Title: Technique Modification and Relative Anatomy Study of the Extradural Middle Fossa Approach
Abstract: Objective To provide detailed anatomical information for the extradural middle fossa approach(EMFA) with a proper technique modification. Methods The axial sections of anterior petrous bone structure were microscopically measured in 20 sides of 10 formalin fixed adult cadaveric heads. The EMFA was simulated and observed microscopically with a proper reformation in 6 sides of 3 heads and clinically applied. Results (1)The temporal muscle\|fascia flap with a vessel base attached is formed to reconstruct the cranial base. (2)The key landmarks are identified as a guide of safe operation. (3)The removal of the anterolateral bone of oval foramen and the opening of both the sheath of the mandibular nerve and the dural interspace of Gasserian ganglion help the medial portion of middle fossa dural nearly isolated with the anterior petrous bone. (4) The medial half of SPS was ligated. The double T type of dural incision was formed to improve the exposure of PA and CPA. Conclusion The key landmarks in EMFA were defined. The limitation of anterior petrous apex region bone for safe resection was confined.\;
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot