Yamashita K, Aoki Y, Hiroshima K
Department of Orthopaedics, Osaka National Hospital, Japan.
Clin Orthop Relat Res. 1997 May(338):90-3. doi: 10.1097/00003086-199705000-00013.
The authors report a 73-year-old woman who had spinal cord compression develop because of hypoplasia of the atlas associated with a retroodontoid pseudotumor diagnosed by magnetic resonance imaging. Radiographs of the cervical spine showed narrowing of the spinal canal at the level of the atlas and severe osteoarthrosis of the atlantoaxial joint without atlantoaxial subluxation. A remarkable neurologic recovery followed decompressive laminectomy of the atlas with posterior occipitocervical fusion. Postoperative magnetic resonance imaging showed significant reduction of the retroodontoid pseudotumor by fusion alone. The magnetic resonance imaging finding of spontaneous reduction of retroodontoid pseudotumor after posterior fusion argues against a need for transoral removal, which has a significant complication rate.
作者报告了一名73岁女性，该患者因寰椎发育不全并伴有经磁共振成像诊断的齿突后假肿瘤而发生脊髓受压。颈椎X线片显示寰椎水平椎管狭窄以及寰枢关节严重骨关节炎，但无寰枢椎半脱位。在进行寰椎减压椎板切除术并后路枕颈融合术后，患者神经功能显著恢复。术后磁共振成像显示仅通过融合，齿突后假肿瘤就显著缩小。后路融合术后齿突后假肿瘤自发缩小这一磁共振成像表现表明无需经口切除，因为经口切除有较高的并发症发生率。
