Hypoglossal nerve palsy after posterior screw placement on the C-1 lateral mass. Case report |
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Authors: | Hong Jae Taek Lee Sang Won Son Byung Chul Sung Jae Hoon Kim Il Sub Park Chun Kun |
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Institution: | Department of Neurosurgery, St. Vincent Hospital, The Catholic University of Korea, Suwon, Korea. |
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Abstract: | Atlantoaxial fixation in which C1-2 screw-rod fixation is performed is a relatively new method. Because reports about this technique are rather scant, little is known about its associated complications. In this report the authors introduce hypoglossal nerve palsy as a complication of this novel posterior atlantoaxial stabilization method. A 67-year-old man underwent a C1-2 screw-rod fixation for persistent neck pain resulting from a Type 2 odontoid fracture that involved disruption of the transverse atlantal ligament. Posterior instrumentation in which a C-1 lateral mass screw and C-2 pedicle screw were placed was performed. Postoperatively, the patient suffered dysphagia with deviation of the tongue to the left side. At the 4-month follow-up examination, bone fusion was noted on plain x-ray studies of the cervical spine. His hypoglossal nerve palsy resolved completely 2 months postoperatively. To the authors' knowledge, this is the first report in the literature of hypoglossal nerve palsy following C1-2 screw-rod fixation. The hypoglossal nerve is one of the structures that can be damaged during C-1 lateral mass screw placement. |
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