NeurosurgeryPub Date : 2025-03-04DOI: 10.1227/neu.0000000000003402
Zahra Ramezani, Vafa Rahimi-Movaghar
{"title":"Letter: Neurological Surgery Manpower Training and Density in Islamic Republic of Iran: A Population Study.","authors":"Zahra Ramezani, Vafa Rahimi-Movaghar","doi":"10.1227/neu.0000000000003402","DOIUrl":"https://doi.org/10.1227/neu.0000000000003402","url":null,"abstract":"","PeriodicalId":19276,"journal":{"name":"Neurosurgery","volume":" ","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurosurgeryPub Date : 2025-03-03DOI: 10.1227/neu.0000000000003396
Anne Coyle, Erin Graves, Theodore Hannah, Valeda Yong, Kaleb Rostmeyer, Cherie P Erkmen, Kadir Erkmen
{"title":"In Reply: Dear Program Director: An Evaluation of Implicit Bias in Letters of Recommendation for Neurosurgery Residency.","authors":"Anne Coyle, Erin Graves, Theodore Hannah, Valeda Yong, Kaleb Rostmeyer, Cherie P Erkmen, Kadir Erkmen","doi":"10.1227/neu.0000000000003396","DOIUrl":"https://doi.org/10.1227/neu.0000000000003396","url":null,"abstract":"","PeriodicalId":19276,"journal":{"name":"Neurosurgery","volume":" ","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Novel Surgical Technique for Post-traumatic Syringomyelia Progressing to the Medulla Oblongata: Evidence of Upward Drainage of Central Canal Fluid Within the Spinal Cord.","authors":"Chenghua Yuan, Zhencheng Xiong, Houyuan Lv, Chenyuan Ding, Pingchuan Xia, Huixin Xue, Hui Zhan, Mingchu Li, Yueqi Du, Can Zhang, Zhenlei Liu, Kai Wang, Wanru Duan, Zuowei Wang, Xingwen Wang, Hao Wu, Zan Chen, Fengzeng Jian, Jian Guan","doi":"10.1227/neu.0000000000003378","DOIUrl":"10.1227/neu.0000000000003378","url":null,"abstract":"<p><strong>Background and objectives: </strong>The exact pathways of fluid outflow within the central canal (CC) of the spinal cord are not completely understood. The best management approach for patients with post-traumatic syringomyelia that progresses to the cranial end of the CC, also known as post-traumatic syringobulbia (PT-syringobulbia), is still a topic of debate. This study aims to introduce a new surgical indication for the foramen magnum and foramen of Magendie dredging (FMMD) procedure in patients with PT-syringobulbia and prospectively assess its surgical outcomes.</p><p><strong>Methods: </strong>The study included 15 consecutive patients with symptomatic PT-syringobulbia who underwent the FMMD procedure and 20 patients who underwent traditional arachnolysis. The surgical procedure included decompression of the foramen magnum, removal of all potential intradural factors, and clearance of any possible obstructions at the foramen magnum and the foramen of Magendie. The major presenting symptoms or signs were assessed in terms of symptom improvement, stabilization, or deterioration. Preoperative MRI and postoperative MRI were used to assess syringobulbia resolution. The mean follow-up period was 24 months (range 12-60 months).</p><p><strong>Results: </strong>Twelve patients showed clinical improvement, and 3 were stable. The mean length of the syrinx observed on preoperative MRI was 17.3 spinal levels, and the mean syringobulbia/medulla oblongata index was 69%. The mean syringobulbia/medulla oblongata index observed on postoperative MRI was 29%. The values were significantly lower than the preoperative values ( P < .01). Statistical analysis revealed no significant differences in age, sex, or initial clinical/radiological presentation between the FMMD and arachnolysis groups ( P > .05). However, the FMMD group showed superior outcomes compared with the arachnolysis group, including better clinical improvement, syringomyelia regression, lower complication rates, and reduced revision surgery rates ( P < .01).</p><p><strong>Conclusion: </strong>FMMD emerges as a potentially safe and effective surgical strategy for post-traumatic syringobulbia by restoring physiological fluid outflow through the cranial end of CC in midterm follow-up.</p>","PeriodicalId":19276,"journal":{"name":"Neurosurgery","volume":" ","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurosurgeryPub Date : 2025-03-03DOI: 10.1227/neu.0000000000003385
Stavros Matsoukas, Divaldo Camara, Arianne Boylan, Patrick C Reid, Konstantinos Margetis
{"title":"Outcomes After Decompression Only Versus Decompression and Fusion for Lumbar Facet Cysts: A Systematic Review and Meta-Analysis.","authors":"Stavros Matsoukas, Divaldo Camara, Arianne Boylan, Patrick C Reid, Konstantinos Margetis","doi":"10.1227/neu.0000000000003385","DOIUrl":"https://doi.org/10.1227/neu.0000000000003385","url":null,"abstract":"<p><strong>Background and objectives: </strong>Lumbar facet cysts (LFCs) are considered the result of facet degeneration and segmental instability. Their surgical management has been controversial. Decompression only (DO) is less invasive, but it does not address the underlying degeneration/spondylolisthesis. Decompression and fusion (DF) is more invasive with higher perioperative morbidity. Comparative studies are scant in current literature. The objective of this study was to identify all such studies and synthesize outcomes including recurrence and reoperation rates. Secondary outcomes included back pain resolution, radiculopathy resolution, and length of stay.</p><p><strong>Methods: </strong>In this PROSPERO-registered Preferred Reporting Items for Systematic Reviews and Meta-Analyses-compliant systematic review, the MEDLINE, Embase, and Cochrane databases were searched to identify comparative studies of DO vs DF patients with LFCs. A meta-analysis with random effects model was performed, and heterogeneity was assessed with the I2 statistic. Visual representation of results was performed with forest plots.</p><p><strong>Results: </strong>Nine comparative studies encompassing 3393 patients (DO: 1940, DF: 1453) were included. Spondylolisthesis rates were statistically significantly lower in the DO group (DO 24.3%; DF 65.8%; OR 0.04; CI 0.01-0.31; P < .01). The DO group had statistically significantly higher odds of cyst recurrence (DO 6.3%; DF 0%; OR 5.74; CI 1.51-21.72; P = .01) and lower odds of back pain resolution at follow-up (DO 56.6%; DF 74.5%; OR 0.43; CI 0.2-0.91; P = .03) compared with the DF group. Reoperation rates (DO 7.2%; DF 5.9%; OR 1.37; CI 0.72-2.6; P = .3) and odds for resolution of radiculopathy (DO 77.3%; DF 87.2%; OR 0.6; CI 0.3-1.21; P = .2) were comparable between the 2 groups. Length of stay was statistically significantly shorter in the DO group (mean difference -1.5; CI -2.38 to -0.63; P < .001).</p><p><strong>Conclusion: </strong>Decompression with concomitant fusion was associated with lower odds of cyst recurrence and higher odds of back pain resolution but slightly longer hospital stay. Reoperation rates and radiculopathy resolution were comparable between the two groups.</p>","PeriodicalId":19276,"journal":{"name":"Neurosurgery","volume":" ","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurosurgeryPub Date : 2025-03-03DOI: 10.1227/neu.0000000000003395
Anthony V Nguyen, Sarah-Marie C Gonzalez, Jose M Soto, Awais Z Vance
{"title":"Letter: Dear Program Director: An Evaluation of Implicit Bias in Letters of Recommendation for Neurosurgery Residency.","authors":"Anthony V Nguyen, Sarah-Marie C Gonzalez, Jose M Soto, Awais Z Vance","doi":"10.1227/neu.0000000000003395","DOIUrl":"https://doi.org/10.1227/neu.0000000000003395","url":null,"abstract":"","PeriodicalId":19276,"journal":{"name":"Neurosurgery","volume":" ","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurosurgeryPub Date : 2025-03-01Epub Date: 2025-02-14DOI: 10.1227/neu.0000000000003330
Chibuikem A Ikwuegbuenyi, Noah Willett, Galal Elsayed, Osama Kashlan, Roger Härtl
{"title":"Next-Generation Neuromonitoring in Minimally Invasive Spine Surgery: Indications, Techniques, and Clinical Outcomes.","authors":"Chibuikem A Ikwuegbuenyi, Noah Willett, Galal Elsayed, Osama Kashlan, Roger Härtl","doi":"10.1227/neu.0000000000003330","DOIUrl":"https://doi.org/10.1227/neu.0000000000003330","url":null,"abstract":"<p><p>Neuromonitoring in minimally invasive spine surgery (MISS) provides real-time feedback to surgeons and enhances surgical precision for improved patient safety. Since the 1970s, established techniques like somatosensory evoked potentials, motor evoked potentials, and electromyography have been integrated into spine surgeries, significantly reducing the risk of neurological complications. These neuromonitoring modalities have been crucial, particularly in complex procedures with limited direct visualization. Refinements in these techniques have led to greater confidence in nerve root safety, contributing to the success of MISS. Despite some debate regarding the routine use of neuromonitoring in noncomplex surgeries, its importance in complex cases is well-documented. Studies have demonstrated high sensitivity and specificity rates for these techniques, with multimodal approaches offering the best outcomes. Advancements in mechanomyography and its potential integration into neuromonitoring protocols highlight the continuous improvement in this field. This review explores the historical development, current techniques, clinical outcomes, and future directions of neuromonitoring in MISS. It emphasizes the critical role of these technologies in enhancing surgical outcomes and patient care. As MISS continues to evolve, adopting next-generation neuromonitoring systems, including artificial intelligence and machine learning, will play a pivotal role in advancing the efficacy and safety of spine surgeries.</p>","PeriodicalId":19276,"journal":{"name":"Neurosurgery","volume":"96 3S","pages":"S111-S118"},"PeriodicalIF":3.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143414446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurosurgeryPub Date : 2025-03-01Epub Date: 2025-02-14DOI: 10.1227/neu.0000000000003343
Bayard R Wilson, Timothy Y Wang, John O'Toole
{"title":"Augmented Reality in Spine Surgery.","authors":"Bayard R Wilson, Timothy Y Wang, John O'Toole","doi":"10.1227/neu.0000000000003343","DOIUrl":"https://doi.org/10.1227/neu.0000000000003343","url":null,"abstract":"<p><p>Augmented reality (AR) is a technology that allows digital information to be superimposed onto a user's view of the real world, thereby enhancing the user's experience of a given real-world scenario. As recent advances in AR technology have made it more available for a variety of applications, hospitals and doctors have begun to test its utility in the operating room. AR technology allows surgeons to supplement their view of the operative field with useful patient-specific information for which they might otherwise need to turn their attention away from the task at hand. For spine surgeons in particular, AR has begun to emerge as a promising option to assist with surgical performance. The field of spine surgery is uniquely positioned to benefit from AR, given the extent to which many spine surgeons already rely on intraoperative navigation techniques for certain surgical tasks, including pedicle screw and interbody device placement. In this review, we outline the origins and history of AR in spine surgery and cover the current state of the literature regarding the applications, benefits, and drawbacks of its use within the field. Lastly, we speculate as to the future of AR in spine surgery and propose which gaps in knowledge must be addressed before the technology enjoys a degree of adoption on par with currently available intraoperative navigation techniques.</p>","PeriodicalId":19276,"journal":{"name":"Neurosurgery","volume":"96 3S","pages":"S103-S110"},"PeriodicalIF":3.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143414847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurosurgeryPub Date : 2025-03-01Epub Date: 2024-08-05DOI: 10.1227/neu.0000000000003133
Ramin A Morshed, Minh P Nguyen, Mark W Youngblood, Haley K Perlow, Calixto-Hope G Lucas, Akash J Patel, Joshua D Palmer, James P Chandler, Philip V Theodosopoulos, Stephen T Magill, William C Chen, David R Raleigh
{"title":"Gene Expression Changes Associated With Recurrence After Gross Total Resection of Newly Diagnosed World Health Organization Grade 1 Meningioma.","authors":"Ramin A Morshed, Minh P Nguyen, Mark W Youngblood, Haley K Perlow, Calixto-Hope G Lucas, Akash J Patel, Joshua D Palmer, James P Chandler, Philip V Theodosopoulos, Stephen T Magill, William C Chen, David R Raleigh","doi":"10.1227/neu.0000000000003133","DOIUrl":"10.1227/neu.0000000000003133","url":null,"abstract":"<p><strong>Background and objective: </strong>Patients who undergo gross total resection (GTR) of Central Nervous System World Health Organization (WHO) grade 1 meningioma constitute a \"low-risk\" group, but some low-risk meningiomas can recur despite reassuring clinical and histological features. In this study, gene expression values in newly diagnosed WHO grade 1 meningiomas that had undergone GTR were evaluated for their association with recurrence.</p><p><strong>Methods: </strong>This was a retrospective, international, multicenter cohort study that included WHO grade 1 meningiomas that underwent GTR, as first treatment, based on postoperative magnetic resonance imaging. Normalized gene expression values from a previously validated 34-gene panel were evaluated for their association with recurrence. Kaplan-Meier, multivariable Cox proportional hazard analyses, and K-means clustering were performed to assess the association of genes of interest with recurrence and identify molecular subgroups among clinically and histologically low-risk meningiomas.</p><p><strong>Results: </strong>In total, 442 patients with WHO grade 1 meningiomas that underwent GTR and had available gene expression profiling data were included in the study. The median follow-up was 5.0 years (interquartile range 2.6-7.7 years), local recurrence occurred in 36 patients (8.1%), 5-year local freedom from recurrence was 90.5%, and median time to recurrence was 2.9 years (range 0.5-10.7 years). Eleven genes were associated with local recurrence, including lower expression of ARID1B , ESR1 , LINC02593 , PGR , and TMEM30B and higher expression of CDK6 , CDKN2C , CKS2 , KIF20A , PGK1 , and TAGLN . Of these genes, PGK1 had the largest effect size. K-means clustering based on these 11 genes distinguished 2 molecular groups of clinically and histologically low-risk meningiomas with significant differences in local freedom from recurrence (hazard ratio 2.5, 95% CI 1.2-5.1, P = .016).</p><p><strong>Conclusion: </strong>Gene expression profiling may help to identify newly diagnosed WHO grade 1 meningiomas that have an elevated risk of recurrence despite GTR.</p>","PeriodicalId":19276,"journal":{"name":"Neurosurgery","volume":" ","pages":"521-528"},"PeriodicalIF":3.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141889858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reconstructive Endovascular Treatment of Compensative-Flow-Related Posterior Circulation Aneurysms With Anterior Circulation Artery Occlusion.","authors":"Tao Quan, Xin Zhang, Jinyi Li, Zhaofei Wang, Xiaojie Fu, Xin Feng, Haowen Xu, Chuanzhi Duan, Sheng Guan","doi":"10.1227/neu.0000000000003148","DOIUrl":"10.1227/neu.0000000000003148","url":null,"abstract":"<p><strong>Background and objectives: </strong>The aim of this study was to delineate the reconstructive endovascular treatment and periprocedural management of compensative-flow-related posterior circulation aneurysms with anterior circulation artery occlusion.</p><p><strong>Methods: </strong>A total of 87 patients were enrolled in this retrospective double-center cohort study from May 2011 to November 2023. The baseline demographics, aneurysm characteristics, etiology and status of anterior circulation artery occlusion, treatment modalities, anesthesia management, complications, and clinical and angiographic outcomes of the patients were retrospectively analyzed in this study.</p><p><strong>Results: </strong>Atherosclerosis and moyamoya disease were found to be the two main etiologies of anterior circulation artery occlusion. The mean American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology scores were significantly higher in patients with posterior communicating artery trunk collaterals than those with posterior cerebral artery pial collaterals ( P < .05). Treatment strategies included stent-assisted coiling (55, 63.2%), standard coiling (22, 25.3%), and flow diversion or flow diversion-assisted coiling (8, 9.2%). The overall rate of procedure-related ischemic and hemorrhagic complications (10.3%) was considered acceptable. The ischemic complication was significantly associated with a >20% drop in mean arterial pressure ( P < .05) during the procedure. Finally, 86.2% of all patients showed a modified Rankin Scale score of 0 to 2 at the final clinical follow-up.</p><p><strong>Conclusion: </strong>Our study indicates that reconstructive endovascular treatments are feasible and effective strategies for compensative-flow-related posterior circulation aneurysms with anterior circulation artery occlusion. However, these treatments are associated with a risk of periprocedural ischemic complications, which can be reduced by collateral arterial assessment, appropriate periprocedural anesthesia management, and antiplatelet treatment.</p>","PeriodicalId":19276,"journal":{"name":"Neurosurgery","volume":" ","pages":"630-639"},"PeriodicalIF":3.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142018134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurosurgeryPub Date : 2025-03-01Epub Date: 2024-12-20DOI: 10.1227/neu.0000000000003316
Paulina Majewska, Ole Solheim
{"title":"In Reply: Working Status in Patients With Untreated Unruptured Intracranial Aneurysms: A Descriptive Longitudinal Study.","authors":"Paulina Majewska, Ole Solheim","doi":"10.1227/neu.0000000000003316","DOIUrl":"10.1227/neu.0000000000003316","url":null,"abstract":"","PeriodicalId":19276,"journal":{"name":"Neurosurgery","volume":" ","pages":"e73-e74"},"PeriodicalIF":3.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142865008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}