Abstract
The navigation system makes to a necessary, indispensable for the safe, accurate operation by neurosurgery, the otolaryngology, the orthopedics, and the dental surgery, etc. and the adaptation. In the otolaryngology area, the navigation surgery has increased the occasion to use it for not only the rhinology operation but also the otology operation and the head and neck surgery. However, it is used in the vicinity of the bone organization such as the eye socket, the skull bases, and the side of the head bones in most operation.
This time, we groped for the utilization of the navigation system in the neck operation. The osseous tissue is only a cervical vertebra in the neck operation, and it is impossible to use the cervical vertebra for the registration. The position of the head retroflexion during operation is different from the location of CT for registration, so these might produce the gap of the navigation. Furthermore, a head of the patient and body part moves by operation. The introduction of intraoperative CT, fixing of a head and the body part and an upgrade of software are important for these problems.
