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作者报告了5例无明确后脑下疝的脊髓空洞症患者经后颅窝减压后的情况,描述了5例患者的临床、放射学及手术所见,并对其发病机制做了讨论,认为此类疾病有类似Chiari畸形合并脊髓空洞症的发病机制。 方法:所有病人接受了颅颈减压术,术前行颅脑及全脊柱影象学检查,确证有无脑积水及其它脑部异常:除外引起脊髓空洞症的其它原因。二维成像技术用来评价枕骨大孔周围的脑脊液流体动力学情况。经枕下开颅术、颈1椎板切除,硬膜扩大,疏通四脑室出孔。术后进行MRI随访,评价空洞的大小。
The authors report five cases of syringomyelia without definite posterior subretinal hernia after posterior fossa decompression, describing the clinical, radiological and surgical findings of five patients and discussing their pathogenesis, arguing that Such diseases have a similar Chiari malformations associated with syringomyelia pathogenesis. METHODS: All patients underwent craniocervical decompression. Preoperative cranial and whole spine imaging was performed to confirm the presence or absence of hydrocephalus and other brain abnormalities except for other causes of syringomyelia. Two-dimensional imaging was used to assess CSF fluid dynamics around the foramen magnum. After suboccipitating craniotomy, cervical 1 lamina resection, dural enlargement, to clear the four ventricle hole. MRI follow-up after surgery to assess the size of the hole.