Three Part Fracture Dislocation


- See: Three Part Fracture

- Discussion:
    - includes large proximal fragment created by frx of surgical neck of humerus;
    - some capsular tissue is almost always retained on large head fragment ensuring its viability;
    - if head fragment is displaced anteriorly, greater tuberosity is usually frxed, whereas lesser tuberosity is retained;
    - frxed tuberosity segment is always displaced in a direction opposite to the dislocation;
    - in posterior fracture dislocation, greater tuberosity is usually retained, whereas the lesser tuberosity is avulsed;

- Treatment:

    - closed reduction w/ GEA to restore prox frag to anatomic position;
    - if gross instability of frx remains after closed reduction of dislocation, then ORIF is required;
    - if reduction of the proximal fragment is blocked by soft tissue interposition, then open reduction is manditory



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Sunday, June 24, 2012 5:53 pm