pubmed-article:7716628 | pubmed:abstractText | The application of a video-interactive frameless stereotactic guidance system for the treatment of ventral cervicomedullary junction compression is described in a patient with basilar invagination, odontoid dysgenesis, and a Chiari malformation who had irreducible impingement on the ventral brainstem by a partially fused mass of bone made up of the malformed odontoid peg, the inferior clivus, and dorsally protruding osteophytes at the odontoid-clival junction. | lld:pubmed |