Hamate fracture: Difference between revisions
(Text replacement - "fx" to "fracture") |
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**Hook: | **Hook: | ||
***Common | ***Common | ||
***Assoc | ***Assoc with interrupted swing with club, bat, or racquet (handle impacts hypothenar eminence) | ||
**Body: | **Body: | ||
***Rare | ***Rare | ||
***Assoc | ***Assoc with fracture-dislocations of 4th/5th metacarpals | ||
==Clinical Features== | ==Clinical Features== | ||
Revision as of 03:46, 12 July 2016
Background
- Must exclude injury to ulnar nerve/artery (forms part of Guyon canal)
- May involve the body, hook, or articular surface
- Hook:
- Common
- Assoc with interrupted swing with club, bat, or racquet (handle impacts hypothenar eminence)
- Body:
- Rare
- Assoc with fracture-dislocations of 4th/5th metacarpals
- Hook:
Clinical Features
- Localized tenderness over hamate (elicited by compresing hypothenar eminence)
Imaging
- Standard and carpal tunnel views should be obtained
- CT may be needed to identify occult fracture
Differential Diagnosis
Carpal fractures
- Scaphoid fracture
- Lunate fracture
- Triquetrum fracture
- Pisiform fracture
- Trapezium fracture
- Trapezoid fracture
- Capitate fracture
- Hamate fracture
Management
- Hamate Hook Fracture
- Compression dresing or Forearm volar splint
- Nonunion is common and excision of bone may be necessary
- Body Fracture
- Stable: Forearm volar splint immobilization
- Unstable (displaced, Guyon canal injury): splint immobilization and ortho referral