• J. Oral Maxillofac. Surg. · May 2013

    Comparative Study

    Intraoperative imaging with a 3D C-arm system after zygomatico-orbital complex fracture reduction.

    • Frank Wilde, Kai Lorenz, Ann-Kathrin Ebner, Oliver Krauss, Frank Mascha, and Alexander Schramm.
    • Department of Oral and Maxillofacial Surgery, Facial Plastic Surgery, Military Hospital of Ulm and Academic Hospital of the University of Ulm, Ulm, Germany. frank.wilde@extern.uni-ulm.de
    • J. Oral Maxillofac. Surg. 2013 May 1; 71 (5): 894-910.

    PurposeDuring the repair of zygomatico-orbital complex (ZMC) fractures, the lateral orbital wall and/or the orbital floor is often reduced by merely reducing the zygoma. Intraoperative 3D imaging can help surgeons decide whether the orbit must be reconstructed as well. The purpose of this study was therefore to assess the usefulness of intraoperative 3D C-arm imaging in evaluating the adequacy of fracture reduction.MethodsA total of 21 patients with unilateral ZMC fractures were enrolled in this retrospective study. Four fractures were treated with a closed reduction technique. Seventeen fractures were repaired with open reduction and internal fixation of the zygomaticomaxillary buttress area. Intraoperative 3D C-arm imaging was performed in all cases. All patients underwent postoperative computed tomography and a clinical examination no earlier than 5 months after the procedure.ResultsAfter reduction of the ZMC fractures, intraoperative 3D scans showed inadequate repair of the orbital floor in 2 patients and inadequate repair of the lateral orbit in 1 patient. Zygoma and zygomatic arch fracture reduction had to be corrected in 1 further case. The other 17 patients did not need an additional procedure. Postoperative imaging showed that no patient required a secondary operation. No postoperative diplopia or enophthalmos developed in any patient.ConclusionsIntraoperative 3D C-arm imaging appears to be an effective tool for evaluating ZMC fracture reduction. It helps avoid additional procedures and thus helps reduce morbidity. In addition, there appears to be no need for postoperative imaging.Copyright © 2013 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

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