Background: The 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.
Objective: We report the mirroring technique, which is an effective and costless application for navigation-guided reconstruction procedures.
Methods: At 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.
Results: This method was applied successfully in 2 cases of en plaque sphenoid wing meningiomas with secondary exophthalmia.
Conclusion: The mirroring technique represents an accurate method of outlining the contralateral normal anatomy onto the pathological side based on navigation guidance.
From: The Mirroring Technique: A Navigation-Based Method for Reconstructing a Symmetrical Orbit and Cranial Vault by Bruneau et al.