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Journal of Neurosurgery. Spine

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https://www.readbyqxmd.com/read/29451439/editorial-dynamic-atlantoaxial-instrumentation-to-preserve-cervical-mobility
#1
Timur M Urakov, Michael Y Wang
No abstract text is available yet for this article.
February 16, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29451438/reinnervation-of-the-rectum-with-transfer-of-the-genital-branch-of-the-genitofemoral-nerve-to-the-pelvic-nerve-in-rats
#2
Chuanjiang Dong, Ping Zhu, Zonglan Xie, Zheqi Fan, Ziqiang Dong
OBJECTIVE The purpose of this study was to determine the feasibility of rectum reinnervation with transfer of a primarily genitofemoral nerve to the pelvic nerve in the rat. METHODS Thirty-six male rats were randomly divided into 3 groups: rats in the nerve transfer group (n = 12) were subjected to rectal denervation and then bilateral genitofemoral nerve-pelvic nerve transfer; rats in the nerve resection group (n = 12) underwent rectum denervation without nerve transfer; and rats in the control group (n = 12) underwent sham surgery...
February 16, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29451437/do-intraoperative-radiographs-predict-final-lumbar-sagittal-alignment-following-single-level-transforaminal-lumbar-interbody-fusion
#3
Khalid M I Salem, Aditya P Eranki, Scott Paquette, Michael Boyd, John Street, Brian K Kwon, Charles G Fisher, Marcel F Dvorak
OBJECTIVE The study aimed to determine if the intraoperative segmental lordosis (as calculated on a cross-table lateral radiograph following a single-level transforaminal lumbar interbody fusion [TLIF] for degenerative spondylolisthesis/low-grade isthmic spondylolisthesis) is maintained at discharge and at 6 months postsurgery. METHODS The authors reviewed images and medical records of patients ≥ 16 years of age with a diagnosis of an isolated single-level, low-grade spondylolisthesis (degenerative or isthmic) with symptomatic spinal stenosis treated between January 2008 and April 2014...
February 16, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29451436/novel-posterior-artificial-atlanto-odontoid-joint-for-atlantoaxial-instability-a-biomechanical-study
#4
Kai Shen, Zhongliang Deng, Junsong Yang, Chao Liu, Ranxi Zhang
OBJECTIVE Atlantoaxial instability is usually corrected by anterior and/or posterior C1-2 fusion. However, fusion can lead to considerable loss of movement at the C1-2 level, which can adversely impact a patient's quality of life. In this study, the authors investigated the stability and function of a novel posterior artificial atlanto-odontoid joint (NPAAJ) by using cadaveric cervical spines. METHODS The Oc-C7 regions from 10 cadaveric spines were used for anteroposterior (AP) translation and range of motion (ROM) tests while intact and after destabilization, NPAAJ implantation, and double-rod fixation...
February 16, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29451435/safe-insertion-of-s-2-alar-iliac-screws-radiological-comparison-between-2-insertion-points-using-computed-tomography-and-3d-analysis-software
#5
Kentaro Yamada, Yuichiro Abe, Shigenobu Satoh
OBJECTIVE S-2 alar iliac (S2AI) screws are commonly used as anchors for lumbosacral fixation. A serious potential complication of screw insertion is major vascular injury due to anterior or caudal screw deviation. To avoid screw deviation, the pelvic inlet view on intraoperative fluoroscopy images is recommended. However, there has been no detailed investigation of optimal fluoroscopic incline with the pelvic inlet view. The purpose of this study was to investigate the safety margins and to optimize fluoroscopic settings to avoid screw deviation with 2 reported insertion techniques using 3D analysis software and CT...
February 16, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29424677/prospective-assessment-of-the-safety-and-early-outcomes-of-sublaminar-band-placement-for-the-prevention-of-proximal-junctional-kyphosis
#6
Vibhu K Viswanathan, Sunil Kukreja, Amy J Minnema, H Francis Farhadi
OBJECTIVE Proximal junctional kyphosis (PJK) can progress to proximal junctional failure (PJF), a widely recognized early and serious complication of multisegment spinal instrumentation for the treatment of adult spinal deformity (ASD). Sublaminar band placement has been suggested as a possible technique to prevent PJK and PJF but carries the theoretical possibility of a paradoxical increase in these complications as a result of the required muscle dissection and posterior ligamentous disruption. In this study, the authors prospectively assess the safety as well as the early clinical and radiological outcomes of sublaminar band insertion at the upper instrumented vertebra (UIV) plus 1 level (UIV+1)...
February 9, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29424676/a-multicenter-randomized-double-blind-dose-finding-study-of-condoliase-in-patients-with-lumbar-disc-herniation
#7
Yukihiro Matsuyama, Kazuhiro Chiba, Hisashi Iwata, Takayuki Seo, Yoshiaki Toyama
OBJECTIVE Chemonucleolysis with condoliase has the potential to be a new, less invasive therapeutic option for patients with lumbar disc herniation (LDH). The aim of the present study was to determine the most suitable therapeutic dose of condoliase. METHODS Patients between 20 and 70 years of age with unilateral leg pain, positive findings on the straight leg raise test, and LDH were recruited. All eligible patients were randomly assigned to receive condoliase (1.25, 2.5, or 5 U) or placebo. The primary end point was a change in the worst leg pain from preadministration (baseline) to week 13...
February 9, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29424675/intradural-spinal-arachnoid-cyst-resection-implications-of-duraplasty-in-a-large-case-series
#8
Ziev B Moses, Gabriel N Friedman, David L Penn, Isaac H Solomon, John H Chi
OBJECTIVE Optimal diagnosis and management strategies for intradural spinal arachnoid cysts (SACs) are still unresolved given the rare nature of this entity, with few large case series and virtually no statistical analyses of patient characteristics in the literature. Here, the authors studied a large patient cohort with these lesions to determine whether pre- or postoperative attributes could be used to aid in either diagnosis or prognosis. METHODS A chart review was completed at a single institution for the period from 2002 to 2016 to determine the preoperative characteristics and postoperative outcomes of 21 patients with exclusively intradural SACs...
February 9, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29424674/usefulness-of-corset-adoption-after-single-level-lumbar-discectomy-a-randomized-controlled-trial
#9
Cesare Zoia, Daniele Bongetta, Cristiano Alicino, Marcella Chimenti, Raffaelino Pugliese, Paolo Gaetani
OBJECTIVE In this paper, the authors sought to verify whether corset adoption could improve the short-term and midterm outcome scores of patients after single-level lumbar discectomy. METHODS A monocentric, randomized controlled trial of 54 consecutive patients who underwent single-level lumbar discectomy at the authors' institution was performed from September 2014 to August 2015. Patients were randomly assigned to use or not use a lumbar corset in the upright position. Patients with previous interventions for disc herniation or with concomitant canal or foraminal stenosis were excluded...
February 9, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29424673/nerve-fascicle-transfer-using-a-part-of-the-c-7-nerve-for-spinal-accessory-nerve-injury
#10
Xuan Ye, Yun-Dong Shen, Jun-Tao Feng, Wen-Dong Xu
OBJECTIVE Spinal accessory nerve (SAN) injury results in a series of shoulder dysfunctions and continuous pain. However, current treatments are limited by the lack of donor nerves as well as by undesirable nerve regeneration. Here, the authors report a modified nerve transfer technique in which they employ a nerve fascicle from the posterior division (PD) of the ipsilateral C-7 nerve to repair SAN injury. The technique, first performed in cadavers, was then undertaken in 2 patients. METHODS Six fresh cadavers (12 sides of the SAN and ipsilateral C-7) were studied to observe the anatomical relationship between the SAN and C-7 nerve...
February 9, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29424672/sacral-pedicle-subtraction-osteotomy-for-an-extreme-case-of-positive-sagittal-balance-case-report
#11
Ali K Ozturk, Patricia Zadnik Sullivan, Vincent Arlet
The importance of sagittal spinal balance and lumbopelvic parameters is now well understood. The popularization of various osteotomies, including Smith-Peterson, Ponte, and pedicle subtraction osteotomies (PSOs), as well as vertebral column resections, have greatly enhanced the spine surgeon's ability to recognize and effectively treat sagittal imbalance. Yet rare circumstances remain, most notably in distal kyphotic deformities and patients with extremely elevated pelvic incidences, where these techniques remain inadequate...
February 9, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29424671/reproducibility-temporal-stability-and-functional-correlation-of-diffusion-mr-measurements-within-the-spinal-cord-in-patients-with-asymptomatic-cervical-stenosis-or-cervical-myelopathy
#12
Benjamin M Ellingson, Noriko Salamon, Davis C Woodworth, Hajime Yokota, Langston T Holly
OBJECTIVE The purpose of this study was to quantify the reproducibility, temporal stability, and functional correlation of diffusion MR characteristics in the spinal cord in patients with cervical stenosis with or without myelopathy. The association between longitudinal diffusion tensor imaging (DTI) measurements and serial neurological function assessment was explored at both the group and individual level. METHODS Sixty-six nonoperatively treated patients with cervical stenosis were prospectively followed (3 months to > 5 years) using synchronous serial MRI and functional outcome assessment...
February 9, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29393833/myelopathy-after-cervical-disc-arthroplasty-due-to-progression-of-spondylosis-at-the-index-level-case-report
#13
Anita Bhansali, Michael Musacchio, Noam Stadlan
Cervical disc arthroplasty (CDA) has emerged as a popular alternative to anterior cervical discectomy and fusion (ACDF) for the surgical treatment of cervical degenerative disc disease. CDA has been well studied, with efficacy reported to be equivalent to or better than that seen with ACDF, and it is associated with a consistently low incidence of adverse events. The development or progression of myelopathy after CDA is a particularly rare occurrence. In this report, the authors describe the first known case of recurrence of myelopathy at the index level of surgery after CDA implantation due the continuation of the spondylitic process after placement of the artificial disc...
February 2, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29393832/letter-to-the-editor-hybrid-cervical-disc-arthroplasty-for-cervical-myelopathy-associated-with-congenital-cervical-stenosis
#14
Yawei Li, Guohua Lv, Bing Wang
No abstract text is available yet for this article.
February 2, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29393831/a-historical-recount-of-chordoma
#15
Ronald Sahyouni, Khodayar Goshtasbi, Amin Mahmoodi, Jefferson W Chen
Chordoma, a rare bone tumor that occurs along the spine, has led scientists on a fascinating journey of discoveries. In this historical vignette, the authors track these discoveries in diagnosis and treatment, noting events and clinicians that played pivotal roles in our current understanding of chordoma. The study of chordoma begins in 1846 when Rudolf Virchow first observed its occurrence on a dorsum sellae; he coined the term "chordomata" 11 years later. The chordoma's origin was greatly disputed by members of the scientific community...
February 2, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29393830/s-1-alar-iliac-screw-technique-for-spinopelvic-fixation
#16
J Mason DePasse, Mauricio Valdes, Mark A Palumbo, Alan H Daniels, Craig P Eberson
Spinopelvic fixation provides an important anchor for long fusions in spinal deformity surgery, and it is also used in the treatment of other spine pathologies. Iliac screws are known to sometimes require reoperation due to pain resulting from hardware prominence and skin injury. S-2 alar/iliac (S2AI) screws do not often require removal, but they may provide inadequate fixation in select cases. In this paper the authors describe a technique for S-1 alar/iliac screws that may be used independently or as a supplement to S2AI screws...
February 2, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29372864/beauty-parlor-stroke-syndrome-due-to-a-bone-fragment-from-an-osteophyte-of-the-atlas-case-report
#17
Takuya Kameda, Koji Otani, Takamitsu Tamura, Shinichi Konno
Beauty parlor stroke syndrome (BPSS) is a rare condition characterized by mechanical impingement of a vertebral artery (VA) during neck rotation and/or hyperextension followed by vertebrobasilar insufficiency. However, there have been no reports of BPSS in which the cause of mechanical impingement was identified and no cases for which surgical treatment was reported. The authors report the case of a 56-year-old Japanese man who presented with presyncope that occurred during cervical extension. Given the possibility of vertebrobasilar insufficiency, digital subtraction angiography and CT angiography were performed...
January 26, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29372863/ossified-ligamentum-flavum-of-the-thoracic-spine-presenting-as-spontaneous-intracranial-hypotension-case-report
#18
Mazda K Turel, Mena G Kerolus, John E O'Toole
Ossification of the ligament flavum in the thoracic spine is an uncommon radiological finding in the Western population but can present with back pain, varying degrees of myelopathy, and even paraplegia on occasion. The authors here present the case of a 50-year-old woman with a history of progressive back pain and symptoms of spontaneous intracranial hypotension who was found to have an ossified ligamentum flavum of the thoracic spine resulting in a dural erosion cerebrospinal fluid leak. Surgery involved removal of the ossified ligament flavum at T10-11, facetectomy, ligation of the nerve root, and primary closure of the dura, which resulted in complete resolution of the patient's symptoms...
January 26, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29372862/damage-capitation-in-the-modern-liability-climate-a-primer-for-neurosurgeons-and-systematic-review-of-the-literature
#19
Jacob R Lepard, Beverly C Walters, Curtis J Rozzelle
OBJECTIVE Neurosurgery, and particularly spine surgery, is among the most highly litigated medical specialties in the US, rendering the current malpractice climate of primary importance to spine surgeons nationwide. One of the primary methods of tort reform in the civil justice system is malpractice damage capitation (or "caps"); however, its efficacy is widely debated. The purpose of this article is to serve as a review for the practicing neurosurgeon, with particular emphasis on short- and long-term effects of damage caps and on the current debate regarding their utility, based on a systematic review of the literature...
January 26, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29372861/safety-and-efficacy-of-balloon-kyphoplasty-at-4-or-more-levels-in-a-single-anesthetic-session
#20
Alan C Wang, Daniel K Fahim
OBJECTIVE In this case series, the authors evaluated the safety of balloon kyphoplasty at 4 or more vertebral levels in a single anesthetic session. The current standard is that no more than 3 levels should be cemented at one time because of a perceived risk of increased complications. METHODS A retrospective chart review was performed for 19 consecutive patients who underwent ≥ 4-level balloon kyphoplasty between July 1, 2011, and December 31, 2015. Outcomes documented included kyphoplasty-associated complications and incidences of subsequent vertebral fracture...
January 26, 2018: Journal of Neurosurgery. Spine
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