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https://www.readbyqxmd.com/read/27898599/influence-of-sacral-slope-on-the-loading-of-pedicle-screws-in-postoperative-l5-s1-isthmic-spondylolisthesis-patient-a-finite-element-analysis
#1
Liang Chen, Yu Feng, Chun-Qing Che, Yong Gu, Ling-Jun Wang, Hui-Lin Yang
STUDY DESIGN: A finite element analysis. OBJECTIVE: To evaluate the influence of sacral slope (SS) on the loading of pedicle screws in postoperative isthmic spondylolisthesis (IS). SUMMARY OF BACKGROUND DATA: The spinopelvic anatomy was important for the biomechanics in spondylolisthesis. To our knowledge, no study concentrated on the postoperative biomechanics of the IS with the different SS. METHODS: Based on the computed tomography images, a finite model of L5/S1 IS was constructed...
December 1, 2016: Spine
https://www.readbyqxmd.com/read/27851660/the-utility-of-intraoperative-neuromonitoring-for-lumbar-pedicle-screw-placement-is-questionable-a-review-of-9957-cases
#2
Remi M Ajiboye, Stephen D Zoller, Anthony D'Oro, Zachary D Burke, William Sheppard, Christopher Wang, Zorica Buser, Jeffrey C Wang, Sina Pourtaheri
STUDY DESIGN: Retrospective database study OBJECTIVE.: The goal of this study was to 1). Evaluate the trends in the use of electromyography (EMG) for instrumented posterolateral lumbar fusions (PLFs) in the United States and 2). Assess the risk of neurological injury following PLFs with and without EMG. SUMMARY OF BACKGROUND DATA: Neurologic injuries from iatrogenic pedicle wall breaches during screw placement are known complications of PLFs. The routine use of intraoperative neuromonitoring (ION) such as EMG during PLF to improve the accuracy and safety of pedicle screw implantation remains controversial...
November 15, 2016: Spine
https://www.readbyqxmd.com/read/27847243/mechanical-deformation-of-posterior-thoracolumbar-fascia-after-myofascial-release-in-healthy-men-a-study-of-dynamic-ultrasound-imaging
#3
Ka-Kit Wong, Huei-Ming Chai, Yu-Jen Chen, Chung-Li Wang, Yio-Wha Shau, Shwu-Fen Wang
BACKGROUND: Myofascial release (MR) on the posterior thoracolumbar fascia (PLF) is one of the manual techniques aim to restore the normal length and tension of restricted fasciae and muscles. OBJECTIVES: The present study aimed to quantify the immediate effects of MR on fascial properties of the PLF in healthy men. DESIGN: Cross-sectional study. METHOD: Participants (N = 10, aged 22.8 ± 2.0 years) performed a press-down to maximal voluntary contraction (MVC) in the prone position...
October 25, 2016: Manual Therapy
https://www.readbyqxmd.com/read/27843688/extreme-lateral-lumbar-interbody-fusion-do-the-cons-outweigh-the-pros
#4
Nancy E Epstein
BACKGROUND: Major factors prompted the development of minimally invasive (MIS) extreme lateral interbody fusion (XLIF; NuVasive Inc., San Diego, CA, USE) for the thoracic/lumbar spine. These include providing interbody stabilization and indirect neural decompression while avoiding major visceral/vessel injury as seen with anterior lumbar interbody fusion (ALIF), and to avert trauma to paraspinal muscles/facet joints found with transforaminal lumbar interbody fusion (TLIF), posterior lumbar interbody fusion (PLIF), and posterior-lateral fusion techniques (PLF)...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27825021/abnormal-auditory-synchronization-in-stuttering-a-magnetoencephalographic-study
#5
Yoshikazu Kikuchi, Tsuyoshi Okamoto, Katsuya Ogata, Koichi Hagiwara, Toshiro Umezaki, Masamutsu Kenjo, Takashi Nakagawa, Shozo Tobimatsu
In a previous magnetoencephalographic study, we showed both functional and structural reorganization of the right auditory cortex and impaired left auditory cortex function in people who stutter (PWS). In the present work, we reevaluated the same dataset to further investigate how the right and left auditory cortices interact to compensate for stuttering. We evaluated bilateral N100m latencies as well as indices of local and inter-hemispheric phase synchronization of the auditory cortices. The left N100m latency was significantly prolonged relative to the right N100m latency in PWS, while healthy control participants did not show any inter-hemispheric differences in latency...
November 5, 2016: Hearing Research
https://www.readbyqxmd.com/read/27759976/determinaci%C3%A3-n-del-%C3%A3-ndice-gluc%C3%A3-mico-y-la-carga-gluc%C3%A3-mica-de-productos-l%C3%A3-cteos-fermentados-en-sujetos-adultos-sanos-sedentarios-y-deportistas
#6
Josefina Consuelo Morales Guerrero, Reina Rosas Romero, Rodrigo Antonio García Zepeda, Rodolfo Oropeza Hernández, Silvia Ruiz Jiménez, Alejandra R Ríos Chávez, Leticia Cervantes Covarrubias
Introducción: el índice glucémico (IG) y la carga glucémica (CG) de productos lácteos fermentados (PLF) con lactobacilos puede ser una recomendación útil para pacientes diabéticos y para la población en general.Objetivo: el objetivo del estudio fue medir el IG y la CG de PLF con lactobacilos en sujetos sedentarios y deportistas, y evaluar si existe diferencia entre ellos.Métodos: el estudio se realizó en México (DF) de acuerdo con la ISO26642:210 (Organización Internacional de Normalización). Los participantes fueron: 10 sedentarios y 10 deportistas...
September 20, 2016: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/27755500/coagulation-profile-as-a-risk-factor-for-30-day-morbidity-and-mortality-following-posterior-lumbar-fusion
#7
Rachel S Bronheim, Eric K Oermann, Samuel K Cho, John M Caridi
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To identify associations between abnormal coagulation profile and postoperative morbidity and mortality in patients undergoing posterior lumbar fusion (PLF). SUMMARY OF BACKGROUND DATA: The literature suggests that abnormal coagulation profile is associated with postoperative complications, notably the need for blood transfusion. However, there is little research that directly addresses the influence of coagulation profile on postoperative complications following PLF...
October 17, 2016: Spine
https://www.readbyqxmd.com/read/27749728/validation-of-heart-rate-monitor-polar-rs800-for-heart-rate-variability-analysis-during-exercise
#8
David Hernando, Nuria Garatachea, Rute Almeida, Jose Antonio Casajús, Raquel Bailón
Heart rate variability (HRV) analysis during exercise is an interesting non-invasive tool to measure the cardiovascular response to the stress of exercise. Wearable heart rate monitors are a comfortable option to measure RR intervals while doing physical activities. It is necessary to evaluate the agreement between HRV parameters derived from the RR series recorded by wearable devices and those derived from an ECG during dynamic exercise of low to high intensity.23 male volunteers performed an exercise stress test on a cycle ergometer...
September 27, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27749558/transforaminal-lumbar-interbody-fusion-versus-posterolateral-fusion-in-degenerative-lumbar-spondylosis-a-meta-analysis
#9
Bin-Fei Zhang, Chao-Yuan Ge, Bo-Long Zheng, Ding-Jun Hao
OBJECTIVE: The aim of the study was to evaluate the efficacy and safety of transforaminal lumbar interbody fusion (TLIF) versus posterolateral fusion (PLF) in degenerative lumbar spondylosis. METHODS: A systematic literature review was performed to obtain randomized controlled trials (RCTs) and observational studies (OSs) of TLIF and PLF for degenerative lumbar spondylosis. Trials performed before November 2015 were retrieved from the Medline, EMBASE, Cochrane library, and Chinese databases...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27733455/venous-access-and-long-term-pacemaker-lead-failure-comparing-contrast-guided-axillary-vein-puncture-with-subclavian-puncture-and-cephalic-cutdown
#10
Ngai-Yin Chan, Nim-Pong Kwong, Adrian-Piers Cheong
AIMS: Existing data on the relationship between venous access and long-term pacemaker lead failure (PLF) are scarce and inconsistent. We aim to study the hypothesis that contrast-guided axillary vein puncture (AP) is better than subclavian puncture (SP) and similar to cephalic vein cutdown (CV) in the incidence of PLF and the success rate of AP is higher than CV. METHODS AND RESULTS: The case records of 409 patients with 681 implantable pacemaker leads were reviewed...
October 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27731396/purine-and-pyrimidine-metabolism-convergent-evidence-on-chronic-antidepressant-treatment-response-in-mice-and-humans
#11
Dong Ik Park, Carine Dournes, Inge Sillaber, Manfred Uhr, John M Asara, Nils C Gassen, Theo Rein, Marcus Ising, Christian Webhofer, Michaela D Filiou, Marianne B Müller, Christoph W Turck
Selective Serotonin Reuptake Inhibitors (SSRIs) are commonly used drugs for the treatment of psychiatric diseases including major depressive disorder (MDD). For unknown reasons a substantial number of patients do not show any improvement during or after SSRI treatment. We treated DBA/2J mice for 28 days with paroxetine and assessed their behavioral response with the forced swim test (FST). Paroxetine-treated long-time floating (PLF) and paroxetine-treated short-time floating (PSF) groups were stratified as proxies for drug non-responder and responder mice, respectively...
October 12, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27642821/morphologic-evaluation-of-lumbosacral-nerve-roots-in-the-vertebral-foramen-measurement-of-local-pressure-of-the-intervertebral-foramen
#12
Yuichiro Morishita, Muneaki Masuda, Takeshi Maeda, Takayoshi Ueta, Keiichiro Shiba
STUDY DESIGN: The prospective cohort study. OBJECTIVE OF THE STUDY: The objective was to evaluate the relationships between local pressure changes of the intervertebral foramen during lumbar spine extension and lumbar foraminal morphology. SUMMARY OF BACKGROUND DATA: The physiological states of lumbosacral nerve roots in the vertebral foramen remain controversial. METHODS: We evaluated 56 lumbosacral vertebral foramens in 21 patients with L4-degenerative spondylolisthesis...
September 16, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27616183/pressurized-brines-in-continental-antarctica-as-a-possible-analogue-of-mars
#13
Emanuele Forte, Michele Dalle Fratte, Maurizio Azzaro, Mauro Guglielmin
Interest in brines in extreme and cold environments has recently increased after they have been found on Mars. Those brines can be potential new subsurface habitats for peculiar ecosystems. In the McMurdo Dry Valleys of the Antarctic, the best analogue for Mars conditions, only a few cases of brines have been identified in some perennially frozen lakes and in one case in an underground aquifer. Here, we present the occurrence of pressurized brines in a shallow perennially ice-covered lake south of 70°S in an ice-free area of Victoria Land, Antarctica...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27565009/transforaminal-lumbar-interbody-fusion-versus-instrumented-posterolateral-fusion-in-degenerative-spondylolisthesis-an-attempt-to-evaluate-the-superiority-of-one-method-over-the-other
#14
Amir Abbas Ghasemi
BACKGROUND: Various surgical procedures have been recommended for the treatment of degenerative spondylolisthesis,but Controversy still exists regarding the optimal surgical technique . In this study,we compared the clinical and radiologic outcome of the Transforaminal lumbar interbody fusion(TLIF) method with the Instrumented Posterolateral fusion(PLF) in these patients. METHODS: The study population in this retrospective study consisted of 145 consecutive patients of degenerative spondylolisthesis who had undergone lumbar fusion in our institute between September 2010 and October 2013...
November 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27564530/diagnostic-criteria-of-barotraumatic-perilymph-fistula-based-on-clinical-manifestations
#15
Ji Eun Choi, Il Joon Moon, Hankyeol Kim, Kieun Lee, Yang-Sun Cho, Won-Ho Chung
CONCLUSIONS: Patients with sudden hearing loss and dizziness after barotrauma should be suspected of barotraumatic perilymph fistula (PLF). Early surgical repair of PLF showed better hearing outcomes. Therefore, diagnostic criteria should help surgical indications of barotraumatic PLF. OBJECTIVES: The aim of this study was to establish diagnostic criteria for barotraumatic PLF. METHODS: Twenty-four patients (26 ears) underwent surgery on suspicion of barotraumatic PLF...
August 26, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27548582/one-level-lumbar-degenerative-spondylolisthesis-and-posterior-approach-is-transforaminal-lateral-interbody-fusion-mandatory-a-randomized-controlled-trial-with-two-year-follow-up
#16
Vincent Challier, Louis Boissiere, Ibrahim Obeid, Jean-Marc Vital, Jean-Etienne Castelain, Antoine Bénard, Nathalie Ong, Soufiane Ghailane, Vincent Pointillart, Simon Mazas, Rémi Mariey, Olivier Gille
STUDY DESIGN: .: Monocentric Open-label Randomized Controlled Trial (MRCT) OBJECTIVE..: Comparison of clinical and radiological outcomes between isolated instrumented posterior fusion (PLF) and associated instrumented posterior fusion and interbody fusion by transforaminal approach (PLF + TLIF) for patients suffering from one-level lumbar degenerative spondylolisthesis (DS) undergoing to surgery. SUMMARY OF BACKGROUND DATA: .: DS is a common cause of symptomatic lumbar stenosis...
August 19, 2016: Spine
https://www.readbyqxmd.com/read/27528855/comparison-of-two-synthetic-bone-graft-products-in-a-rabbit-posterolateral-fusion-model
#17
Douglas Fredericks, Emily B Petersen, Nicole Watson, Nicole Grosland, Katherine Gibson-Corley, Joseph Smucker
BACKGROUND: The drawbacks of iliac crest autograft as graft material for spine fusion are well reported. Despite continued modifications to improve bone healing capacity, the efficacy of synthetic graft materials as stand-alone replacements remains uncertain. The rabbit posterolateral fusion model is an established environment for testing of fusion concepts. It offers the opportunity to obtain radiographic, biomechanical and histological data on novel fusion materials. The objective of this study was to compare the spine fusion capability of two synthetic bone graft products in an established rabbit posterolateral spine fusion (PLF) model: Signafuse® Bioactive Bone Graft Putty and Actifuse® ABX...
2016: Iowa Orthopaedic Journal
https://www.readbyqxmd.com/read/27527227/perceptual-temporal-asymmetry-associated-with-distinct-on-and-off-responses-to-time-varying-sounds-with-rising-versus-falling-intensity-a-magnetoencephalography-study
#18
Yang Zhang, Bing Cheng, Tess K Koerner, Robert S Schlauch, Keita Tanaka, Masaki Kawakatsu, Iku Nemoto, Toshiaki Imada
This magnetoencephalography (MEG) study investigated evoked ON and OFF responses to ramped and damped sounds in normal-hearing human adults. Two pairs of stimuli that differed in spectral complexity were used in a passive listening task; each pair contained identical acoustical properties except for the intensity envelope. Behavioral duration judgment was conducted in separate sessions, which replicated the perceptual bias in favour of the ramped sounds and the effect of spectral complexity on perceived duration asymmetry...
August 5, 2016: Brain Sciences
https://www.readbyqxmd.com/read/27506991/validation-of-the-peak-bilirubin-criterion-for-outcome-after-partial-hepatectomy
#19
Kim M C van Mierlo, Toine M Lodewick, Dipok K Dhar, Victor van Woerden, Ralph Kurstjens, Frank G Schaap, Ronald M van Dam, Soumil Vyas, Massimo Malagó, Cornelis H C Dejong, Steven W M Olde Damink
INTRODUCTION: Postoperative liver failure (PLF) is a dreaded complication after partial hepatectomy. The peak bilirubin criterion (>7.0 mg/dL or ≥120 μmol/L) is used to define PLF. This study aimed to validate the peak bilirubin criterion as postoperative risk indicator for 90-day liver-related mortality. METHODS: Characteristics of 956 consecutive patients who underwent partial hepatectomy at the Maastricht University Medical Centre or Royal Free London between 2005 and 2012 were analyzed by uni- and multivariable analyses with odds ratios (OR) and 95% confidence intervals (95%CI)...
October 2016: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/27504329/the-ultrasonographic-determination-of-the-position-of-the-mental-foramen-and-its-relation-to-the-mandibular-premolar-teeth
#20
Abdullah Ebrahim Laher, Feroza Motara, Muhammed Moolla
INTRODUCTION: The position of the mental foramen has been well researched in cadaver specimens, radiographically as well as intraoperatively. To our knowledge, this landmark study is the first to make use of ultrasonography in a study population to determine the position of the mental foramen in relation to the mandibular premolar teeth. Ultrasonography has great potential to further revolutionize the practice of medicine and dento-maxillofacial surgery. AIM: To make use of ultrasound to determine the position of the mental foramen and its relation to the mandibular premolar teeth...
June 2016: Journal of Clinical and Diagnostic Research: JCDR
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