• Neurosurgery · Sep 2013

    Case Reports

    The mirroring technique: a navigation-based method for reconstructing a symmetrical orbit and cranial vault.

    • Michaël Bruneau, Frédéric Schoovaerts, Rachid Kamouni, Stéphanie Dache, Olivier De Witte, and Serge de Fontaine.
    • Departments of Neurosurgery, Hôpital Erasme, Université Libre de Bruxelles ULB, Brussels, Belgium. mbruneau@ulb.ac.be
    • Neurosurgery. 2013 Sep 1;73(1 Suppl Operative):ons24-8; discussion ons28-9.

    BackgroundThe reconstruction of orbital structures and the cranial vault curvature can be challenging after trauma or wide resections for tumors. Sophisticated methods have been developed recently, but these are resource- and time-consuming.ObjectiveWe report the mirroring technique, which is an effective and costless application for navigation-guided reconstruction procedures.MethodsAt the time of the reconstruction, high-resolution images are reloaded while forcing a left-right axial flip. The pointer subsequently enables a virtual 3-dimensional projection of the position of the contralateral normal anatomy.ResultsThis method was applied successfully in 2 cases of en plaque sphenoid wing meningiomas with secondary exophthalmia.ConclusionThe mirroring technique represents an accurate method of outlining the contralateral normal anatomy onto the pathological side based on navigation guidance.

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