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Journal of Neurosurgery. Spine

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https://www.readbyqxmd.com/read/28524753/continuous-mapping-of-the-corticospinal-tracts-in-intramedullary-spinal-cord-tumor-surgery-using-an-electrified-ultrasonic-aspirator
#1
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
https://www.readbyqxmd.com/read/28524752/widening-of-the-safe-trajectory-range-during-subaxial-cervical-pedicle-screw-placement-advantages-of-a-curved-pedicle-probe-and-laterally-located-starting-point-without-creating-a-funnel-shaped-hole
#2
Subum Lee, Junghan Seo, Moon Kyu Lee, Sang Ryong Jeon, Sung Woo Roh, Seung Chul Rhim, Jin Hoon Park
OBJECTIVE The small diameter of cervical pedicles and a large transverse cervical pedicle angle are challenges that have led spinal surgeons to investigate how they could achieve a wider safety trajectory and reduce the insertion angle during cervical pedicle screw (CPS) placement. In this paper, the authors detail the advantages of using a curved pedicle probe and a laterally located entry point for overcoming these challenges. METHODS From March 2012 to May 2016, the authors performed posterior cervical fusions using CPSs on 119 consecutive patients...
May 19, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28524751/pseudogout-of-the-cervical-and-thoracic-spine-mimicking-infection-after-lumbar-fusion-case-report
#3
Kelly J Bridges, Carli L Bullis, Ajay Wanchu, Khoi D Than
Pseudogout is a form of acute calcium pyrophosphate deposition (CPPD) disease that typically afflicts the elderly. CPPD commonly involves larger joints, such as the knees, wrists, shoulders, and hips, and has been known to involve the spine. The authors report the case of a 66-year-old woman with a recent history of lumbar laminectomy and fusion who presented 5 weeks postprocedure with a clinical and radiographic picture consistent with multilevel skip lesions involving the cervical and thoracic spine, thoracic discitis, and epidural abscess...
May 19, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28524750/backstabbing-swordfish-a-rare-cause-of-traumatic-hemiparesis
#4
Prabu Rau Sriram, Timothy Cheng Tsin Jien, Pulivendhan Sellamuthu
Swordfish attacks on humans are uncommon, with only a few case reports available in the current literature. The authors report the first known case of a penetrating spinal injury from a swordfish, in which the patient presented with a small stab wound and hemiparesis. The presentation of a fisherman with hemiparesis and a harmless-looking stab wound must alert clinicians to the possibility of penetrating swordfish injuries to the spine.
May 19, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28498074/an-analysis-from-the-quality-outcomes-database-part-1-disability-quality-of-life-and-pain-outcomes-following-lumbar-spine-surgery-predicting-likely-individual-patient-outcomes-for-shared-decision-making
#5
Matthew J McGirt, Mohamad Bydon, Kristin R Archer, Clinton J Devin, Silky Chotai, Scott L Parker, Hui Nian, Frank E Harrell, Theodore Speroff, Robert S Dittus, Sharon E Philips, Christopher I Shaffrey, Kevin T Foley, Anthony L Asher
OBJECTIVE Quality and outcomes registry platforms lie at the center of many emerging evidence-driven reform models. Specifically, clinical registry data are progressively informing health care decision-making. In this analysis, the authors used data from a national prospective outcomes registry (the Quality Outcomes Database) to develop a predictive model for 12-month postoperative pain, disability, and quality of life (QOL) in patients undergoing elective lumbar spine surgery. METHODS Included in this analysis were 7618 patients who had completed 12 months of follow-up...
May 12, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28498073/does-the-mesodermal-derangement-in-chiari-type-i-malformation-extend-to-the-cervical-spine-evidence-from-an-analytical-morphometric-study-on-cervical-paraspinal-muscles
#6
Sumit Thakar, Avinash Kurudi Siddappa, Saritha Aryan, Dilip Mohan, Narayanam Anantha Sai Kiran, Alangar S Hegde
OBJECTIVE The mesodermal derangement in Chiari Type I malformation (CMI) has been postulated to encompass the cervical spine. The objectives of this study were to assess the cross-sectional areas (CSAs) of cervical paraspinal muscles (PSMs) in patients with CMI without syringomyelia, compare them with those in non-CMI subjects, and evaluate their correlations with various factors. METHODS In this retrospective study, the CSAs of cervical PSMs in 25 patients were calculated on T2-weighted axial MR images and computed as ratios with respect to the corresponding vertebral body areas...
May 12, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28498072/paravertebral-foramen-screw-fixation-for-posterior-cervical-spine-fusion-biomechanical-study-and-description-of-a-novel-technique
#7
Satoshi Maki, Masaaki Aramomi, Yusuke Matsuura, Takeo Furuya, Mitsutoshi Ota, Yasushi Iijima, Junya Saito, Takane Suzuki, Chikato Mannoji, Kazuhisa Takahashi, Masashi Yamazaki, Masao Koda
OBJECTIVE Fusion surgery with instrumentation is a widely accepted treatment for cervical spine pathologies. The authors propose a novel technique for subaxial cervical fusion surgery using paravertebral foramen screws (PVFS). The authors consider that PVFS have equal or greater biomechanical strength than lateral mass screws (LMS). The authors' goals of this study were to conduct a biomechanical study of PVFS, to investigate the suitability of PVFS as salvage fixation for failed LMS, and to describe this novel technique...
May 12, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28498071/assessment-of-malpractice-claims-due-to-spinal-epidural-abscess
#8
J Mason DePasse, Roy Ruttiman, Adam E M Eltorai, Mark A Palumbo, Alan H Daniels
OBJECTIVE Spinal epidural abscesses (SEAs) can be difficult to diagnose and may result in neurological compromise or even death. Delays in diagnosis or treatment may worsen the prognosis. While SEA presents a high risk for litigation, little is known about the medicolegal ramifications of this condition. An enhanced understanding of potential legal implications is important for practicing spine surgeons, emergency medicine physicians, and internists. METHODS The VerdictSearch database, a large legal-claims database, was queried for "epidural abscess"-related legal cases...
May 12, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28498070/extracranial-internal-carotid-artery-dissection-caused-by-compression-from-a-giant-osteophyte-due-to-atlantoaxial-osteoarthritis-case-report
#9
Taichi Ikedo, Kazuhito Nakamura, Noritaka Sano, Manabu Nagata, Yumiko Okada, Taichiro Kawakami, Takaho Murata
Deformed osseous structures have been reported as rare causes of extracranial internal carotid artery (ICA) dissection, including the styloid process and the hyoid bone. Here, the authors describe the first known case of symptomatic ICA dissection caused by a giant osteophyte due to atlantoaxial osteoarthritis. The left ICA was fixed at the skull base and at the ICA portion compressed by the osteophyte, and it was highly stretched and injured between the two portions during neck rotation. The patient was successfully treated with ligation of the affected ICA following balloon test occlusion...
May 12, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28498069/an-analysis-from-the-quality-outcomes-database-part-2-predictive-model-for-return-to-work-after-elective-surgery-for-lumbar-degenerative-disease
#10
Anthony L Asher, Clinton J Devin, Kristin R Archer, Silky Chotai, Scott L Parker, Mohamad Bydon, Hui Nian, Frank E Harrell, Theodore Speroff, Robert S Dittus, Sharon E Philips, Christopher I Shaffrey, Kevin T Foley, Matthew J McGirt
OBJECTIVE Current costs associated with spine care are unsustainable. Productivity loss and time away from work for patients who were once gainfully employed contributes greatly to the financial burden experienced by individuals and, more broadly, society. Therefore, it is vital to identify the factors associated with return to work (RTW) after lumbar spine surgery. In this analysis, the authors used data from a national prospective outcomes registry to create a predictive model of patients' ability to RTW after undergoing lumbar spine surgery for degenerative spine disease...
May 12, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28498068/predictors-of-extended-length-of-stay-discharge-to-inpatient-rehab-and-hospital-readmission-following-elective-lumbar-spine-surgery-introduction-of-the-carolina-semmes-grading-scale
#11
Matthew J McGirt, Scott L Parker, Silky Chotai, Deborah Pfortmiller, Jeffrey M Sorenson, Kevin Foley, Anthony L Asher
OBJECTIVE Extended hospital length of stay (LOS), unplanned hospital readmission, and need for inpatient rehabilitation after elective spine surgery contribute significantly to the variation in surgical health care costs. As novel payment models shift the risk of cost overruns from payers to providers, understanding patient-level risk of LOS, readmission, and inpatient rehabilitation is critical. The authors set out to develop a grading scale that effectively stratifies risk of these costly events after elective surgery for degenerative lumbar pathologies...
May 12, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28475021/individualized-3d-printed-model-assisted-posterior-screw-fixation-for-the-treatment-of-craniovertebral-junction-abnormality-a-retrospective-study
#12
Fangyou Gao, Qu Wang, Chuangxi Liu, Bing Xiong, Tao Luo
OBJECTIVE This study was undertaken to evaluate the feasibility and efficacy of individualized 3D printed model-assisted posterior internal fixation in treating craniovertebral junction (CVJ) abnormalities. METHODS Forty-four patients (19 males and 25 females; mean age 36.5 ± 9.2 years, range 11-62 years; symptom duration 1 month-15 years) with a CVJ abnormality who were admitted to the authors' institution between April 2010 and April 2015 were retrospectively studied. The individualized 3D printed model of the CVJ was produced based on the individual CT data by use of 3D printing technology...
May 5, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28475020/anterior-cage-dislodgement-in-posterior-lumbar-interbody-fusion-a-review-of-12-patients
#13
Shuhei Murase, Yasushi Oshima, Yujiro Takeshita, Kota Miyoshi, Kazuhito Soma, Naohiro Kawamura, Junichi Kunogi, Takashi Yamazaki, Dai Ariyoshi, Shigeo Sano, Hirohiko Inanami, Katsushi Takeshita, Sakae Tanaka
OBJECTIVE Interbody fusion cages are widely used to achieve initial fixation and secure spinal fusion; however, there are certain technique-related complications. Although anterior cage dislodgement can cause major vascular injury, the incidence is extremely rare. Here, the authors performed a review of anterior cage dislodgement following posterior lumbar interbody fusion (PLIF) surgery. METHODS The authors retrospectively reviewed the cases of 4625 patients who had undergone PLIF at 6 institutions between December 2007 and March 2015...
May 5, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28475019/retrospective-analysis-underestimates-neurological-deficits-in-complex-spinal-deformity-surgery-a-scoli-risk-1-study
#14
Michael P Kelly, Lawrence G Lenke, Jakub Godzik, Ferran Pellise, Christopher I Shaffrey, Justin S Smith, Stephen J Lewis, Christopher P Ames, Leah Y Carreon, Michael G Fehlings, Frank Schwab, Adam L Shimer
OBJECTIVE The authors conducted a study to compare neurological deficit rates associated with complex adult spinal deformity (ASD) surgery when recorded in retrospective and prospective studies. Retrospective studies may underreport neurological deficits due to selection, detection, and recall biases. Prospective studies are expensive and more difficult to perform, but they likely provide more accurate estimates of new neurological deficit rates. METHODS New neurological deficits were recorded in a prospective study of complex ASD surgeries (pSR1) with a defined outcomes measure (decrement in American Spinal Injury Association lower-extremity motor score) for neurological deficits...
May 5, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28475018/pedicle-subtraction-osteotomy-a-comprehensive-analysis-in-104-patients-does-the-cause-of-deformity-influence-the-outcome
#15
Karin Eskilsson, Deep Sharma, Christer Johansson, Rune Hedlund
OBJECTIVE The clinical outcomes and complications of patients who underwent pedicle subtraction osteotomy (PSO) for various diagnoses were compared. More specifically, the purpose was to identify if outcomes differed between patients with flat-back syndrome after lumbar fusion (FBS-LF) versus patients who underwent surgery for adult spinal deformity (ASD). METHODS A retrospective analysis of 104 patients who underwent a PSO for sagittal plane imbalance was performed. There were 28 patients with FBS-LF and 76 patients with various forms of ASD...
May 5, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28452633/post-spinal-cord-injury-astrocyte-mediated-functional-recovery-in-rats-after-intraspinal-injection-of-the-recombinant-adenoviral-vectors-ad5-vegf-and-ad5-ang
#16
Tatyana Povysheva, Maksim Shmarov, Denis Logunov, Boris Naroditsky, Ilya Shulman, Sergey Ogurcov, Pavel Kolesnikov, Rustem Islamov, Yuri Chelyshev
OBJECTIVE The most actively explored therapeutic strategy for overcoming spinal cord injury (SCI) is the delivery of genes encoding molecules that stimulate regeneration. In a mouse model of amyotrophic lateral sclerosis and in preliminary clinical trials in patients with amyotrophic lateral sclerosis, the combined administration of recombinant adenoviral vectors (Ad5-VEGF+Ad5-ANG) encoding the neurotrophic/angiogenic factors vascular endothelial growth factor ( VEGF) and angiogenin ( ANG) was found to slow the development of neurological deficits...
April 28, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28452632/the-impact-of-spinopelvic-morphology-on-the-short-term-outcome-of-pedicle-subtraction-osteotomy-in-104-patients
#17
Karin Eskilsson, Deep Sharma, Christer Johansson, Rune Hedlund
OBJECTIVE Pedicle subtraction osteotomy (PSO) is commonly performed for correction of spinal sagittal plane deformities. The PSO results in complex, multiple changes of the spinopelvic alignment. The influence of the variability of individual pelvic morphology has not been fully analyzed in previous outcome studies of sagittal imbalance. The aim of this study was to define radiological variables affecting the outcome after PSO in adult spinal deformities, with special emphasis on the variability of pelvic morphology...
April 28, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28452631/the-role-of-revision-surgery-and-adjuvant-therapy-following-subtotal-resection-of-osteosarcoma-of-the-spine-a-systematic-review-with-meta-analysis
#18
Ganesh M Shankar, Michelle J Clarke, Tamir Ailon, Laurence D Rhines, Shreyaskumar R Patel, Arjun Sahgal, Ilya Laufer, Dean Chou, Mark H Bilsky, Daniel M Sciubba, Michael G Fehlings, Charles G Fisher, Ziya L Gokaslan, John H Shin
OBJECTIVE Primary osteosarcoma of the spine is a rare osseous neoplasm. While previously reported retrospective studies have demonstrated that overall patient survival is impacted mostly by en bloc resection and chemotherapy, the continued management of residual disease remains to be elucidated. This systematic review was designed to address the role of revision surgery and multimodal adjuvant therapy in cases in which en bloc excision is not initially achieved. METHODS A systematic literature search spanning the years 1966 to 2015 was performed on PubMed, Medline, EMBASE, and Web of Science to identify reports describing outcomes of patients who underwent biopsy alone, neurological decompression, or intralesional resection for osteosarcoma of the spine...
April 28, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28430052/predicting-complication-risk-in-spine-surgery-a-prospective-analysis-of-a-novel-risk-assessment-tool
#19
Anand Veeravagu, Amy Li, Christian Swinney, Lu Tian, Adrienne Moraff, Tej D Azad, Ivan Cheng, Todd Alamin, Serena S Hu, Robert L Anderson, Lawrence Shuer, Atman Desai, Jon Park, Richard A Olshen, John K Ratliff
OBJECTIVE The ability to assess the risk of adverse events based on known patient factors and comorbidities would provide more effective preoperative risk stratification. Present risk assessment in spine surgery is limited. An adverse event prediction tool was developed to predict the risk of complications after spine surgery and tested on a prospective patient cohort. METHODS The spinal Risk Assessment Tool (RAT), a novel instrument for the assessment of risk for patients undergoing spine surgery that was developed based on an administrative claims database, was prospectively applied to 246 patients undergoing 257 spinal procedures over a 3-month period...
April 21, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28430051/reversible-postoperative-blindness-caused-by-bilateral-status-epilepticus-amauroticus-following-thoracolumbar-deformity-correction-case-report
#20
Tarik F Ibrahim, Rochelle T Sweis, Russ P Nockels
Postoperative vision loss (POVL) is a devastating complication and has been reported after complex spine procedures. Anterior ischemic optic neuropathy and posterior optic neuropathy are the 2 most common causes of POVL. Bilateral occipital lobe seizures causing complete blindness are rare and have not been reported as a cause of POVL after spine surgery with the patient prone. The authors report the case of a 67-year-old man without a history of seizures who underwent a staged thoracolumbar deformity correction and developed POVL 6 hours after surgery...
April 21, 2017: Journal of Neurosurgery. Spine
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