World Neurosurg
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We used magnetic resonance imaging (MRI) to assess the radiological status of the multifidus muscles (MFMs) after biportal endoscopic spinal surgery (BESS) and evaluated the extent of MFM injury and atrophy. ⋯ The MFM change on MRI after BESS became significant on both sides as the operative time increased. However, the change showed a tendency to reverse within several months, and no substantial change in the MFM cross-sectional area was found. We have concluded that MFM changes after BESS might correlate with an increased operative time but will resolve over time.
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The aim of this study was to discuss the relationship between Ki-67 values and the degree to which chordoma invade the clivus and to certify that the prognosis of chordoma is worse when it invades the middle and lower clivus than when it does not. ⋯ Statistical analysis revealed that Ki-67 values when the chordoma invaded the middle and lower clivus were significantly higher than when it did not. Thus, we can conclude that the prognosis is worse when chordoma invade the middle and lower clivus.
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Quality assurance (QA) is a way to prevent mistakes in advance. Although it has been previously reported for surgical setup, there is no effective approach for minimizing microsurgical technical errors before an operation is done. Neurosurgery resident operative errors during brain aneurysm surgery could be foreseen by practicing in an ex vivo hybrid simulator with microscopic fluorescein vessel flow image. ⋯ There was a left-shift on the quality assurance line with residents who practiced brain aneurysm microsurgical errors in an ex vivo model. A multicentric prospective study is necessary to confirm the hypothesis that real operative error could be reduced after training in a realistic simulator.
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Textual analysis of obituaries provides insight into the shared values of a profession or community. Neurosurgeon obituaries are frequently published in both the medical literature and the lay press, but the content of these works has never been analyzed. ⋯ Our preliminary text analysis of neurosurgeon obituaries suggest what values are shared among the professional community and general public regarding the legacy of a neurosurgeon.
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The present study aimed to develop and evaluate a nomogram for predicting the overall survival (OS) of patients with low-grade glioma (LGG). ⋯ We have developed a ready-to-use nomogram model that includes clinical characteristics to predict OS. The nomogram might provide consultation and risk assessments for subsequent treatment of patients with LGG.