Microsurgical management of skull base meningioma communicating orbit and cranial cavity via superior orbital fissure

Abstract

Objective To study the characteristics and growth patterns of skull base meningioma communicating the orbit and cranial cavity via superior orbital fissure,and to discuss the surgical methods and intraoperative management.Methods A retrospective review of the clinical data of 60 patients underwent microsurgical treatment through orbito -peronal approach for cranio -orbital communicating skull base meningiomas in our department between Jan 2007 and Jan 2010 was performed to study the specificity of this kind of tumors and the key - points of operation method.Results Total tumor resection was achieved in 56 of 60 cases,subtotal resection in 3,and part resection in 1.The rate of total resection was 93％.Conclusions Microsurgical resection through orbito -peronal approach is suitable for skull base meningioma communicating the orbit and cranial cavity via superior orbital fissure.Postoperation treatment such as radiotherapy could reduce the recurrence rate. Key words: Cranio - orbital; Meningioma; Microsurgery