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Lumbar laminectomy

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https://www.readbyqxmd.com/read/28342975/biomechanical-testing-of-a-peek-based-dynamic-instrumentation-device-in-a-lumbar-spine-model
#1
Christian Herren, Agnes Beckmann, Sabine Meyer, Miguel Pishnamaz, Marion Mundt, Rolf Sobottke, Andreas Prescher, Marcus Stoffel, Bernd Markert, Philipp Kobbe, Hans-Christoph Pape, Peer Eysel, Jan Siewe
BACKGROUND: The purpose of this study was to investigate the range-of-motion after posterior polyetheretherketone-based rod stabilisation combined with a dynamic silicone hinge in order to compare it with titanium rigid stabilisation. METHODS: Five human cadaveric lumbar spines with four vertebra each (L2 to L5) were tested in a temperature adjustable spine-testing set-up in four trials: (1) native measurement; (2) kinematics after rigid monosegmental titanium rod instrumentation with anterior intervertebral bracing of the segment L4/5; (3) kinematics after hybrid posterior polyetheretherketone rod instrumentation combined with a silicone hinge within the adjacent level (L3/4) and (4) kinematics after additional decompression with laminectomy of L4 and bilateral resection of the inferior articular processes (L3)...
March 18, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28339521/effect-of-fibromyalgia-symptoms-on-outcome-of-spinal-surgery
#2
Jacob N Ablin, Mark Berman, Valerie Aloush, Gilad Regev, Khalil Salame, Dan Buskila, Zvi Lidar
Objectives. : To evaluate the effect of presurgical symptoms characteristic of fibromyalgia on the postsurgical outcome of patients undergoing spinal surgery. Methods. : In this observational cohort study, participants were patients scheduled for spinal surgery, including cervical or lumbar laminectomy and foraminectomy. Presurgical evaluation included physical examination and manual dolorimetry. Questionnaires included the widespread pain index (WPI), symptom severity scale (SSS), and SF-36...
October 22, 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28329748/extensive-multilevel-split-laminotomy-for-debulking-a-cervicothoracolumbar-nondysraphic-intramedullary-spinal-cord-lipoma-in-a-2-month-old-infant
#3
Ha Son Nguyen, Sean Lew
INTRODUCTION: Laminectomy is the traditional approach for posterior exposure of the spinal canal for tumor resection. Another technique is split laminotomy, which entails the division and retraction of the spinous processes and laminae to access the thecal sac. This technique has been employed for small-segment exposures, but not extensively explored for long-segment exposures. CASE: A 2-month-old male presented with progressive right-leg plegia. MRI of the spine revealed a large, intramedullary spinal-cord lipoma extending from C6 to L5...
March 23, 2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28327960/geographic-and-hospital-variation-in-cost-of-lumbar-laminectomy-and-lumbar-fusion-for-degenerative-conditions
#4
Corinna C Zygourakis, Caterina Y Liu, Glenn Wakam, Christopher Moriates, Christy Boscardin, Christopher P Ames, Praveen V Mummaneni, John Ratliff, R Adams Dudley, Ralph Gonzales
BACKGROUND: Spinal surgery costs vary significantly across hospitals and regions, but there is insufficient understanding of what drives this variation. OBJECTIVE: To examine the factors underlying the cost variation for lumbar laminectomy/discectomy and lumbar fusions. METHODS: We obtained patient information (age, gender, race, severity of illness, risk of mortality, population of county of residence, median zipcode income, insurance status, elective vs nonelective admission, length of stay) and hospital data (region, hospital type, bed size, wage index) for all patients who underwent lumbar laminectomy/discectomy (n = 181 267) or lumbar fusions (n = 433 364) for degenerative conditions in the 2001 to 2013 National Inpatient Sample database...
March 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28320256/internal-decompression-for-spinal-stenosis-idss-for-decompression-and-use-of-interlaminar-dynamic-device-coflextm-for-stabilization-in-the-surgical-management-of-degenerative-lumbar-canal-stenosis-with-or-without-mild-segmental-instability-our-initial-results
#5
Sumeet G Pawar, Arjun Dhar, Apurva Prasad, Satyashiva Munjal, P S Ramani
INTRODUCTION: Internal decompression of spinal stenosis (IDSS) and Posterior dynamic stabilization (PDS) form a bridge between decompression laminectomy alone and rigid fusion, by attempting to sustain beneficial effects of decompression and stabilization in an attempt to prevent bad effects of relentless degeneration. OBJECTIVE: To evaluate the clinical outcome in operated patient of posterior dynamic stabilization. DESIGN: Data were collected over 1 year in prospective, nonrandomized follow-up study using outcome scales...
March 21, 2017: Neurological Research
https://www.readbyqxmd.com/read/28291642/chitosan-dextran-gel-as-an-anti-adhesion-agent-in-a-postlaminectomy-spinal-sheep-model
#6
Sukanya Rajiv, Amanda Drilling, Ahmed Bassiouni, Marguerite Harding, Craig James, Simon Robinson, Steve Moratti, Peter-John Wormald
INTRODUCTION: Post-operative peridural adhesions increase morbidity after neurosurgical procedures. Aim of this study is to assess safety and efficacy of Chitosan-Dextran (CD) gel as an anti-adhesion agent in a spinal laminectomy sheep model. METHODS: Eighteen sheep were used in this study with 6 animals in each treatment arm (namely, CD gel, Gelfoam paste and normal saline control). Posterior lumbar laminectomy was performed in all animals and the dura was exposed intact...
March 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28291403/a-rat-model-of-chronic-syringomyelia-induced-by-epidural-compression-of-the-lumbar-spinal-cord
#7
Ji Yeoun Lee, Shin Won Kim, Saet Pyoul Kim, Hyeonjin Kim, Jung-Eun Cheon, Seung-Ki Kim, Sun Ha Paek, Dachling Pang, Kyu-Chang Wang
OBJECTIVE There has been no established animal model of syringomyelia associated with lumbosacral spinal lipoma. The research on the pathophysiology of syringomyelia has been focused on Chiari malformation, trauma, and inflammation. To understand the pathophysiology of syringomyelia associated with occult spinal dysraphism, a novel animal model of syringomyelia induced by chronic mechanical compression of the lumbar spinal cord was created. METHODS The model was made by epidural injection of highly concentrated paste-like kaolin solution through windows created by partial laminectomy of L-1 and L-5 vertebrae...
February 17, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28260098/identification-of-crucial-genes-associated-with-rat-traumatic-spinal-cord-injury
#8
Zibin Yang, Qiao Lv, Zhengxiang Wang, Xiliang Dong, Rongxin Yang, Wei Zhao
The aim of the present study was to investigate the key genes associated with traumatic spinal cord injuries (TSCI). The dataset GSE52763 was downloaded from the Gene Expression Omnibus, for which lumbar spinal cord samples were obtained from rats at 1 and 3 weeks following contusive spinal cord injury and 1 week subsequent to a sham laminectomy, and used to identify differentially expressed genes (DEGs). Functional enrichment analysis, co‑expression analysis and transcription factor (TF) identification were performed for DEGs common to the 1 and 3 week injury samples...
March 1, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28248539/in-vivo-recording-of-nerve-conduction-velocity-of-spinal-cns-fibers-in-the-mouse
#9
P Dibaj, E D Schomburg
Anesthetic and surgical procedures and an electrophysiological method were developed for recording nerve conduction velocity (NCV) of CNS fibers in the murine spinal cord. Under intravenous anesthesia and artificial ventilation the lumbar spinal cord segments L1 to L4 and dorsal roots L3 to L5 on the left side were exposed by laminectomy. After stimulation of the dorsal root L4, a compound action potential (CAP) was recorded at the ipsilateral left fasciculus gracilis at the spinal cord level L1. The latency from stimulation to the CAP together with the measured distance between the electrodes was used for the determination of the NCV...
February 28, 2017: Physiological Research
https://www.readbyqxmd.com/read/28243372/histopathological-analysis-of-ligamentum-flavum-in-lumbar-spinal-stenosis-and-disc-herniation
#10
Idiris Altun, Kasım Zafer Yüksel
STUDY DESIGN: Histopathological analyses were performed in ligamentum flavum (LF) hypertrophy patients with lumbar spinal stenosis (LSS) and lumbar disc herniation (LDH). PURPOSE: The aim of the present study was to evaluate histopathological changes in LF patients with LSS and LDH. OVERVIEW OF LITERATURE: LSS is the most common spinal disorder in elderly patients. This condition causes lower back and leg pain and paresis, and occurs as a result of degenerative changes in the lumbar spine, including bulging of the intervertebral discs, bony proliferation of the facet joints, and LF thickening; among these, LF thickening is considered a major contributor to the development of LSS...
February 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28217388/neurosurgery-concepts-key-perspectives-on-imaging-characteristics-of-spinal-metastases-surgery-for-low-back-pain-anesthesia-for-disc-surgery-and-laminectomy-versus-laminectomy-and-fusion-for-lumbar-spondylolisthesis
#11
Carlito Lagman, Lawrance K Chung, Luke Macyszyn, Winward Choy, Zachary A Smith, Nader S Dahdaleh, Angela M Bohnen, Jin M Cho, Chaim B Colen, Edward Duckworth, Anand V Germanwala, Peter Kan, Alexander A Khalessi, Chae-Yong Kim, Sandi Lam, Gordon Li, Michael Lim, Jonathan H Sherman, Vincent Y Wang, Gabriel Zada, Isaac Yang
No abstract text is available yet for this article.
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28216749/percutaneous-endoscopic-lumbar-discectomy-results-of-first-100-cases
#12
Kanthila Mahesha
BACKGROUND: Lumbar disc herniation is a major cause of back pain and sciatica. The surgical management of lumbar disc prolapse has evolved from exploratory laminectomy to percutaneous endoscopic discectomy. Percutaneous endoscopic discectomy is the least invasive procedure for lumbar disc prolapse. The aim of this study was to analyze the clinical outcome, quality of life, neurologic function, and complications. MATERIALS AND METHODS: One hundred patients with lumbar disc prolapse who were treated with percutaneous endoscopic discectomy from May 2012 to January 2014 were included in this retrospective study...
January 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28207670/feasibility-study-of-utilization-of-action-camera-gopro-hero-4-google-glass-and-panasonic-hx-a100-in-spine-surgery
#13
Chang Kyu Lee, Youngjun Kim, Nam Lee, Byeongwoo Kim, Doyoung Kim, Seong Yi
STUDY DESIGN: Study for feasibility of commercially available action cameras in recording video of spine. OBJECTIVE: Recent innovation of the wearable action camera with high-definition video recording enables surgeons to use camera in the operation at ease without high costs. The purpose of this study is to compare the feasibility, safety, and efficacy of commercially available action cameras in recording video of spine surgery. SUMMARY OF BACKGROUND DATA: There are early reports of medical professionals using Google Glass throughout the hospital, Panasonic HX-A100 action camera, and GoPro...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28204925/circumferential-fusion-for-degenerative-lumbar-spondylolisthesis-complicated-by-distal-junctional-grade-4-spondylolisthesis-in-the-sub-acute-post-operative-setting
#14
Alexander A Theologis, Deeptee Jain, Christopher P Ames, Murat Pekmezci
INTRODUCTION: Surgical management for lumbar stenosis is generally safe and provides significant improvements in pain, disability, and function. Successful lumbar decompression hinges on removing an appropriate amount of lamina and other compressive pathology in the lateral recess. Too little bony decompression can result in persistent pain and disability, while over resection of the pars and/or facets may jeopardize spinal stability. CASE REPORT: In this unique report, we present for the first time an acute iatrogenic grade 4 L5-S1 spondylolisthesis distal to a L3-5 laminectomy and circumferential instrumented fusion due to bilateral iatrogenic L5 pars fractures and its management and clinical outcomes after revision operation...
February 15, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28175510/317%C3%A2-clinical-outcome-of-transspinous-approach-in-comparison-with-conventional-laminectomy-for-lumbar-degenerative-stenosis
#15
Aysegul Ozdemir Ovalioglu, Erhan Emel, Emre Tacyildiz, Cem Ovalioglu, Muslum Gunes, Levent Uysal, Aysegul Esen Aydin
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28164124/characteristics-of-hemorrhagic-stroke-following-spine-and-joint-surgeries
#16
REVIEW
Fei Yang, Jianning Zhao, Haidong Xu
Hemorrhagic stroke can occur after spine and joint surgeries such as laminectomy, lumbar spinal fusion, tumor resection, and total joint arthroplasty. Although this kind of stroke rarely happens, it may cause severe consequences and high mortality rates. Typical clinical symptoms of hemorrhagic stroke after spine and joint surgeries include headache, vomiting, consciousness disturbance, and mental disorders. It can happen several hours after surgeries. Most bleeding sites are located in cerebellar hemisphere and temporal lobe...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28162204/-evidence-based-clinical-practice-guidelines-for-the-treatment-of-dural-tears-and-the-consequent-cerebrospinal-fluid-leak-during-spine-surgery
#17
(no author information available yet)
Dural tears (DT) and the consequent cerebral spinal fluid (CSF) leak are not rare in spine surgeries. CSF leak can be troublesome, leading to pseudomeningocele, cutaneous CSF fistula, and meningitis. Revision surgery is unavoidable in some cases. The reported incidences of DT and CSF leak are different according to the various pathologies. Ossification of the posterior longitudinal ligament, revision spine surgery and multi-segment laminectomy have higher risks for DT. Various techniques have been described to manage this complication, such as bed rest, repair with dural substitutes, fibrin glue, gelatin sponge, lumbar drain, muscle flap, etc...
February 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28158159/full-endoscopic-assisted-lumbar-decompressive-surgery-performed-in-an-outpatient-ambulatory-facility-report-of-5-years-of-complications-and-risk-factors
#18
Solomon Kamson, Andrea M Trescot, Paul D Sampson, Yiyi Zhang
BACKGROUND: Minimally invasive surgery (MIS) technique is becoming the standard tissue sparing approach for decompression of lumbar central and lateral recess stenosis, intervertebral disc herniation, or any situation that would have required extensive open decompression laminectomy. Full-endoscopic or arthroscopic assisted surgery is arguably the "ultra-MIS" approach to lumbar spinal pathology. Age and body mass index (BMI) are significant risk factors to be considered in full-endoscopic assisted ultra-MIS...
February 2017: Pain Physician
https://www.readbyqxmd.com/read/28146018/need-for-two-year-patient-reported-outcomes-score-for-lumbar-spine-surgery-is-procedure-specific-analysis-from-a-prospective-longitudinal-spine-registry
#19
Elliott J Kim, Silky Chotai, Kristin R Archer, Mohamad Bydon, Anthony L Asher, Clinton J Devin
STUDY DESIGN: Retrospective analysis of prospectively collected data OBJECTIVE.: The aim of this study was to determine whether 1-year patient-reported outcomes (PROs) can accurately assess effective care for patients undergoing surgery for degenerative lumbar spine disease SUMMARY OF BACKGROUND DATA.: Prospective longitudinal PROs registries provide a means to accurately assess outcomes and determine the relative effectiveness of various spine treatments. Obtaining long-term PROs can be costly and challenging...
January 31, 2017: Spine
https://www.readbyqxmd.com/read/28143506/utilization-of-ct-scanning-associated-with-complex-spine-surgery
#20
Vikas V Patel, Gunnar B J Andersson, Steven R Garfin, Donald L Resnick, Jon E Block
BACKGROUND: Due to the risk associated with exposure to ionizing radiation, there is an urgent need to identify areas of CT scanning overutilization. While increased use of diagnostic spinal imaging has been documented, no previous research has estimated the magnitude of follow-up imaging used to evaluate the postoperative spine. METHODS: This retrospective cohort study quantifies the association between spinal surgery and CT utilization. An insurance database (Humana, Inc...
January 31, 2017: BMC Musculoskeletal Disorders
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