Galeazzi and Monteggia Fracture-Dislocations



·      Whenever one of the two bones of the forearm fractures with considerable shortening (usually through angulation), then something has to happen to “shorten” the other bone
o       The other bone can also fracture
o       The other bone can dislocate
o       Ligaments are torn
·      Galeazzi and Monteggia fractures are both fractures in which there is a fracture with shortening of one of the two bones of the forearm with dislocation of the other bone
·      Galeazzi Fracture (Photo)
o       Mechanism: Fall on outstretched hand with elbow flexed
o       Fracture of the radius with shortening and dislocation of the distal ulna 
o       Dorsal angulation
·      Ulnar plus variance (= radial shortening) of >10 mm implies complete disruption of interosseous membrane means complete instability of radioulnar joint
·      Complications of Galeazzi fracture
o       High incidence of 
§                     Nonunion
§                     Delayed union
§                     Malunion (unstable fracture)
o       Limitation of pronation or supination
·      Monteggia Fracture (Photo)
o       Mechanism: direct blow to the forearm
o       Anterior dislocation of the radial head with a fracture of the ulna, usually angulated dorsally
o       May have associated wrist injury
·      Complications
o       Nonunion
o       Limitation of motion at elbow
o       Nerve abnormalities
·      Reverse Monteggia Fracture
o       Dorsally angulated proximal ulnar fracture and posterior dislocation of radial head


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