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- W2366754301 abstract "Objective To evaluate comprehensively the degree of exposure and damage to the cerebellopontine angle region by the retrosigmoid approach.Methods The study mimicked the retrosigmoid approach in 6 adult Chinese cadaver heads (12 sides), and on the basis of the retrosigmoid approach. Extended removal of the suprameatal tubercle and the petrous apex was performed, after every operative step of different approaches, the exposure degree and exposure area of each extended step of the retrosigmoid approach were evaluated by Ammirat's surgical exposure grading system and Horgan method respectively.Results The overall score and the exposure area of each of three steps of the retrosigmoid approach were 3, 3, 3 and (401.80±75.02)mm2, (609.42±122.17)mm2, (769.86±155.38)mm2, respectively. The exposure area increased remarkably with each step. The damage degree of each of three steps of the retrosigmoid approach was 3, 7 and 10.Conclusion The study shows the retrosigmoid approach, with extensive exposure and minor damage, may be the optimal surgical approach for tumors of the cerebellopotine angle region. The exposure can be extended according to the size and extension of the tumors in order to achieve the best nerve protection and total resection." @default.
- W2366754301 created "2016-06-24" @default.
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- W2366754301 date "2008-01-01" @default.
- W2366754301 modified "2023-09-23" @default.
- W2366754301 title "Evaluation of the degree of exposure and damage to the cerebellopontine angle region by the retrosigmoid approach" @default.
- W2366754301 hasPublicationYear "2008" @default.
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