Abstract
Objective To explore the effect of minimally invasive posterior fossa decompression in the surgical treatment of Chiari Ⅰ malformation and its surgical complications. Methods A controlled trial was conducted in 67 patients with Chiari Ⅰ malformation. Among them, 32 patients (treatment group) underwent minimally invasive posterior fossa decompression, while the other 35 patients (control group) underwent traditional posterior fossa craniotomy. Surgical outcomes and complications were compared between these 2 groups. Results No statistic difference in the surgical outcomes and the changes of syringomyelia between the 2 groups were found (P>0.05). The rate of the surgical complications in the treatment group (6.3%) was significantly lower than that in the control group ([31.4%], x~2=6.777, P=0.009). Conclusion The effect of minimally invasive posterior fossa decompression in the treatment of Chiari Ⅰ malformation is similar to that of traditional posterior fossa craniotomy; however, the former one has significantly less surgical complications than the later one. Key words: Chiari Ⅰ malformation; Minimally invasive posterior fossa decompression; Surgical outcome; Surgical complication
Published Version
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