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The AO system for primary mandibular reconstruction

P Lavertu1, J R Wanamaker, E L Bold

  • 1Department of Otolaryngology, Cleveland Clinic Foundation, Ohio 44195.

American Journal of Surgery
|November 1, 1994
PubMed
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Primary mandibular reconstruction using AO plates offers a safe and effective method for restoring jaw continuity and appearance. While complications can occur, particularly after irradiation, the technique provides a viable alternative for lateral defects.

Area of Science:

  • Oral and Maxillofacial Surgery
  • Reconstructive Surgery

Background:

  • Mandibular defects often require reconstruction to restore continuity and function.
  • Rigid plate fixation is a common method for primary mandibular reconstruction.

Purpose of the Study:

  • To evaluate the outcomes and complications of primary mandibular reconstruction using AO plates.
  • To assess the technique's efficacy in restoring continuity and cosmesis.

Main Methods:

  • Retrospective review of 27 patients undergoing primary mandibular reconstruction with AO plates.
  • Analysis of early and late complications, cosmetic results, and functional outcomes.
  • Correlation of complications with factors such as prior irradiation.

Main Results:

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  • 44% of patients experienced early complications, with higher incidence after irradiation (P = 0.02).
  • Late complications included tumor recurrence, pain, infection, plate exposure, and fracture.
  • Good to excellent cosmetic results were achieved in most patients.
  • Full mastication was not restored; speech and deglutition were impacted by soft-tissue resection.

Conclusions:

  • Primary mandibular reconstruction with AO plates is a safe and reliable technique for restoring continuity and cosmesis.
  • This method is a viable alternative to free vascularized osseocutaneous flaps for lateral defects.
  • Functional outcomes, particularly mastication, remain a challenge.
  • Complication rates are influenced by factors such as prior irradiation.