Journal of neurological surgery. Part A, Central European neurosurgery最新文献

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Clinical Features and Survival Outcomes of Pediatric Meningioma Patients: An Integrative Analysis Based on the SEER Database. 儿童脑膜瘤患者的临床特征和生存结局:基于SEER数据库的综合分析。
IF 0.9 4区 医学
Journal of neurological surgery. Part A, Central European neurosurgery Pub Date : 2026-08-01 Epub Date: 2026-04-13 DOI: 10.1055/a-2846-3421
Rui Zhang, Siyu Li, Yanming Ren, Qing Mao, Yuekang Zhang, Xiaodong Niu
{"title":"Clinical Features and Survival Outcomes of Pediatric Meningioma Patients: An Integrative Analysis Based on the SEER Database.","authors":"Rui Zhang, Siyu Li, Yanming Ren, Qing Mao, Yuekang Zhang, Xiaodong Niu","doi":"10.1055/a-2846-3421","DOIUrl":"10.1055/a-2846-3421","url":null,"abstract":"<p><strong>Background: </strong>Pediatric meningiomas are extremely rare. The clinical features and prognosis of these patients remain unclear, especially due to the lack of large-scale clinical data.</p><p><strong>Methods: </strong>Pediatric and adult patients with meningiomas diagnosed between 2000 and 2021 were identified from the Surveillance, Epidemiology, and End Results (SEER) database. The clinical characteristics (age, sex, race, tumor laterality, tumor behavior, treatment methods, etc.) of the included patients were reviewed, and the survival analysis was estimated via the Kaplan‒Meier method.</p><p><strong>Results: </strong>A total of 364 pediatric patients were identified from the database. Pediatric meningiomas accounted for 0.2% to 0.6% of all meningiomas per year. The average age of pediatric patients was 12 years, and that of adult patients was 65 years. Adult meningioma patients were more commonly female, whereas no significant gender difference was observed in pediatric cases (<i>p</i> < 0.001). Moreover, a higher proportion of borderline and malignant tumors was found in pediatric meningioma patients compared with adults (<i>p</i> < 0.001). Survival analysis revealed that pediatric patients had a better survival prognosis than adult patients (<i>p</i> < 0.001). Pediatric patients with coexisting tumors had a worse prognosis than those without coexisting tumors (<i>p</i> < 0.001).</p><p><strong>Conclusion: </strong>This study comprehensively investigated the clinical features and survival outcomes of pediatric meningioma patients. Pediatric meningiomas are extremely uncommon and account for 0.2% to 0.6% of all meningiomas annually. Pediatric meningiomas have different clinical characteristics and better survival prognoses than those of adult patients.</p>","PeriodicalId":16544,"journal":{"name":"Journal of neurological surgery. Part A, Central European neurosurgery","volume":" ","pages":"338-345"},"PeriodicalIF":0.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147673878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Giant Cell Tumor of the Lumbar Spine with Large Retroperitoneal Extension and Vascular Attachment. 腰椎巨细胞瘤伴大腹膜后延伸及血管附着。
IF 0.9 4区 医学
Journal of neurological surgery. Part A, Central European neurosurgery Pub Date : 2026-08-01 Epub Date: 2026-06-26 DOI: 10.1055/a-2846-5029
Juan Felipe Abaunza-Camacho, Laura Michelle Forero-Santos, Esteban Ramírez-Ferrer, Andrés-Felipe Pineda-Martínez, William-Mauricio Riveros-Castillo, Javier M Saavedra, Jorge Torres-Mancera
{"title":"Giant Cell Tumor of the Lumbar Spine with Large Retroperitoneal Extension and Vascular Attachment.","authors":"Juan Felipe Abaunza-Camacho, Laura Michelle Forero-Santos, Esteban Ramírez-Ferrer, Andrés-Felipe Pineda-Martínez, William-Mauricio Riveros-Castillo, Javier M Saavedra, Jorge Torres-Mancera","doi":"10.1055/a-2846-5029","DOIUrl":"10.1055/a-2846-5029","url":null,"abstract":"<p><strong>Background: </strong>Giant cell tumors (GCTs) of the bone, though typically benign and found at the ends of long bones, are rare in the lumbar spine. Despite their benign nature, they can exhibit local aggressiveness and cause pathological fractures and compression. The treatment is individualized, considering anatomical localization, tumor extension, and clinical symptoms.</p><p><strong>Case report: </strong>We present the case of a 41-year-old female, a genuinely unique instance of a GCT of the L4 body extending into the retroperitoneum. This rarity in itself is a point of interest. The patient underwent an initial posterior en bloc resection with lumbar arthrodesis, followed by a second anterior L4 corpectomy and anterior cylinder fusion.</p><p><strong>Conclusion: </strong>The combination of radical surgery with adjuvant therapies such as radiotherapy and bisphosphonates has been described to enhance long-term outcomes and reduce recurrence. Still, surgery remains the mainstay of treatment of this entity.</p>","PeriodicalId":16544,"journal":{"name":"Journal of neurological surgery. Part A, Central European neurosurgery","volume":" ","pages":"382-386"},"PeriodicalIF":0.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148338914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RE: Patient-Specific Computed Tomography-Based Three-Dimensional Spine Trauma Models for Preoperative Planning in Virtual Reality and Three-Dimensional Printing. RE:基于患者特异性计算机层析成像的三维脊柱创伤模型在虚拟现实和三维打印中的术前规划。
IF 0.9 4区 医学
Journal of neurological surgery. Part A, Central European neurosurgery Pub Date : 2026-08-01 Epub Date: 2026-06-26 DOI: 10.1055/a-2846-8143
Hinpetch Daungsupawong, Viroj Wiwanitkit
{"title":"RE: Patient-Specific Computed Tomography-Based Three-Dimensional Spine Trauma Models for Preoperative Planning in Virtual Reality and Three-Dimensional Printing.","authors":"Hinpetch Daungsupawong, Viroj Wiwanitkit","doi":"10.1055/a-2846-8143","DOIUrl":"10.1055/a-2846-8143","url":null,"abstract":"","PeriodicalId":16544,"journal":{"name":"Journal of neurological surgery. Part A, Central European neurosurgery","volume":" ","pages":"397-398"},"PeriodicalIF":0.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148338925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deactivation of a Right-Sided Vagus Nerve Stimulator due to Cardiac Side Effects: Case Report. 心脏副作用导致右侧迷走神经刺激器失活:病例报告。
IF 0.9 4区 医学
Journal of neurological surgery. Part A, Central European neurosurgery Pub Date : 2026-08-01 Epub Date: 2026-06-16 DOI: 10.1055/a-2844-1254
Arthur R Kurzbuch, Laurie Bibby, Ben Cooper, Andrea McLaren, Naureen Keric, Volker Tronnier, Jonathan R Ellenbogen
{"title":"Deactivation of a Right-Sided Vagus Nerve Stimulator due to Cardiac Side Effects: Case Report.","authors":"Arthur R Kurzbuch, Laurie Bibby, Ben Cooper, Andrea McLaren, Naureen Keric, Volker Tronnier, Jonathan R Ellenbogen","doi":"10.1055/a-2844-1254","DOIUrl":"10.1055/a-2844-1254","url":null,"abstract":"<p><strong>Background: </strong>Stimulation of the left vagus nerve is a well-established therapy for patients with drug-resistant epilepsy who are not candidates for resective or disconnection surgery. Right-sided vagus nerve stimulation is generally avoided due to concerns about serious cardiac side effects, as the right vagus nerve is anatomically associated with the innervation of the sinoatrial node. Only a few cases of right-sided vagus nerve stimulation in drug-resistant epilepsy have been reported to date.</p><p><strong>Materials and methods: </strong>An 8-year-old child with drug-resistant epilepsy and a left-sided Port-a-Cath positioned in the left internal jugular vein underwent uneventful insertion of a right-sided vagus nerve stimulator device.</p><p><strong>Results: </strong>The vagus nerve stimulator was deactivated due to postoperative cardiac side effects, which subsequently resolved.</p><p><strong>Conclusion: </strong>We report the first case of a child with drug resistant epilepsy in whom a right-sided vagus nerve stimulator was deactivated due to postoperative cardiac effects. Nonetheless, right-sided implantation may be a viable therapeutic option when left-sided implantation is contraindicated, provided careful cardiac monitoring and individualized risk-benefit analysis are undertaken.</p>","PeriodicalId":16544,"journal":{"name":"Journal of neurological surgery. Part A, Central European neurosurgery","volume":" ","pages":"393-396"},"PeriodicalIF":0.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148264832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Angular-Laminar Access in Minimally Invasive Portal Surgery of the Lumbar Spine Improves Exposure and Surgical Operability. 腰椎微创门静脉手术的角-椎板入路改善暴露和手术可操作性。
IF 0.9 4区 医学
Journal of neurological surgery. Part A, Central European neurosurgery Pub Date : 2026-08-01 Epub Date: 2026-06-26 DOI: 10.1055/a-2794-9747
Filippo Gagliardi, Pierfrancesco De Domenico, Lucrezia Di Stefano, Marzia Medone, Silvia Snider, Pietro Mortini
{"title":"Angular-Laminar Access in Minimally Invasive Portal Surgery of the Lumbar Spine Improves Exposure and Surgical Operability.","authors":"Filippo Gagliardi, Pierfrancesco De Domenico, Lucrezia Di Stefano, Marzia Medone, Silvia Snider, Pietro Mortini","doi":"10.1055/a-2794-9747","DOIUrl":"10.1055/a-2794-9747","url":null,"abstract":"<p><strong>Background: </strong>The introduction of minimally invasive techniques in lumbar stenosis has had a significant impact in terms of reducing perioperative morbidity and the incidence of iatrogenic instability. According to the principle of keyhole surgery, minor variations in technique can result in significant variations in surgical outcomes.</p><p><strong>Aims: </strong>A comparative anatomical study was conducted to assess the impact of an innovative, more lateral entry point (angular-laminar access, ALA) on surgical maneuverability during minimally invasive circumferential microdecompression using a crossover technique.</p><p><strong>Methods: </strong>The anthropometric measurements were acquired on preoperative baseline CT images. A comparative study was conducted between the standard technique (marginal-laminar access, MLA) and the present one, applying the operability score (OS) principles. An illustrative case is reported to demonstrate the feasibility of the technique.</p><p><strong>Results: </strong>The ALA was found to increase maneuverability area (MA), maneuverability arc (MAC), and surgical angle of attack (SAA), reducing the conizing effect of the portal system, with a non-significant increase in the depth of the surgical field (D). The direction of the surgical corridor allows for better control over the contralateral recess, the increased range of motion (ROM) of the system optimizes visibility of potential blind corners.</p><p><strong>Conclusion: </strong>The ALA provides improved operability and surgical exposure in minimally invasive microdecompression using the crossover technique.</p>","PeriodicalId":16544,"journal":{"name":"Journal of neurological surgery. Part A, Central European neurosurgery","volume":" ","pages":"387-392"},"PeriodicalIF":0.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148338906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphological Analysis of the Intervertebral Foramen and Feasibility of Transforaminal Full-Endoscopic Spine Surgery. 椎间孔形态学分析及经椎间孔全内窥镜脊柱手术的可行性。
IF 0.8 4区 医学
Journal of neurological surgery. Part A, Central European neurosurgery Pub Date : 2026-07-01 Epub Date: 2026-03-31 DOI: 10.1055/a-2749-5771
Masahiro Kashima, Fumitake Tezuka, Naoyuki Yoshida, Takashi Chikawa, Shunji Nakano, Toru Maeda, Koichi Sairyo
{"title":"Morphological Analysis of the Intervertebral Foramen and Feasibility of Transforaminal Full-Endoscopic Spine Surgery.","authors":"Masahiro Kashima, Fumitake Tezuka, Naoyuki Yoshida, Takashi Chikawa, Shunji Nakano, Toru Maeda, Koichi Sairyo","doi":"10.1055/a-2749-5771","DOIUrl":"10.1055/a-2749-5771","url":null,"abstract":"<p><strong>Background: </strong>Transforaminal full-endoscopic spine surgery (TF-FESS) is a minimally invasive surgical procedure for lumbar spinal disease; however, it is technically demanding in patients with foraminal stenosis because of anatomical problems. This procedure has unique surgery-related complications, such as exiting nerve root injury, causing postoperative dysesthesia or muscle weakness, resulting in a poor clinical outcome. Therefore, we have to avoid this complication. The objective of this study was to analyze the morphology of the intervertebral foramen and assess the feasibility of TF-FESS.</p><p><strong>Materials and methods: </strong>We retrospectively reviewed the multiplanar abdominal computed tomography (CT) scans obtained for 800 consecutive patients (400 consecutive males, 400 consecutive females) at our hospitals between January 2016 and December 2018. Patients with lumbar scoliosis (Cobb angle >5 degrees), spondylolisthesis, or vertebral fracture, as well as those with a history of lumbar spinal surgery, were excluded. We evaluated the average values for disc height, position of the superior articular process (SAP), foraminal distance, foraminal area, and SAP facet contact from L1/L2 to L5/S1 on both sides in reconstructed sagittal views. A total of 8,000 intervertebral foramina were analyzed. The correlation between the disc height and these parameters was assessed at each spinal level.</p><p><strong>Results: </strong>At the L1/L2, L2/L3, L3/L4, L4/L5, and L5/S1 levels, the mean disc height was 5.4 mm, 6.4 mm, 7.1 mm, 7.1 mm, and 5.9 mm, respectively. The SAP position, as the distance above the line of the inferior margin of the upper vertebral body, decreased from L1/L2 to L3/L4 and increased from L3/L4 to L5/S1. The respective foraminal distances were the shortest at L4/L5. The foraminal area decreased toward the lower levels. The SAP facet contact was decreasing from L1/L2 to L4/L5. There was a negative correlation between the disc height and the SAP position, and positive correlations of disc height with the foraminal area and the SAP facet contact.</p><p><strong>Conclusions: </strong>The results of the SAP position, the foraminal distance, and the foraminal area suggest that TF-FESS would be technically more difficult at a lower intervertebral disc level because of resection of a larger amount of the SAP. Foraminal stenosis would develop easily when a disc has collapsed. About half of the facet contact could be maintained even if the SAP is resected completely during TF-FESS, especially at a lower lumbar level.</p>","PeriodicalId":16544,"journal":{"name":"Journal of neurological surgery. Part A, Central European neurosurgery","volume":" ","pages":"243-251"},"PeriodicalIF":0.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147592701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Management of Ruptured Intracranial Arachnoid Cysts with Hemorrhage: A Bayesian Network Analysis of Factors Affecting Management Decision. 颅内蛛网膜囊肿破裂出血的处理:影响处理决策因素的贝叶斯网络分析。
IF 0.8 4区 医学
Journal of neurological surgery. Part A, Central European neurosurgery Pub Date : 2026-07-01 Epub Date: 2025-11-18 DOI: 10.1055/a-2749-5915
Debajyoti Datta, Albert Tu
{"title":"Management of Ruptured Intracranial Arachnoid Cysts with Hemorrhage: A Bayesian Network Analysis of Factors Affecting Management Decision.","authors":"Debajyoti Datta, Albert Tu","doi":"10.1055/a-2749-5915","DOIUrl":"10.1055/a-2749-5915","url":null,"abstract":"<p><strong>Background and objective: </strong>Arachnoid cysts are extra-axial cerebrospinal fluid collections within the arachnoid membrane. Ruptured or hemorrhagic arachnoid cysts, although rare, present significant controversies in management. The present study is an attempt to analyze the factors contributing to management decision of ruptured/hemorrhagic arachnoid cysts using patient-level data from the literature.</p><p><strong>Methods: </strong>A literature search was conducted on PubMed and EMBASE to identify case reports and series of ruptured arachnoid cysts. Tree-augmented naïve Bayes (TAN) classifiers were implemented to analyze factors influencing surgical decision. The dataset was split into training and testing sets (0.75:0.25) and augmented using data augmentation techniques to address class imbalance. TAN classifiers were evaluated for accuracy and area under the curve, and a web application was developed to explore the networks.</p><p><strong>Results: </strong>The dataset included 254 unique cases after exclusion of missing data. Middle cranial fossa cysts accounted for 95% of cases, with a male predominance (M:F ratio 4.29:1). Management was predominantly surgical (89.8%), with craniotomy being the most common procedure. TAN classifiers for surgery and type of surgery were validated internally with accuracies of 90.48 and 75%, respectively. Cyst location, presence and type of hemorrhage, patient age group, Galassi classification were key influencing variables. The choice of surgical modality was influenced by additional variables like head injury, seizure, and macrocrania.</p><p><strong>Conclusion: </strong>TAN models highlighted the interrelated factors influencing management decision but do not propose definitive strategies. The generalizability of the findings are limited by heterogenous data, imbalance of various management strategies, particularly conservative management, and evolution of surgical techniques over time. The complexity of decision-making underscores the need for multicenter registries to improve data quality and to formulate optimal management strategy.</p>","PeriodicalId":16544,"journal":{"name":"Journal of neurological surgery. Part A, Central European neurosurgery","volume":" ","pages":"252-258"},"PeriodicalIF":0.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145549634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Accuracy of Magnetic Resonance Imaging-Based Vertebral and Endplate Bone Quality in Predicting Cage Subsidence in Anterior Cervical Spine Surgery: A Systematic Review and Meta-Analysis. 基于mri的椎体和终板骨质量在预测颈椎前路手术Cage下沉中的准确性:一项系统综述和荟萃分析。
IF 0.9 4区 医学
Journal of neurological surgery. Part A, Central European neurosurgery Pub Date : 2026-07-01 Epub Date: 2026-01-21 DOI: 10.1055/a-2793-1168
Alexander Erick Purnomo, Aldi Nanda Kurniawan, Yang Yang Endro Arjuna, Jephtah Furano Lumban Tobing, Hendra Tjong
{"title":"Accuracy of Magnetic Resonance Imaging-Based Vertebral and Endplate Bone Quality in Predicting Cage Subsidence in Anterior Cervical Spine Surgery: A Systematic Review and Meta-Analysis.","authors":"Alexander Erick Purnomo, Aldi Nanda Kurniawan, Yang Yang Endro Arjuna, Jephtah Furano Lumban Tobing, Hendra Tjong","doi":"10.1055/a-2793-1168","DOIUrl":"10.1055/a-2793-1168","url":null,"abstract":"<p><strong>Introduction: </strong>Conventional radiographs and bone mineral density are commonly used to predict cage subsidence, though their accuracy can be limited by several factors. Magnetic resonance imaging (MRI)-based measurement of vertebral bone quality (VBQ) and endplate bone quality (EBQ) offer a more detailed assessment of bone quality and subsidence risk. This study aims to evaluate the accuracy of MRI-based VBQ and EBQ in predicting cage subsidence in anterior cervical spine surgery patients.</p><p><strong>Methods: </strong>A comprehensive search was conducted across databases including PubMed, Europe PMC, ScienceDirect, and Google Scholar using keywords such as \"Magnetic Resonance Imaging,\" \"MRI,\" \"Vertebral Bone Quality,\" \"Endplate Bone Quality,\" \"Cage Subsidence,\" \"Anterior Cervical Spine Surgery,\" \"ACDF,\" \"ACCF,\" combined with Boolean operators \"AND\" and \"OR\" up to November 2024. The risk of bias was assessed using Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2), with the primary outcome focusing on VBQ and EBQ values, and secondary outcomes examining the area under the curve (AUC), sensitivity, and specificity of VBQ and EBQ.</p><p><strong>Results: </strong>Nine retrospective cohort studies involving 911 patients were included. Pooled analysis showed that high VBQ and EBQ scores were significantly associated with increased subsidence risk (odds ratio [OR]: 2.63, 95% confidence interval [CI]: 1.51-4.60, <i>p</i> = 0.0007). Pooled sensitivity and specificity for VBQ were 78.9% (95% CI: 72.5-85.3%) and 85.7% (95% CI: 82.2-93.1%), respectively, with an AUC of 0.865. EBQ demonstrated pooled sensitivity of 81.8% and specificity of 88.7%, with an AUC of 0.890. The cutoff values for VBQ and EBQ ranged from 2.68 to 3.445 and 1.973 to 4.7, respectively.</p><p><strong>Conclusions: </strong>MRI-based VBQ and EBQ scores demonstrate strong diagnostic accuracy for predicting cage subsidence in anterior cervical spine surgery. These scores could aid in preoperative risk assessment, though further research should aim to standardize MRI protocols and validate cutoff values across diverse populations.</p>","PeriodicalId":16544,"journal":{"name":"Journal of neurological surgery. Part A, Central European neurosurgery","volume":" ","pages":"273-286"},"PeriodicalIF":0.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146018886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Robotic-Assisted C2 Laminar Screw Placement: Initial Experience and Accuracy Evaluation. 机器人辅助C2椎板螺钉置入:初步经验和精度评估。
IF 0.8 4区 医学
Journal of neurological surgery. Part A, Central European neurosurgery Pub Date : 2026-07-01 Epub Date: 2026-03-25 DOI: 10.1055/a-2840-7567
Yuki Yamamoto, Takashi Fujishiro, Fumiya Adachi, Takuya Obo, Sachio Hayama, Masashi Neo, Shuhei Otsuki
{"title":"Robotic-Assisted C2 Laminar Screw Placement: Initial Experience and Accuracy Evaluation.","authors":"Yuki Yamamoto, Takashi Fujishiro, Fumiya Adachi, Takuya Obo, Sachio Hayama, Masashi Neo, Shuhei Otsuki","doi":"10.1055/a-2840-7567","DOIUrl":"10.1055/a-2840-7567","url":null,"abstract":"<p><strong>Background: </strong>The anchor at C2 often serves as a key stabilizer in cervical spine fusion surgery. Although the pedicle screw is considered the standard fixation method at C2, the laminar screw is also a widely used alternative due to its biomechanical stability, comparable to that of C2 PS. However, malpositioning of C2 LS carries a risk of neural injury and compromised fixation stability, and the use of surgical assistance has been reported to improve placement accuracy. The robotic system is a relatively new technology for PS placement, and its application has recently expanded to the cervical spine. The present study aimed to investigate the accuracy of C2 laminar screw placement with robot assistance.</p><p><strong>Methods: </strong>This prospective study evaluated 11 C2 laminar screws in 11 patients who underwent cervical fusion surgery with the robot assistance between March 2024 and June 2025.</p><p><strong>Results: </strong>All 11 C2 laminar screws were successfully placed with no cortical breaches and no screw-related complications. The mean deviations at both the entry point and at a depth of 20 mm were less than 1.0 mm in both the axial and sagittal planes.</p><p><strong>Conclusions: </strong>The results of this study suggest that the robotic system is a potential tool to facilitate accurate C2 laminar screw placement in clinical settings.</p>","PeriodicalId":16544,"journal":{"name":"Journal of neurological surgery. Part A, Central European neurosurgery","volume":" ","pages":"287-293"},"PeriodicalIF":0.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147512972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Role of A1 Variations on the Outcomes of Anterior Communicating Artery Aneurysm Treatment. A1变异在前交通动脉瘤治疗结果中的作用。
IF 0.8 4区 医学
Journal of neurological surgery. Part A, Central European neurosurgery Pub Date : 2026-07-01 Epub Date: 2026-01-16 DOI: 10.1055/a-2790-5115
Feryal Bastaci, Erhan Çelikoğlu, Tayfun Hakan, Jülide Hazneci, Volga Ulaş Ercan, Yılmaz Önal
{"title":"The Role of A1 Variations on the Outcomes of Anterior Communicating Artery Aneurysm Treatment.","authors":"Feryal Bastaci, Erhan Çelikoğlu, Tayfun Hakan, Jülide Hazneci, Volga Ulaş Ercan, Yılmaz Önal","doi":"10.1055/a-2790-5115","DOIUrl":"10.1055/a-2790-5115","url":null,"abstract":"<p><strong>Background: </strong>Anterior communicating artery (ACoA) aneurysms are common and complex. This study investigated the effect of A1 artery variations (hypoplasia/aplasia) on treatment outcomes.</p><p><strong>Methods: </strong>We retrospectively reviewed 104 patients with ACoA aneurysms treated either microsurgically or endovascularly.</p><p><strong>Results: </strong>Ruptured aneurysms were present in 58.7% of patients. A1 variations occurred in 45.2% of cases, more frequently in unruptured aneurysms (69.8%, <i>p</i> < 0.01). The neck width of ruptured aneurysms was significantly smaller than that of unruptured ones. Variations reduced the risk of rupture (odds ratio = 0.16, 95% confidence interval = 0.06-0.41; <i>p</i> = 0.001). Microsurgery was the primary treatment (74%), and the rate of A1 variations was significantly lower in these cases (<i>p</i> < 0.05). Second interventions were required in 11.5% of patients, with no significant association to variation or treatment type. Vasospasm occurred in 41% of the ruptured aneurysm cases. Functional outcomes (modified Rankin Scale) were better in patients with A1 variations (<i>p</i> < 0.05). Mortality was 11.5% and unrelated to A1 variation. A higher bottleneck ratio increased mortality risk, whereas a higher height/width ratio decreased it.</p><p><strong>Conclusion: </strong>A1 variations were more common in unruptured ACoA aneurysms. They did not significantly influence retreatment or mortality. These findings may guide management strategies as the detection of unruptured aneurysms increases.</p>","PeriodicalId":16544,"journal":{"name":"Journal of neurological surgery. Part A, Central European neurosurgery","volume":" ","pages":"259-267"},"PeriodicalIF":0.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145989603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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