Bennett's fracture: Difference between revisions
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==Background== | ==Background== | ||
*Fracture of the base of the 1st metacarpal (thumb) which extends ''into'' the CMC joint. | *Fracture of the base of the 1st metacarpal (thumb) which extends ''into'' the CMC joint. | ||
* | *Most common type of fracture of the thumb, and is nearly always accompanied by some degree of subluxation or dislocation of CMC | ||
==Clinical Features== | ==Clinical Features== | ||
*Usually caused by axial force to thumb | |||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
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==Management== | ==Management== | ||
*Thumb spica splint if non-displaced | |||
==See Also== | ==See Also== | ||
*[[Thumb Fracture]] | *[[Thumb Fracture]] | ||
*[[Rolando's Fracture]] | |||
==References== | ==References== | ||
*www.orthobullets.com | |||
[[Category:Ortho]] | [[Category:Ortho]] | ||
Revision as of 09:56, 11 June 2015
Background
- Fracture of the base of the 1st metacarpal (thumb) which extends into the CMC joint.
- Most common type of fracture of the thumb, and is nearly always accompanied by some degree of subluxation or dislocation of CMC
Clinical Features
- Usually caused by axial force to thumb
Differential Diagnosis
Thumb fracture classification
- Type I (Bennett's fracture)
- Fracture-dislocation of the base of the metacarpal (intra-articular)
- Base fragment is aligned with trapezium, but distal portion is subluxed by abductor pollicis longus
- Most common type of thumb fracture; nearly always accompanied by some subluxation or dislocation of CMC
- Type II (Rolando's fracture)
- Comminuted version of a Bennett's fracture (intra-articular)
- Type III
- Extra-articular (transverse or oblique)
- Type IV
- Extra-articular pediatric fracture involving the proximal physis
Diagnosis
Management
- Thumb spica splint if non-displaced
See Also
References
- www.orthobullets.com