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Updated: Jul 3, 2026

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
Intraoperative navigation assisted reconstruction of a maxillo-facial gunshot wound
Constantin Stuehmer1, Harald Essig, Alexander Schramm
1Department of Oral and Maxillofacial Surgery, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625, Hannover, Germany. constuehmer@web.de
Introduction:
This case report describes a suicidal gunshot wound to the head using a handgun (9 x 19 mm). During mandibular penetration, the solid hollow point projectile (Aktion4) was deformed but did not fragment. The mandible, mid-face, orbit, and nasal complex were severely damaged. Here, the authors present, for the first time, a new approach for bilateral mid-facial fractures.
Materials And Methods:
For virtual reconstruction, a naso-orbito-ethmoidal complex of an unaffected skull (same age, sex, and ethnic group) was merged into the computed tomography (CT) data set. Based on this data set, a navigation assisted operation was performed.
Conclusion:
The favorable outcome leads us to recommend the technique of merging comparable CT data for reconstructive planning of bilateral mid-facial fractures.
