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https://www.readbyqxmd.com/read/28156207/is-lumbar-facet-fusion-biomechanically-equivalent-to-lumbar-posterolateral-onlay-fusion
#1
Jeffrey M Toth, Kevin T Foley, Mei Wang, Howard B Seim, A Simon Turner
OBJECTIVE This study was designed with the following research objectives: 1) to determine the efficacy of facet fusion with recombinant human bone morphogenetic protein-2 (rhBMP-2) on an absorbable collagen sponge (ACS) in an ovine lumbar facet fusion model; 2) to radiographically and histologically compare the efficacy of lumbar facet fusion with rhBMP-2/ACS to facet fusion with an iliac crest bone graft (ICBG); and 3) to biomechanically compare lumbar facet fusion with rhBMP-2/ACS to lumbar posterolateral fusion (PLF) with ICBG...
February 3, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28149345/within-session-stability-of-short-term-heart-rate-variability-measurement
#2
Lukas Cipryan
The primary aim of this study was to assess the retest stability of the short-term heart rate variability (HRV) measurement performed within one session and without the use of any intervention. Additionally, a precise investigation of the possible impact of intrinsic biological variation on HRV reliability was also performed. First, a single test-retest HRV measurement was conducted with 20-30 min apart from one another. Second, the HRV measurement was repeated in ten non-interrupted consecutive intervals. The lowest typical error (CV = 21...
April 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28146019/analysis-of-risk-factors-for-major-complications-following-elective-posterior-lumbar-fusion
#3
John Di Capua, Sulaiman Somani, Jun S Kim, Kevin Phan, Nathan J Lee, Parth Kothari, Samuel K Cho
STUDY DESIGN: Retrospective study of prospectively collected data. OBJECTIVE: To identify risk factors for the development of any major complication following elective posterior lumbar fusion (PLF). SUMMARY OF BACKGROUND DATA: Posterior lumbar fusion is one of the most performed fusion techniques with utilization rates increasing by 356% between 1993 and 2001. Surgical and anesthetic advances have made the option of surgery more accessible for elderly patients with a larger comorbidity burden...
January 31, 2017: Spine
https://www.readbyqxmd.com/read/28076263/-a-paradox-persists-when-the-paradigm-is-wrong-pisacano-scholars-reflections-from-the-inaugural-starfield-summit
#4
Noemi Doohan, Anastasia J Coutinho, Jennifer Lochner, Diana Wohler, Jennifer DeVoe
The inaugural Starfield Summit was hosted in April 2016 by the Robert Graham Center for Policy Studies in Family Medicine and Primary Care with additional partners and sponsors, including the Pisacano Leadership Foundation (PLF). The Summit addressed critical topics in primary care and health care delivery, including payment, measurement, and team-based care. Invited participants included an interdisciplinary group of pediatricians, family physicians, internists, behaviorists, trainees, researchers, and advocates...
November 2016: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28072800/modified-percutaneous-lumbar-foraminoplasty-and-percutaneous-endoscopic-lumbar-discectomy-instrument-design-technique-notes-and-5-years-follow-up
#5
Zhen-Zhou Li, Shu-Xun Hou, Wei-Lin Shang, Ke-Ran Song, Hong-Liang Zhao
BACKGROUND: Conventional percutaneous endoscopic lumbar discectomy (PELD) with an "inside-outside" technique has 4.3% - 10.3% surgical failure rate, especially in central herniated discs (HDs), migrated HDs, and axillary type HDs. PELD with foraminoplasty has been used for complex HDs. Percutaneous lumbar foraminoplasty (PLF), which is performed with a trephine or bone reamer introduced over a guidewire without a protective working cannula in the original Tessys technique, can quickly cut the hypertrophied bony structure under fluoroscopic guidance, and risk injury to the exiting and traversing nerve roots...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28038691/strain-in-posterior-instrumentation-resulted-by-different-combinations-of-posterior-and-anterior-devices-for-long-spine-fusion-constructs
#6
Christopher J Kleck, Damian Illing, Emily M Lindley, Andriy Noshchenko, Vikas V Patel, Cameron Barton, Todd Baldini, Christopher M J Cain, Evalina L Burger
STUDY DESIGN: Clinically related experimental study. OBJECTIVE: Evaluation of strain in posterior low lumbar and spinopelvic instrumentation for multilevel fusion resulting from the impact of such mechanical factors as physiologic motion, different combinations of posterior and anterior instrumentation, and different techniques of interbody device implantation. SUMMARY OF BACKGROUND DATA: Currently different combinations of posterior and anterior instrumentation as well as surgical techniques are used for multilevel lumbar fusion...
January 2017: Spine Deformity
https://www.readbyqxmd.com/read/27994793/bone-union-rate-following-instrumented-posterolateral-lumbar-fusion-comparison-between-demineralized-bone-matrix-versus-hydroxyapatite
#7
Woo Dong Nam, Jemin Yi
STUDY DESIGN: Retrospective study. PURPOSE: To compare the union rate of posterolateral lumbar fusion (PLF) using demineralized bone matrix (DBM) versus hydroxyapatite (HA) as bone graft extender. OVERVIEW OF LITERATURE: To our knowledge, there has been no clinical trial to compare the outcomes of DBM versus HA as a graft material for PLF. METHODS: We analyzed prospectively collected data from consecutive 79 patients who underwent instrumented PLF...
December 2016: Asian Spine Journal
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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