Zygomatic Fractures: Comparison of Methods of Internal Fixation

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We have analyzed different methods of internal fixation of simple displaced fractures of the zygoma in an attempt to define the simplest method(s) of achieving postreduction stability. Twenty-five combinations of interfragmentary wiring and miniplate and screw fixation of fractured zygomas on human skulls were compared for postreduction rotational stability against stresses simulating the muscular forces that act to displace the zygoma once it has been reduced. Analysis of the data suggests that while three-point fixation using either mini-plates or interosseous wires allows for virtually no displacement, two-point fixation and in some cases one-point fixation provide acceptable stability. In general, stable fixation is achieved by methods that involve the use of at least one miniplate and incorporate the frontozygomatic suture line as one of the points of fixation.

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