Surgery of the cervical junction at the base of the skull is risky, with a mortality rate of 20-30% in the 1980s and 1990s. At the same time, the commonly used posterior surgery is a form of indirect decompression, and the orthopedic result is unsatisfactory and prone to recurrence in the long term. This type of disease requires neural decompression at the junction of the extended cervical spinal cord, and the deformity must also be corrected in order to obtain good results. In recent years, we were the first in the province to use the strategy of excision of the odontoid process from the anterior to release the gooseneck via transoral or submandibular, and then orthopedic treatment from the posterior in one stage, obtaining satisfactory decompression and orthopedic treatment, and obtaining osseous fusion in all the cases without complications such as death, paralysis, infection, and cerebrospinal fluid leakage. This project has the following advanced features1Transoral anterior “retrograde method” excision of the dentate process decompression, reduce the harassment of the spinal cord, reduce the risk of paralysis. It is a direct and complete decompression with good effect. Explore and develop a set of transoral pre-operative, intra-operative and post-operative infection prevention methods, “sandwich” oral mucosa and spinal cord isolation method. This has resulted in no cases of infection.