Q:

The classification of fractures of the proximal humerus is based on:

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The classification of fractures of the proximal humerus is based on:


  1. The number of fracture segments and amount of displacement.
  2. The mechanism of injury.
  3. Presence or absence of associated dislocations

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A. The number of fracture segments and amount of displacement.

DISCUSSION: The classification is based on fracture patterns involving the four “segments” of the proximal humerus (anatomic neck, surgical neck, and greater and lesser tuberosities). Fractures are one-, two-, three-, or four-part fractures, depending on the number of fracture segments and amount of displacement. 

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