Surgical Strategy of Endoscopically assisted Periradicular Surgery Using Novel Head-mounted Display System

A novel head-mounted display offers high quality of endoscopic imagery in front of the eyes, irrespective of the head position. We present an application of the head-mounted display system as a personal integrated multi-image monitoring system in endoscopically assisted periradicular surgery. Our head-mounted display system displayed multiple forms of information as integrated, sharp, high-definition endoscope, biological monitor, and X-ray image (such as panoramic and computed tomography images) synchronously using a picture in picture. In addition, this system can cope with both the endoscopic field of view and the direct field of view. While monitoring the patient's general condition with a head-mounted display, the surgery was performed with endoscopic animation. We could also switch to the direct surgical field and endoscopic field of view smoothly without moving the head and without surgical interference. The availability of a head-mounted display system during endoscopically assisted periradicular surgery enabled the provision of a comfortable and appropriate surgical environment for the surgeon.