Efficacy of modified posterior fossa decompression in the treatment of Chiari type Ⅰ malformation with the neuroendoscope

Ping Mao; Yichang Wang; Qi LI; Qian Song; Ning Wang; Minxue Lian; Gang Bao; Baixiang HE

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Efficacy of modified posterior fossa decompression in the treatment of Chiari type Ⅰ malformation with the neuroendoscope

VernacularTitle:神经内镜下改良后颅窝减压术治疗Chiari畸形Ⅰ型的疗效分析
Author: Ping MAO ¹ ; Yichang WANG ¹ ; Qi LI ¹ ; Qian SONG ¹ ; Ning WANG ¹ ; Minxue LIAN ¹ ; Gang BAO ¹ ; Baixiang HE ¹
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1. Department of Neurosurgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
Publication Type:Journal Article
Keywords: Chiari type Ⅰ malformation; posterior fossa decompression; neuroendoscope
From: Journal of Xi'an Jiaotong University(Medical Sciences) 2021;42(4):608-611
CountryChina
Language:Chinese
Abstract: 【Objective】 To investigate the clinical efficacy of modified posterior fossa decompression in treating Chiari type I malformation under the neuroendoscope. 【Methods】 We made a retrospective analysis of the clinical data of 63 patients with Chiari type I malformation treated at the Neurosurgery Department of The First Affiliated Hospital of Xi’an Jiaotong University from January 2015 to December 2019. Of the patients, 28 ones underwent modified posterior fossa decompression assisted with neuroendoscopy (observation group) while 35 received posterior fossa decompression with duraplasty (control group). Tator grading, syringomyelia improvement and complications were compared between the two groups to evaluate the postoperative efficacy. 【Results】 The operations were successful in all the 63 patients and no death or severe neurological dysfunction was observed. The efficacy rate was 78.6% in the observation group and 54.3% in the control group, with significant difference (P<0.05). Furthermore, the postoperative improvement of syringomyelia was significantly better in the observation group than in the control group (P<0.05). However, there was no significant difference in postoperative complications between the two groups (P>0.05). 【Conclusion】 Modified posterior fossa decompression assisted with neuroendoscope is a safe and effective treatment for Chiari type Ⅰ malformation. Intraoperative dural watertight suture and dural-muscle suspension can help reduce the occurrence of subcutaneous effusion.