Challenging the osseous component of sphenoorbital meningiomas

Acta neurochirurgica
Svenja MaschkeStefan Wolfsberger

Abstract

Intraosseous growth is a unique feature of sphenoorbital meningiomas (SOM). Its close relation to neurovascular structures limits complete surgical resection and possibly contributes to the high recurrence rate. To evaluate the growth behavior of intraosseous remnants and develop a protocol for precise intraoperative visualization of intraosseous SOM. We included 31 patients operated for SOM from 2004 to 2017. The growth velocity of the intraosseous tumor component was volumetrically calculated in 20 cases. To improve accuracy of image guidance, we implemented a specialized bone surface-based registration algorithm. For intraoperative bone visualization, we included CT in multimodality continuous image guidance in 23 patients. The extent of resection (EOR) was compared with a standard MR-only navigation group (n = 8). In 11/20 cases (55%), a progressive regrowth of the intraosseous SOM remnant was noted during a mean follow-up of 52 months (range 20-132 months). We observed a mean increase of 6.2 cm3 (range 0.2-23.7 cm3) per patient and side during the follow-up period. Bone surface-based registration was significantly more accurate than skin surface-based registration (mean 0.7 ± 0.4 mm and 1.9 ± 0.7 mm, p < 0.001). The EOR of...Continue Reading

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Citations

Oct 4, 2020·European Journal of Ophthalmology·Jorge AgiEzekiel Weis
Jul 25, 2020·Journal of Neuro-oncology·Caroline ApraDorian Chauvet
Jul 6, 2021·The Journal of Craniofacial Surgery·Rema ShahMichael Alperovich

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Methods Mentioned

BETA
surgical resection

Software Mentioned

SPSS

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