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Comparative Analysis of Endoscopic Transorbital Approach and Extended Mini-Pterional Approach for Sphenoid Wing Meningiomas with Osseous Involvement: Preliminary Surgical Results

 Hun Ho Park  ;  Jihwan Yoo  ;  In-Sik Yun  ;  Chang-Ki Hong 
 WORLD NEUROSURGERY, Vol.139 : e1-e12, 2020-07 
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Endoscopic transorbital approach ; Extended mini-pterional approach ; Minimally invasive technique ; Sphenoid wing meningioma ; Surgical result
Objective: Sphenoid wing meningiomas (SWMs) can be treated with complete surgical resection and the recently introduced endoscopic transorbital approach (ETOA) offers a minimally invasive alternative. In this study, the surgical outcome of ETOA and the extended mini-pterional approach (eMPTA) for SWMs with osseous involvement is compared. Methods: From October 2015 to May 2019, 24 patients underwent surgery for SWMs with osseous involvement. Among them, tumor resection was performed by ETOA for 11 patients (45.8%) and eMPTA for 13 patients (54.2%). The tumor characteristics, surgical outcome and morbidity, and approach-related aesthetic outcome were analyzed and compared retrospectively between ETOA and eMPTA based on SWM classification. Results: The location of SWMs was mostly the middle sphenoid ridge (group III) (45.8%), followed by the greater sphenoid wing (group IV) (29.2%). Simpson resection grades I/II were achieved in 9 of 11 patients (81.8%) with ETOA and 11 of 13 patients (84.6%) with eMPTA. There were no differences in tumor characteristics between the 2 approaches. Surgery time, surgical bleeding, and hospital length of stay were significantly shorter with ETOA. Three patients had transient surgical morbidities such as diplopia (n = 1), ptosis (n = 1), and cerebrospinal fluid leak (n = 1) after ETOA. No differences could be seen in surgical morbidities between ETOA and eMPTA. Conclusions: ETOA can provide direct access to the sphenoid bone and resectability with a more rapid and minimally invasive exposure than does eMPTA. Maximal subtotal resection with extensive sphenoid bone decompression for tumors with cavernous sinus infiltration is the key to a good clinical outcome, regardless of the surgical approach.
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1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Plastic and Reconstructive Surgery (성형외과학교실) > 1. Journal Papers
Yonsei Authors
Park, Hun Ho(박현호) ORCID logo https://orcid.org/0000-0002-2526-9693
Yoo, Jihwan(유지환)
Yun, In Sik(윤인식) ORCID logo https://orcid.org/0000-0003-1103-7047
Hong, Chang Ki(홍창기) ORCID logo https://orcid.org/0000-0002-2761-0373
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