Treatment of Arnold-chiari I malformation by limited posterior fossa decompression

VernacularTitle:有限小骨窗后颅凹减压显微术式治疗Chiari Ⅰ型畸形
Author: Li-Bin YANG ¹ ; Jian-Wen GU ; Yon QU ; Yong-Qin KUANG ; Xue-Min XING ; Yuan MA
Author Information

1. 成都军区总医院
Keywords: Chiari I malformation; Tonsillar herniation; Limited posterior fossa decompression
From: Chinese Journal of Neuromedicine 2009;8(9):947-949
CountryChina
Language:Chinese
Abstract: Objective To explore the effect of limited posterior fossa decompression(LPFD)in the treatment of Amold-chiari I malformation.Methods A retrospective analysis was conducted among 29 patients undergoing LPFD from 2004 to 2008.The standard surgical procedures included small osseous decompression of the occipital bone above the forarnen magnum,removal of the posterior arch of the atlas,separation of the arachnoid adhesions,and reduction of the inferior cerebellar tonsils,a dural graft for duraplasty.The outcomes of the surgeries were evaluated using the Tator criteria.Results Excellent results were obtained in 23(79.3%)patients according to the Tator scores,and good results were achieved in 6(20.7%)patients.During the follow-up of 15 patients,the syrmgomyelia was found to be further reduced in 9 patients,and 1 patient experienced recurrence.Conclusion Limited posterior fossa decompression is effective for management of Amold-chiari I malformation with minimal invasiveness and complications.