Rod migration through foramen magnum into posterior fossa after cervical spine lateral mass fixation: A case report and literature review.

Background: Posterior cervical fusion is one of the most common surgical procedures performed for the treatment of many cervical spine pathologies. Hardware failure, due to rod displacement either cranially or caudally, may occur.

Case Description: Two years following a subaxial laminectomy/lateral mass fusion (from C3 to C6) for stenosis, a 67-year-old female, with a history of trauma 2 months ago, presented with headaches, right-sided facial palsy, and right complete ophthalmoplegia.