Application of exoscope for resection of parasagittal meningioma

Abstract

Objective To investigate the application of exoscope in resection of parasagittal meningioma. Methods A retrospective analysis was conducted on 50 patients with parasagittal meningioma undergoing surgical treatment in a same medical group of our neurosurgical department from March 2021 to March 2023. According to their surgical procedures, they were divided into exoscope group (n=22) and microscope group (n=28). The surgical efficacy, surgical complications and surgical experience were compared between the 2 groups and analyzed. Results There were no significant differences between the 2 groups in terms of sex ratio (male/female: 10/12 vs 12/16), mean age (50.7±10.2 vs 52.3±11.1 years) and mean tumor size (20.79±25.04 vs 20.60±21.38 cm3). No statistical differences were observed in the duration of operation (217.73±59.66 vs 220.54±56.82 min), intraoperative blood loss (181.82±105.27 vs 189.29±103.06 mL), or total resection rate (90.9% vs 89.3%) between the 2 groups. Postoperative neurological dysfunction, infection rate and other complications also presented no notable differences between them. In the operation of parasagittal meningioma, exoscope can provide a larger view of the parasagittal sinus, such as the subdural border, which is difficult to be exposed by single microscope. Moreover, exoscope presented a higher level of comfort operating and better intraoperative teaching display compared to the surgical microscope. Conclusion For parasagittal meningiomas, exoscope is a safe and effective option, with similar surgical outcomes and postoperative complications as surgical microscope. What's more, exoscope presents more comfortable intraoperative ergonomic posture, higher surgical team participation, and better teaching effect.

Keywords

• exoscope
• microscope
• parasagittal meningioma
• neurosurgical procedures