Category: Orthopedics
Keywords: wrist injury, FOOSH, Distal radius fracture (PubMed Search)
Posted: 6/27/2015 by Brian Corwell, MD
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Colles fracture
Almost 90% of distal radius fractures
Mechanism: Fall on the outstretched, hyperextended, radially deviated wrist with the forearm in pronation
Often seen in older patients and in those with osteoporosis
Distal radius fracture with dorsal angulation/displacement and/or radial shortening. "Dinner fork deformity"
https://en.wikipedia.org/wiki/Colles'_fracture#/media/File:Colles_fracture.JPG
Smith fracture (aka reverse Colles fracture)
Mechanism: Fall on the outstretched, flexed, radially deviated wrist with the forearm in pronation
Usually younger patients with high energy mechanism
Distal radius fracture with volar angulation or volar displacement. "Garden spade" deformity
Often unstable requiring ORIF
http://www.radiologyassistant.nl/data/bin/w440/a50979780ec887_Smith'-tek.jpg
Radial styloid fracture aka Chauffeur fracture
Fall causing compression of scaphoid against the styloid with wrist in dorsiflexion and ulnar deviation
Often associated with intercarpal ligamentous injuries (i.e., scapholunate dissociation, perilunate dislocation)
Often requires ORIF
http://images.radiopaedia.org/images/611818/cc52cce7bcfd8c905bcc7b5d2b6a65.jpg