture
- Pisiform fracture
- Trapezium fracture
- Trapezoid fracture
- Capitate fracture
- Hamate fracture
Diagnosis
- Lateral/oblique in partial pronation
- 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
- Refer to orthopedist