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Journal of Neurosurgery. Spine

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https://www.readbyqxmd.com/read/28644075/spine-stereotactic-radiosurgery-for-metastatic-sarcoma-patterns-of-failure-and-radiation-treatment-volume-considerations
#1
Andrew J Bishop, Randa Tao, B Ashleigh Guadagnolo, Pamela K Allen, Neal C Rebueno, Xin A Wang, Behrang Amini, Claudio E Tatsui, Laurence D Rhines, Jing Li, Eric L Chang, Paul D Brown, Amol J Ghia
OBJECTIVE Given the relatively lower radiosensitivity of sarcomas and the locally infiltrative patterns of spread, the authors sought to investigate spine stereotactic radiosurgery (SSRS) outcomes for metastatic sarcomas and to analyze patterns of failure. METHODS The records of 48 patients with 66 sarcoma spinal metastases consecutively treated with SSRS between 2002 and 2013 were reviewed. The Kaplan-Meier method was used to estimate rates of overall survival (OS) and local control (LC). Local recurrences were categorized as occurring infield (within the 95% isodose line [IDL]), marginally (between the 20% and 95% IDLs), or out of field...
June 23, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28644069/concomitant-idiopathic-hypertrophic-spinal-pachymeningitis-and-guillain-barr%C3%A3-syndrome-in-a-patient-coincidence-or-a-triggering-mechanism
#2
Farouk Olubajo, Tatyana Yermakova, J Robin Highley, Vasileios Arzoglou
Idiopathic hypertrophic spinal pachymeningitis (IHSP), a rare diffuse inflammatory thickening of the dura mater, and Guillain-Barré syndrome (GBS) are known entities but they have never been reported as concomitant diagnoses. To their knowledge, the authors present the first reported case in the international literature with supportive evidence for both IHSP (based on MRI, intraoperative, and histological findings) and GBS (based on history, clinical examination, and electrophysiological findings). They review the literature on IHSP and the diagnostic criteria for GBS, with the view of identifying a possible causative connection...
June 23, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28621617/intrathoracic-meningocele-associated-with-neurofibromatosis-type-1-and-a-novel-technique-for-surgical-repair-case-report
#3
Paramita Das, Tarini Goyal, Matthew A Hunt
Neurofibromatosis Type 1 (NF1) is a neurocutaneous disorder that can have associated spinal abnormalities related to both bone and dural dysplasia. Thoracic meningoceles are one spine anomaly associated with NF1, although they are a fairly uncommon pathology. Surgical techniques to treat these meningoceles, usually undertaken only when the patient is symptomatic, are targeted at decreasing the size of the protrusion and improving lung capacity. Surgical interventions discussed in the literature include shunting the pseudomeningocele, primary repair with laminectomy, thoracoscopic plication, and reinforcement of the closure with cement, muscle, or fascia...
June 16, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28621616/prevalence-of-foramen-arcuale-and-its-clinical-significance-a-meta-analysis-of-55-985-subjects
#4
Przemysław A Pękala, Brandon M Henry, Jakub R Pękala, Wan Chin Hsieh, Jens Vikse, Beatrice Sanna, Jerzy A Walocha, R Shane Tubbs, Krzysztof A Tomaszewski
OBJECTIVE The foramen arcuale (FA) is a bony bridge located over the vertebral artery on the posterior arch of the atlas. The presence of an FA can pose a risk during neurosurgery by providing a false impression of a broader posterior arch. The aim of this study was to provide the most comprehensive investigation on the prevalence of the FA and its clinically important anatomical features. METHODS Major electronic databases were searched to identify all studies that reported relevant data on the FA and the data were pooled into a meta-analysis...
June 16, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28598296/letter-to-the-editor-endovascular-and-surgical-management-of-spinal-dural-arteriovenous-fistulas
#5
Ravi Sharma, Manoj Phalak, Shashank S Kale
No abstract text is available yet for this article.
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28598295/pelvic-retroversion-a-compensatory-mechanism-for-lumbar-stenosis
#6
Sina Pourtaheri, Akshay Sharma, Jason Savage, Iain Kalfas, Thomas E Mroz, Edward Benzel, Michael P Steinmetz
OBJECTIVE The flexed posture of the proximal (L1-3) or distal (L4-S1) lumbar spine increases the diameter of the spinal canal and neuroforamina and can relieve symptoms of neurogenic claudication. Distal lumbar flexion can result in pelvic retroversion; therefore, in cases of flexible sagittal imbalance, pelvic retroversion may be compensatory for lumbar stenosis and not solely compensatory for the sagittal imbalance as previously thought. The authors investigate underlying causes for pelvic retroversion in patients with flexible sagittal imbalance...
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28598294/open-versus-percutaneous-instrumentation-in-thoracolumbar-fractures-magnetic-resonance-imaging-comparison-of-paravertebral-muscles-after-implant-removal
#7
Yves Ntilikina, David Bahlau, Julien Garnon, Sébastien Schuller, Axel Walter, Mickaël Schaeffer, Jean-Paul Steib, Yann Philippe Charles
OBJECTIVE Percutaneous instrumentation in thoracolumbar fractures is intended to decrease paravertebral muscle damage by avoiding dissection. The aim of this study was to compare muscles at instrumented levels in patients who were treated by open or percutaneous surgery. METHODS Twenty-seven patients underwent open instrumentation, and 65 were treated percutaneously. A standardized MRI protocol using axial T1-weighted sequences was performed at a minimum 1-year follow-up after implant removal. Two independent observers measured cross-sectional areas (CSAs, in cm(2)) and region of interest (ROI) signal intensity (in pixels) of paravertebral muscles by using OsiriX at the fracture level, and at cranial and caudal instrumented pedicle levels...
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28598293/stereotactic-body-radiotherapy-for-de-novo-spinal-metastases-systematic-review
#8
Zain A Husain, Arjun Sahgal, Antonio De Salles, Melissa Funaro, Janis Glover, Motohiro Hayashi, Masahiro Hiraoka, Marc Levivier, Lijun Ma, Roberto Martínez-Alvarez, J Ian Paddick, Jean Régis, Ben J Slotman, Samuel Ryu
OBJECTIVE The aim of this systematic review was to provide an objective summary of the published literature pertaining to the use of stereotactic body radiation therapy (SBRT) specific to previously untreated spinal metastases. METHODS The authors performed a systematic review, using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, of the literature found in a search of Medline, PubMed, Embase, and the Cochrane Library up to March 2015. The search strategy was limited to publications in the English language...
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28598292/effects-of-primary-and-recurrent-sacral-chordoma-on-the-motor-and-nociceptive-function-of-hindlimbs-in-rats-an-orthotopic-spine-model
#9
Rachel Sarabia-Estrada, Alejandro Ruiz-Valls, Sagar R Shah, A Karim Ahmed, Alvaro A Ordonez, Fausto J Rodriguez, Hugo Guerrero-Cazares, Ismael Jimenez-Estrada, Esteban Velarde, Betty Tyler, Yuxin Li, Neil A Phillips, C Rory Goodwin, Rory J Petteys, Sanjay K Jain, Gary L Gallia, Ziya L Gokaslan, Alfredo Quinones-Hinojosa, Daniel M Sciubba
OBJECTIVE Chordoma is a slow-growing, locally aggressive cancer that is minimally responsive to conventional chemotherapy and radiotherapy and has high local recurrence rates after resection. Currently, there are no rodent models of spinal chordoma. In the present study, the authors sought to develop and characterize an orthotopic model of human chordoma in an immunocompromised rat. METHODS Thirty-four immunocompromised rats were randomly allocated to 4 study groups; 22 of the 34 rats were engrafted in the lumbar spine with human chordoma...
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28598291/spinal-navigation-for-posterior-instrumentation-of-c1-2-instability-using-a-mobile-intraoperative-ct-scanner
#10
Marcus Czabanka, Julien Haemmerli, Nils Hecht, Bettina Foehre, Klaus Arden, Thomas Liebig, Johannes Woitzik, Peter Vajkoczy
OBJECTIVE Spinal navigation techniques for surgical fixation of unstable C1-2 pathologies are challenged by complex osseous and neurovascular anatomy, instability of the pathology, and unreliable preoperative registration techniques. An intraoperative CT scanner with autoregistration of C-1 and C-2 promises sufficient accuracy of spinal navigation without the need for further registration procedures. The aim of this study was to analyze the accuracy and reliability of posterior C1-2 fixation using intraoperative mobile CT scanner-guided navigation...
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28574334/modified-dorsal-root-entry-zone-lesioning-for-intractable-pain-relief-in-patients-with-root-avulsion-injury
#11
Keisuke Takai, Makoto Taniguchi
OBJECTIVE Dorsal root entry zone (DREZ) lesioning has been the most effective surgical treatment for the relief of intractable pain due to root avulsion injury, but residual pain and a decrease in pain relief in the follow-up period have been reported in 23%-70% of patients. Based on pain topography in the most recent studies on neuropathic pain, the authors modified the conventional DREZ lesioning procedure to improve clinical outcomes. The presumed rationale for this procedure is to eliminate the spontaneous discharges of neurons in the superficial spinal dorsal horn as well as wide dynamic range neurons in the deep spinal dorsal horn...
June 2, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28574333/depression-as-an-independent-predictor-of-postoperative-delirium-in-spine-deformity-patients-undergoing-elective-spine-surgery
#12
Aladine A Elsamadicy, Owoicho Adogwa, Emily Lydon, Amanda Sergesketter, Rayan Kaakati, Ankit I Mehta, Raul A Vasquez, Joseph Cheng, Carlos A Bagley, Isaac O Karikari
OBJECTIVE Depression is the most prevalent affective disorder in the US, and patients with spinal deformity are at increased risk. Postoperative delirium has been associated with inferior surgical outcomes, including morbidity and mortality. The relationship between depression and postoperative delirium in patients undergoing spine surgery is relatively unknown. The aim of this study was to determine if depression is an independent risk factor for the development of postoperative delirium in patients undergoing decompression and fusion for deformity...
June 2, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28574332/incidence-and-risk-factors-for-preoperative-deep-venous-thrombosis-in-314-consecutive-patients-undergoing-surgery-for-spinal-metastasis
#13
Brad E Zacharia, Sweena Kahn, Evan D Bander, Gustav Y Cederquist, William P Cope, Lily McLaughlin, Alexa Hijazi, Anne S Reiner, Ilya Laufer, Mark Bilsky
OBJECTIVE The authors of this study aimed to identify the incidence of and risk factors for preoperative deep venous thrombosis (DVT) in patients undergoing surgical treatment for spinal metastases. METHODS Univariate analysis of patient age, sex, ethnicity, laboratory values, comorbidities, preoperative ambulatory status, histopathological classification, spinal level, and surgical details was performed. Factors significantly associated with DVT univariately were entered into a multivariate logistic regression model...
June 2, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28574331/risk-factors-for-30-day-reoperation-and-3-month-readmission-analysis-from-the-quality-and-outcomes-database-lumbar-spine-registry
#14
Rishi K Wadhwa, Junichi Ohya, Todd D Vogel, Leah Y Carreon, Anthony L Asher, John J Knightly, Christopher I Shaffrey, Steven D Glassman, Praveen V Mummaneni
OBJECTIVE The aim of this paper was to use a prospective, longitudinal, multicenter outcome registry of patients undergoing surgery for lumbar degenerative disease in order to assess the incidence and factors associated with 30-day reoperation and 90-day readmission. METHODS Prospectively collected data from 9853 patients from the Quality and Outcomes Database (QOD; formerly known as the N(2)QOD [National Neurosurgery Quality and Outcomes Database]) lumbar spine registry were retrospectively analyzed. Multivariate binomial regression analysis was performed to identify factors associated with 30-day reoperation and 90-day readmission after surgery for lumbar degenerative disease...
June 2, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28574330/role-of-intraoperative-dynamic-magnetic-resonance-myelogram-in-management-of-giant-dorsolumbar-spinal-extradural-arachnoid-cyst-case-report
#15
Rakesh Kumar Mishra, Nupur Pruthi, Rose Dawn Bharath, Bhaskara Rao Malla
Giant dorsolumbar spinal arachnoid cysts are a complex, poorly understood, and difficult to manage clinical entity. Traditional CT myelography is technically difficult to use in these cases to detect the site of leakage preoperatively. The authors report a novel technique for detecting the site of the leak by using sequential, dynamic intraoperative MR myelography. To the authors' knowledge, there is no other similar report in the literature.
June 2, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28574329/spinal-epidural-hematomas-personal-experience-and-literature-review-of-more-than-1000-cases
#16
Maurizio Domenicucci, Cristina Mancarella, Giorgio Santoro, Demo Eugenio Dugoni, Alessandro Ramieri, Maria Felice Arezzo, Paolo Missori
OBJECTIVE The goal of this study was to identify factors that contribute to the formation of acute spinal epidural hematoma (SEH) by correlating etiology, age, site, clinical status, and treatment with immediate results and long-term outcomes. METHODS The authors reviewed their series of 15 patients who had been treated for SEH between 1996 and 2012. In addition, the authors reviewed the relevant international literature from 1869 (when SEH was first described) to 2012, collecting a total of 1010 cases. Statistical analysis was performed in 959 (95%) cases that were considered valid for assessing the incidence of age, sex, site, and clinical status at admission, correlating each of these parameters with the treatment results...
June 2, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28574328/cerebrospinal-fluid-outflow-resistance-as-a-diagnostic-marker-of-spontaneous-cerebrospinal-fluid-leakage
#17
Jürgen Beck, Christian Fung, Christian T Ulrich, Michael Fiechter, Jens Fichtner, Heinrich P Mattle, Marie-Luise Mono, Niklaus Meier, Pasquale Mordasini, Werner J Z'Graggen, Jan Gralla, Andreas Raabe
OBJECTIVE Spinal CSF leakage causes spontaneous intracranial hypotension (SIH). The aim of this study was to characterize CSF dynamics via lumbar infusion testing in patients with and without proven spinal CSF leakage in order to explore possible discriminators for the presence of an open CSF leak. METHODS This analysis included all patients with suspected SIH who were treated at the authors' institution between January 2012 and February 2015. The gold standard for "proven" CSF leakage is considered to be extrathecal contrast accumulation after intrathecal contrast injection...
June 2, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28548635/letter-to-the-editor-lumbar-muscle-strength-changes-after-fusion-only-due-to-rehabilitation-exercises
#18
Derek T Cawley
No abstract text is available yet for this article.
May 26, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28548634/predictors-of-permanent-disability-among-adults-with-spinal-dysraphism
#19
Matthew C Davis, Betsy D Hopson, Jeffrey P Blount, Rachel Carroll, Tracey S Wilson, Danielle K Powell, Amie B Jackson McLain, Brandon G Rocque
OBJECTIVE Predictors of permanent disability among individuals with spinal dysraphism are not well established. In this study, the authors examined potential risk factors for self-reported permanent disability among adults with spinal dysraphism. METHODS A total of 188 consecutive individuals undergoing follow-up in an adult spinal dysraphism clinic completed a standardized National Spina Bifida Patient Registry survey. Chi-square tests and logistic regression were used to assess bivariate relationships, while multivariate logistic regression was used to identify factors independently associated with self-identification as "permanently disabled...
May 26, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28524753/continuous-mapping-of-the-corticospinal-tracts-in-intramedullary-spinal-cord-tumor-surgery-using-an-electrified-ultrasonic-aspirator
#20
Ori Barzilai, Zvi Lidar, Shlomi Constantini, Khalil Salame, Yifat Bitan-Talmor, Akiva Korn
Intramedullary spinal cord tumors (IMSCTs) represent a rare entity, accounting for 4%-10% of all central nervous system tumors. Microsurgical resection of IMSCTs is currently considered the primary treatment modality. Intraoperative neurophysiological monitoring (IONM) has been shown to aid in maximizing tumor resection and minimizing neurological morbidity, consequently improving patient outcome. The gold standard for IONM to date is multimodality monitoring, consisting of both somatosensory evoked potentials, as well as muscle-based transcranial electric motor evoked potentials (tcMEPs)...
May 19, 2017: Journal of Neurosurgery. Spine
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