Foramen magnum syndrome caused by a dolichoodontoid process.
A 21-year-old Japanese man with basilar impression with an anomalous configuration of the odontoid process and many other vertebral anomalies is reported. We thought that posterior decompression alone would be hazardous; therefore, in one session, the odontoid tip and anterior arch of the atlas were removed transorally, and posterior fixation between the occipital squama and the lamina of C-3 using acrylic plastic was performed. This treatment resulted in marked clinical improvement and required only a short hospital stay.
D000328:Adult; D001368:Axis, Cervical Vertebra / Q000002:abnormalities / Q000000981:diagnostic imaging / Q000601:surgery; D001859:Bone Neoplasms / Q000150:complications* / Q000601:surgery; D002531:Cerebellum; D005539:Foramen Magnum / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008297:Male; D008526:Medulla Oblongata; D009192:Myelography; D009408:Nerve Compression Syndromes / Q000209:etiology* / Q000601:surgery; D009809:Odontoid Process / Q000002:abnormalities / Q000000981:diagnostic imaging / Q000601:surgery; D010016:Osteoma / Q000150:complications* / Q000601:surgery; D010969:Plastics; D010985:Platybasia / Q000150:complications*; D019736:Prostheses and Implants; D013116:Spinal Cord; D014054:Tomography
D010969:Plastics