【摘要】 目的　探讨颅颈区减压及后颅窝扩大重建术治疗小脑扁桃体下疝畸形 (chiarimalforma tion ,CM) 脊髓空洞 (SM)复合征的疗效。　方法　对 1994年至 1999年收治的 37例CM SM复合征患者 ,采取颅颈区减压、显微硬膜下探查松解、后颅窝扩大重建术 ,而不行空洞切开引流。　结果　 37例随访 6个月至 4 5年 ,症状改善 31例 (83 8% ) ;不变 5例 (13 5 % ) ,加重 1例 (2 7% ) ,无死亡 ;MRI复查 ,脊髓空洞均缩小 ,枕大池重现 ,小脑扁桃体及延髓上升。　结论　对CM SM复合征患者 ,行颅颈区减压及后颅窝扩大重建手术 ,可以阻止了病情发展 ,为后脑回位提供了空间 ,避免了脊髓切开 ,手术效果肯定。更多还原

【Abstract】 Objective[WT5”BZ] To study the results of Chiari malformation/syringomyelia(CM SM)complex treated by craniovertebral decompression and posterior fossa reconstruction(PFR). [WT5”HZ]Methods[WT5”BZ] 37 patients of CM SM complex were treated surgically from 1994 to 1999.All patients underwent craniovertebral decompression and posterior fossa reconstruction. The procedure consisted of suboccipital craniectomy and laminectomy of C1 (when necessary C2),exploration and plugging of the obex, and resection of arachnoid adherence. A wide dural graft was used to reconstruct the cisterna magna artificially. Syrinx shunt was not performed. [WT5”HZ]Results[WT5”BZ] Follow up for 0 5 to 4 5 years showed that 31 patients(83 8%) had their symptoms improved, 5 (13 5%) stabilized, but 1(2 7%) deteriorated. Magnetic resonance was ased to evaluate the morphological results. The shrinkage of the syrinx, upward migration of the hindbrain, the formation of an artificial cisterna magna were observed. [WT5”HZ]Conclusions[WT5”BZ] Craniovertebral decompression and posterior fossa reconstruction in restoring the craniovertebral junction are recommended in the treatment of CM SM complex. [WT5”HZ]更多还原