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https://www.readbyqxmd.com/read/28943193/epidemiology-of-musculoskeletal-injuries-sustained-by-naval-special-forces-operators-and-students
#1
Mita Lovalekar, Katherine A Perlsweig, Karen A Keenan, Thomas M Baldwin, Michael Caviston, Anne E McCarthy, Jeffrey J Parr, Bradley C Nindl, Kim Beals
OBJECTIVES: The aim of this analysis was to describe the incidence and common types of medical chart-reviewed musculoskeletal injuries, among four distinct groups of Naval Special Warfare (NSW) personnel: Sea, Air, and Land (SEAL) Operators, SEAL Qualification Training (SQT) students, Special Warfare Combatant-craft Crewman (SWCC) Operators, and Crewman Qualification Training (CQT) students. DESIGN: Descriptive cross-sectional study. METHODS: Medical records were reviewed for 920 NSW personnel...
September 9, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28941762/analysis-of-the-relationship-between-the-facet-fluid-sign-and-lumbar-spine-motion-of-degenerative-spondylolytic-segment-using-kinematic-mri
#2
Dalin Wang, Haifeng Yuan, An Liu, Changqing Li, Kaixiang Yang, Shengnai Zheng, Liming Wang, Jeffrey C Wang, Zorica Buser
To investigate the relationship between the facet fluid sign (FFS) and kinematics of affected lumbar segment in patients with low-grade, single-level lumbar degenerative spondylolisthesis using kinematic magnetic resonance imaging (kMRI).Materials and methods Ninety-two patients diagnosed with low-grade (Grade 1 or 2), single level lumbar degenerative spondylolisthesis L3 to S1. Angular and translational motion, whole lumbar motion, slip percentage, and facet angle were measured. Disc degeneration and degrees of osteoarthritis were graded, facet effusion was evaluated and classified as Positive or Negative FFS (PosFFS or NegFFS)...
September 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28940048/validity-and-reliability-of-clinical-prediction-rules-used-to-screen-for-cervical-spine-injury-in-alert-low-risk-patients-with-blunt-trauma-to-the-neck-part-2-a-systematic-review-from-the-cervical-assessment-and-diagnosis-research-evaluation-cadre-collaboration
#3
REVIEW
N Moser, N Lemeunier, D Southerst, H Shearer, K Murnaghan, D Sutton, P Côté
PURPOSE: To update findings of the 2000-2010 Bone and Joint Decade Task Force on Neck Pain and its Associated Disorders (Neck Pain Task Force) on the validity and reliability of clinical prediction rules used to screen for cervical spine injury in alert low-risk adult patients with blunt trauma to the neck. METHODS: We searched four databases from 2005 to 2015. Pairs of independent reviewers critically appraised eligible studies using the modified QUADAS-2 and QAREL criteria...
September 22, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28939859/cortical-up-states-induce-the-selective-weakening-of-subthreshold-synaptic-inputs
#4
Julian Bartram, Martin C Kahn, Simon Tuohy, Ole Paulsen, Tony Wilson, Edward O Mann
Slow-wave sleep is thought to be important for retuning cortical synapses, but the cellular mechanisms remain unresolved. During slow-wave activity, cortical neurons display synchronized transitions between depolarized Up states and hyperpolarized Down states. Here, using recordings from LIII pyramidal neurons from acute slices of mouse medial entorhinal cortex, we find that subthreshold inputs arriving during the Up state undergo synaptic weakening. This does not reflect a process of global synaptic downscaling, as it is dependent on presynaptic spiking, with network state encoded in the synaptically evoked spine Ca(2+) responses...
September 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28938147/development-of-an-experimental-model-of-burst-fracture-with-damage-characterization-of-the-vertebral-bodies-under-dynamic-conditions
#5
A Germaneau, T Vendeuvre, M Saget, P Doumalin, J C Dupré, F Brémand, F Hesser, C Brèque, P Maxy, M Roulaud, O Monlezun, P Rigoard
BACKGROUND: Burst fractures represent a significant proportion of fractures of the thoracolumbar junction. The recent advent of minimally invasive techniques has revolutionized the surgical treatment of this type of fracture. However mechanical behaviour and primary stability offered by these solutions have to be proved from experimental validation tests on cadaveric specimens. Therefore, the aim of this study was to develop an original and reproducible model of burst fracture under dynamic impact...
September 13, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28937466/compressive-myelopathy-in-congenital-kyphosis-of-the-upper-thoracic-spine-a-retrospective-study-of-6-cases
#6
Zhengfeng Zhang, Honggang Wang, Wenjie Zheng
STUDY DESIGN: A retrospective study. OBJECTIVE: The goal of this retrospective study was to describe the uncommon presentation of neurological deficits in patients with congenital kyphosis of the upper thoracic spine (T1-T4). SUMMARY OF BACKGROUND DATA: Congenital kyphosis is an uncommon deformity but can potentially lead to spinal cord compression and paraplegia, particularly in type I (failure of formation) deformities. Few reports have described compressive myelopathy associated with congenital kyphosis of the upper thoracic spine...
October 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28937458/transpedicular-corpectomy-and-cage-placement-in-the-treatment-of-traumatic-lumbar-burst-fractures
#7
Martin H Pham, Alexander Tuchman, Thomas C Chen, Frank L Acosta, Patrick C Hsieh, John C Liu
STUDY DESIGN: Retrospective review. OBJECTIVE: To review the feasibility of a posterior-only approach for instrumented reconstruction in lumbar burst fractures. BACKGROUND: Burst fractures of the lumbar spine have been treated through a variety of techniques, including anterior, posterior, or combined approaches. Here we review series of patients undergoing posterior-only transpedicular corpectomy with instrumented fusion for traumatic lumbar burst fracture...
October 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28937454/life-expectancy-and-metastatic-spine-scoring-systems-an-academic-institutional-experience
#8
Brian T Ragel, Gustavo A Mendez, Justin Reddington, David Ferachi, Charlotte D Kubicky, Travis C Philipp, Natalie L Zusman, Paul Klimo, Robert Hart, Jung Yoo, Alex C Ching
STUDY DESIGN: A retrospective data collection study with application of metastatic spine scoring systems. OBJECTIVES: To apply the Tomita and revised Tokuhashi scoring systems to a surgical cohort at a single academic institution and analyze spine-related surgical morbidity and mortality rates. SUMMARY OF BACKGROUND DATA: Surgical management of metastatic spine patients requires tools that can accurately predict patient survival, as well as knowledge of morbidity and mortality rates...
October 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28936598/the-impact-of-the-new-national-bone-health-alliance-nbha-diagnostic-criteria-on-the-prevalence-of-osteoporosis-in-the-united-states-supplementary-presentation
#9
N C Wright, K G Saag, B Dawson-Hughes, S Khosla, E S Siris
We evaluated the prevalence of osteoporosis using the osteoporosis diagnostic criteria developed by the National Bone Health Alliance (NBHA), which includes qualified fractures, FRAX score in addition to BMD. The expanded definition increases the prevalence compared to BMD alone definitions; however, it may better identify those at elevated fracture risk. Recently an NBHA working Group published a paper in OI with recommendations for expanding the criteria that would constitute an osteoporosis diagnosis in postmenopausal women and in men over age 50 for use in the US - Siris et al...
September 21, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28934448/cervical-spine-deformity-part-2-management-algorithm-and-anterior-techniques
#10
Lee A Tan, K Daniel Riew, Vincent C Traynelis
A sound operative plan based on solid understanding of the pathology and biomechanics is the most important part of cervical deformity correction. Many different surgical options exist for operative management of cervical spine deformities. However, selecting the correct approach that ensures the optimal clinical outcome can be challenging and often controversial. In Part 2 of this three-part review series, we discuss the pre-operative planning, management algorithm, and anterior surgical techniques for cervical deformity correction...
October 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28934313/characterization-of-pathogenic-enterococcus-cecorum-from-different-poultry-groups-broiler-chickens-layers-turkeys-and-waterfowl
#11
Beata Dolka, Dorota Chrobak-Chmiel, Michał Czopowicz, Piotr Szeleszczuk
Enterococcus cecorum (EC) is known as a commensal in the intestines of mammals and birds. However, it has been described as an emerging pathogen in poultry industry worldwide. The aim of this study was to analyze and compare EC isolated from clinical material collected from poultry groups with different production purposes. The genetic diversity among pathogenic EC in relation to each specific poultry type was examined. In total, 148 isolates from independent infection outbreaks (2011-2016) were used: 76 broiler chickens (CB), 37 broiler breeders (BB), 23 layers (CL), 7 waterfowl (W) and 5 turkey (T) flocks (1 isolate/1 flock)...
2017: PloS One
https://www.readbyqxmd.com/read/28929566/protracted-dendritic-growth-in-the-typically-developing-human-amygdala-and-increased-spine-density-in-young-asd-brains
#12
R K Weir, M D Bauman, B Jacobs, C M Schumann
The amygdala is a medial temporal lobe structure implicated in social and emotional regulation. In typical development (TD), the amygdala continues to increase volumetrically throughout childhood and into adulthood, while other brain structures are stable or decreasing in volume. In autism spectrum disorder (ASD), the amygdala undergoes rapid early growth, making it volumetrically larger in children with ASD compared to TD children. Here we explore: 1) if dendritic arborization in the amygdala follows the pattern of protracted growth in TD and early overgrowth in ASD and 2), if spine density in the amygdala in ASD cases differs from TD from youth to adulthood...
September 20, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28928500/a-rare-case-of-eagle-syndrome-and-diffuse-idiopathic-skeletal-hyperostosis-in-the-cervical-spine
#13
Peter C Emary, Marshall Dornink, John A Taylor
Published case studies involving diffuse idiopathic skeletal hyperostosis (DISH) along with symptomatic ossification of the stylohyoid ligament, or "Eagle syndrome," are rare. In this report, we document a case of bilateral Eagle syndrome and advanced DISH in the cervical spine of an 80-year-old man who presented with severe neck stiffness and intermittent asphyxia. The key imaging and clinical features of this disorder are also described.
August 2017: Journal of the Canadian Chiropractic Association
https://www.readbyqxmd.com/read/28928499/high-grade-spondylolytic-spondylolisthesis
#14
Peter C Emary, Stefan A Eberspaecher, John A Taylor
Case reports of high-grade spondylolisthesis have been rarely published in the chiropractic literature. Documented here is a case involving a 28-year-old woman who presented to the World Spine Care clinic in the Dominican Republic with minimal neuromusculoskeletal symptoms despite a grade 4 spondylolytic spondylolisthesis. The key imaging and etiological features of this clinical disorder are presented.
August 2017: Journal of the Canadian Chiropractic Association
https://www.readbyqxmd.com/read/28927917/impact-of-active-leisure-non-competitive-contact-sports-activities-on-space-available-for-cord-sac-of-sub-axial-cervical-spine-of-asymptomatic-adults
#15
Chika Anele Ndubuisi, Samuel C Ohaegbulam, Wilfred C Mezue
BACKGROUND: Leisure sports activities are assumed to be safe. It is however possible that participation in contact sports as leisure activity may also affect the SAC. AIM: compare SAC of asymptomatic young adults involved in active leisure contact sports with matched controls that do not participate in contact sports. METHOD: MRI-based prospective, cross-sectional study involving 204 randomly selected asymptomatic adults, 21-50 years old. Group A participates in active leisure contact sports while group B do not participate in any form of contact sports...
September 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28926652/particulate-or-nonparticulate-steroids-for-lumbar-transforaminal-injections
#16
Byron J Schneider, Zachary L McCormick, Clark C Smith
No abstract text is available yet for this article.
September 1, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28925332/spine-deformity-surgery-in-the-elderly-risk-factors-and-30-day-outcomes-are-comparable-in-posterior-versus-combined-approaches
#17
John K Yue, David C Sing, Sourabh Sharma, Pavan S Upadhyayula, Ethan A Winkler, Jeremy D Shaw, Lionel N Metz
Objectives Risk factors portending poor outcome following elective spine deformity fusion remain in need of characterization and stratification in the elderly population. Methods Cases aged ≥60 years who underwent elective posterior or anterior-posterior ('combined') fusion were extracted from the American College of Surgeons National Surgical Quality Improvement Program years 2007-2013 and analyzed by surgical cohort (posterior vs. combined). The 30-day outcomes included operation time, hospital length of stay (HLOS), perioperative complications, and discharge destination...
September 19, 2017: Neurological Research
https://www.readbyqxmd.com/read/28924236/in-vivo-mouse-and-live-cell-sted-microscopy-of-neuronal-actin-plasticity-using-far-red-emitting-fluorescent-proteins
#18
Waja Wegner, Peter Ilgen, Carola Gregor, Joris van Dort, Alexander C Mott, Heinz Steffens, Katrin I Willig
The study of proteins in dendritic processes within the living brain is mainly hampered by the diffraction limit of light. STED microscopy is so far the only far-field light microscopy technique to overcome the diffraction limit and resolve dendritic spine plasticity at superresolution (nanoscopy) in the living mouse. After having tested several far-red fluorescent proteins in cell culture we report here STED microscopy of the far-red fluorescent protein mNeptune2, which showed best results for our application to superresolve actin filaments at a resolution of ~80 nm, and to observe morphological changes of actin in the cortex of a living mouse...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28924188/dopamine-d1-receptor-subtype-mediates-acute-stress-induced-dendritic-growth-in-excitatory-neurons-of-the-medial-prefrontal-cortex-and-contributes-to-suppression-of-stress-susceptibility-in-mice
#19
R Shinohara, M Taniguchi, A T Ehrlich, K Yokogawa, Y Deguchi, Y Cherasse, M Lazarus, Y Urade, A Ogawa, S Kitaoka, A Sawa, S Narumiya, T Furuyashiki
Dopamine in prefrontal cortices is implicated in cognitive and emotional functions, and the dysfunction of prefrontal dopamine has been associated with cognitive and emotional deficits in mental illnesses. These findings have led to clinical trials of dopamine-targeting drugs and brain imaging of dopamine receptors in patients with mental illnesses. Rodent studies have suggested that dopaminergic pathway projecting to the medial prefrontal cortex (mPFC) suppresses stress susceptibility. Although various types of mPFC neurons express several dopamine receptor subtypes, previous studies neither isolated a role of dopamine receptor subtype nor identified the site of its action in mPFC...
September 19, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28922280/time-demand-and-radiation-dose-in-3d-fluoroscopy-based-navigation-assisted-3d-fluoroscopy-controlled-pedicle-screw-instrumentations
#20
Horst Balling
STUDY DESIGN: Prospective single-center cohort study to record additional time requirements and radiation dose in navigation-assisted O-arm-controlled pedicle screw (PS) instrumentations. OBJECTIVE: To evaluate amount of extra-time and radiation dose for navigation-assisted PS instrumentations of the thoracolumbosacral spine using O-arm 3D-real-time-navigation (O3DN) compared to non-navigated spinal procedures (NNSP) with a single C-arm and postoperative computed tomography (CT) scan for controlling PS positions...
September 15, 2017: Spine
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