Computer-assisted navigation in craniomaxillofacial tumors.

Surgical procedures in the head and neck region require a detailed knowledge of this region's complex anatomy. Anatomic changes due to tumor growth present special challenges for the surgeon. In addition to the clinical examination, which is still of fundamental importance, imaging procedures such as computer-aided surgical navigation technology are currently being used in the preoperative, intraoperative, and postoperative assessments of anatomic changes. For purposes of analysis, we have analyzed the application of navigation technology into 2 categories: 1) minimally invasive procedure and biopsy; and 2) resection of extensive tumors and reconstruction after tumor surgery. Navigation can make tumor surgery more reliable by specifying correct safety margins, protecting vital structures, and facilitating the reconstruction process.