A modern approach to planning and surgical removal of a foreign body from a maxillary sinus: a clinical case

Abstract

Relevance. If a foreign body is present in a maxillary sinus, it should be surgically removed. Endoscopic and radical surgery are the main methods. Clinician’s subjective feelings determine the surgical access, which can cause complications. Therefore, the search for new methods of planning and visualizing the operation stages remains relevant.Materials and methods. Before the operation, the patient had a cone-beam computed tomography in a marker holder frame. The 3D slicer program allowed the segmentation of the foreign body and surrounding anatomical features. A marker, fixed on the patient's head, allowed transmitting information to the augmented reality glasses during the operation.Results. The surgery was performed under local anesthesia in an outpatient facility. The diameter of the antrotomy hole was 5 mm. No postoperative complications were recorded.Conclusion. The proposed technique provides significant visual control and minimal trauma to the sinus during surgery.