Lunate fracture: Difference between revisions
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*Isolated lunate injuries are rare | *Isolated lunate injuries are rare | ||
*Occurs via FOOSH mechanism | *Occurs via FOOSH mechanism | ||
*Blood supply enters distal end | *Blood supply enters distal end | ||
*Fx puts proximal portion at risk for avascular necrosis (Kienbock’s disease) | |||
==Clinical Features== | ==Clinical Features== | ||
Revision as of 19:19, 8 June 2016
Background
- Isolated lunate injuries are rare
- Occurs via FOOSH mechanism
- Blood supply enters distal end
- Fx puts proximal portion at risk for avascular necrosis (Kienbock’s disease)
Clinical Features
- Axial compression applied along 3rd metacarpal elicits tenderness
Diagnosis
- PA and lateral views
- MRI/CT may be required to identify occult fractures
Differential Diagnosis
Carpal fractures
- Scaphoid fracture
- Lunate fracture
- Triquetrum fracture
- Pisiform fracture
- Trapezium fracture
- Trapezoid fracture
- Capitate fracture
- Hamate fracture
Management
- Short arm thumb spica splint
- Ortho referral
See Also
Source
- Tintinalli