Articles: neuronavigation.
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To report a technique for endoscopic cystoventriculostomy guided by preoperative navigated transcranial magnetic stimulation (nTMS) and tractography in a patient with a large speech eloquent arachnoid cyst. ⋯ The combination of nTMS and tractography supports the identification of a safe trajectory for cystoventriculostomy in eloquent arachnoid cysts.
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Two-dimensional radiographic methods have been proposed to evaluate the radiographic outcome after indirect decompression through extreme lateral interbody fusion (XLIF). However, the assessment of neural decompression in a single plane may underestimate the effect of indirect decompression on central canal and foraminal volumes. The present study aimed to assess the reliability and consistency of a novel 3-dimensional radiographic method that assesses neural decompression by volumetric analysis using a new generation of intraoperative fan-beam computed tomography scanner in patients undergoing XLIF. ⋯ Here we demonstrate a new volumetric analysis technique that is feasible, reliable, and reproducible amongst independent raters for central canal and foraminal volumes in the lumbar spine using an intraoperative computed tomography scanner.
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Focal cortical dysplasia (FCD) is one important cause of drug-resistant epilepsy potentially curable by epilepsy surgery. We investigated the options of using neuronavigation and intraoperative magnetic-resonance tomographical imaging (MRI) to avoid residual epileptogenic tissue during resection of patients with FCD II to improve seizure outcome. ⋯ Excellent seizure outcome after surgery of patients with FCD II positively correlated with the amount of resection, histologic subtype, and the use of intraoperative MRI, especially when intraoperative second-look surgeries were performed.
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Journal of neurotrauma · Dec 2017
Early complications, morbidity, and mortality in octo- and nonagenarians undergoing posterior intraoperative spinal navigation-based C1/2 fusion for type II odontoid process fractures.
Type II odontoid fractures represent the most common cervical spine injury in the elderly. The decision for surgical treatment is still controversial, particularly with regard to the elevated peri-operative risk attributed to frequent comorbidities and poor bone quality. The purpose of this study was to assess both short-term mortality and mid-term clinical and radiological outcome in the elderly. ⋯ Atlanto-axial fusion by using intra-operative spinal navigation is a safe and effective procedure in the elderly, with few complications and preservation of favorable post-operative quality of life. The overall major complication rate was 11%. Surgery in the very old should be considered as first-choice treatment.
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Case Reports Comparative Study
Three-dimensional cortical surface reconstruction versus operative findings: their similarity and applications.
Three-dimensional cortical surface reconstruction (3DCSR) is an important tool for operations involving cerebral cortex, but data on its similarity to actual cortical architecture are lacking. In this study, the authors systematically tested the similarity between operative findings and 3DCSR built by a neuronavigation system and illustrated its applications. ⋯ Authors have systematically demonstrated that 3DCSR built by neuronavigation system in this study provides detailed anatomy of cortical surface with a high degree of similarity to operative findings even in the presence of cortical distortion, leading to various applications beyond navigation alone.