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J Neurol Neurosurg Psychiatry 2002;72:378-381 doi:10.1136/jnnp.72.3.378
  • Original Article

Use of neuronavigation and electrophysiology in surgery of subcortically located lesions in the sensorimotor strip

  1. W Eisner1,
  2. J Burtscher1,
  3. R Bale2,
  4. R Sweeney4,
  5. F Koppelstätter3,
  6. S Golaszewski3,
  7. C Kolbitsch5,
  8. K Twerdy1
  1. 1Department of Neurosurgery, University of Innsbruck, Anichstrasse 35, A-6020 Innsbruck; Austria
  2. 2Department of Radiology I, University of Innsbruck
  3. 3Department of Radiology II, University of Innsbruck
  4. 4Department of Radiotherapy-Oncology, University of Innsbruck
  5. 5Department of Anaesthesia and Intensive Care, University of Innsbruck
  1. Correspondence to:
 Dr Wilhelm Eisner, Neurosurgical Department, University of Innsbruck, Anichstrasse 35, A-6090 Innsbruck, Austria;
 wilhelm.eisner{at}uklibk.ac.at
  • Received 12 March 2001
  • Accepted 13 November 2001
  • Revised 13 November 2001

Abstract

Objectives: Subcortical lesions in the sensorimotor strip are often considered to be inoperable. The purpose of this study was to evaluate the usefulness of a combined approach for surgery in this region, aided by a robotic neuronavigation system under electrophysiological control.

Methods: In a prospective study on 10 patients, space occupying lesions in the sensorimotor central area were removed using the Surgiscope® robotic navigation system and the Nicolet Viking IV® electrophysiological system.

Results: Precise tumour localisation with the neuronavigation system and the information on the patient's cortical motor distribution obtained by bipolar cortical stimulation led to postoperative improvement in motor function in all but one patient. Seven of the patients had focal, defined pathology (four metastases; two cavernoma; one aspergilloma).

Conclusion: Due to the implementation of two recent technologies, surgery of lesions in the subcortical sensorimotor region can be performed with greater confidence.

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