ArticleNeurosurgery practice2026
A 2-Year Experience of Robot-Assisted Epilepsy Surgery Using a New Cranial Robotic System With Optical Tracking: Variables Influencing Accuracy and Complications.
Article in Neurosurgery practice, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND AND
objectivesOur institution began using the Globus ExcelsiusGPS cranial robot in 2023 for placement guidance in epilepsy surgeries including depth electrodes for stereoelectroencephalography (SEEG), laser interstitial thermal therapy (LITT), NeuroPace responsive neurostimulator, and Medtronic deep brain stimulator. In our first 2 years, we performed 58 epilepsy surgeries for 37 patients using the robot for 466 trajectories. Surgery time, accuracy of trajectory, and hemorrhage rate were analyzed.
methodsWe performed a retrospective chart review of epilepsy surgeries using the Globus ExcelciusGPS cranial robot over our first 2 years of experience. Potential influencing factors analyzed included trajectory length, skull thickness, angle of trajectory with the skull, imaging used for registration, head holder, stabilization of the head, drill used, brain location, type of surgery, the number of each case performed, and the number of trajectories placed. We also analyzed hemorrhage rate and surgery time. Factorial analysis of variance, multiple regression, and Pearson correlation statistics were used.
resultsAccuracy of electrode or laser placement was significantly affected by imaging modality used for robot registration (
conclusionThe accuracy of surgery using the Globus ExcelsiusGPS robot was influenced by factors including the trajectory plan and equipment used. The type of surgery performed influenced the amount of surgical time. These findings may improve the efficiency and accuracy of epilepsy surgery using this cranial robot.
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