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Injury of high strain rate

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https://www.readbyqxmd.com/read/29162240/influence-of-gap-size-screw-configuration-and-nail-materials-in-the-stability-of-anterograde-reamed-intramedullary-nail-in-femoral-transverse-fractures
#1
Sergio Gabarre, Jorge Albareda, Luis Gracia, Sergio Puértolas, Elena Ibarz, Antonio Herrera
Femoral shaft fractures are among the most severe injuries of the skeleton. They are associated with high morbidity and mortality. The most appropriate treatment depending on the type of fracture and location level should be chosen. A finite element model of the femur has been developed, analyzing various types of fractures in the subtrochanteric and diaphyseal supracondylar area, with several gap sizes, being stabilized with a single combination of screws for the intramedullary nail. The mechanical strength of the nail against bending and compression efforts was studied comparing two materials for the nail: stainless steel and titanium alloy...
November 2017: Injury
https://www.readbyqxmd.com/read/29115945/mechanical-strain-to-maxillary-incisors-during-direct-laryngoscopy
#2
Milo Engoren, Lauryn R Rochlen, Matthew V Diehl, Sarah S Sherman, Elizabeth Jewell, Mary Golinski, Paul Begeman, John M Cavanaugh
BACKGROUND: While most Direct laryngoscopy leads to dental injury in 25-39% of cases. Dental injury occurs when the forces and impacts applied to the teeth exceed the ability of the structures to dissipate energy and stress. The purpose of this study was to measure strain, (which is the change produced in the length of the tooth by a force applied to the tooth) strain rate, and strain-time integral to the maxillary incisors and determine if they varied by experience, type of blade, or use of an alcohol protective pad (APP)...
November 7, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/29091888/oroxylin-a-suppresses-influenza-a-virus-replication-correlating-with-neuraminidase-inhibition-and-induction-of-ifns
#3
Jing Jin, Shuo Chen, Dechuan Wang, Yuanjin Chen, Yuxu Wang, Min Guo, Changlin Zhou, Jie Dou
Because it is highly contagious, the influenza A virus (IAV) has the potential to cause pandemics in humans. The emergence of drug-resistant strains requires the development of new chemical therapeutics. Oroxylin A (OA) is a flavonoid which has been shown to have antioxidant and antitumor effects. However, intensive studies in which OA fights against different influenza virus strains and the underlying antiviral mechanisms have not been reported. In our study, the antiviral activities in cells and in mice, the preliminary mechanisms of OA were investigated...
October 27, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29073840/a-novel-apparatus-measuring-knee-flexor-strength-during-various-hamstring-exercises-a-reliability-and-retrospective-study
#4
Jack T Hickey, Peter F Hickey, Nirav Maniar, Ryan G Timmins, Morgan D Williams, Christian A Pitcher, David A Opar
Study Design Reliability and case-control injury study. Background Knee flexor strength is a key variable when dealing with hamstring strain injury (HSI) and methodologies of objective measurement are often limited to single exercises. Objectives To establish test re-test reliability of a novel apparatus measuring knee flexor strength during various hamstring exercises; to investigate whether these measures detect between-leg differences in males with and without history of unilateral HSI. Methods Twenty males without and ten males with previous unilateral HSI participated...
October 26, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29061984/region-and-species-dependent-mechanical-properties-of-adolescent-and-young-adult-brain-tissue
#5
David B MacManus, Baptiste Pierrat, Jeremiah G Murphy, Michael D Gilchrist
Traumatic brain injuries, the leading cause of death and disability in children and young adults, are the result of a rapid acceleration or impact of the head. In recent years, a global effort to better understand the biomechanics of TBI has been undertaken, with many laboratories creating detailed computational models of the head and brain. For these models to produce realistic results they require accurate regional constitutive data for brain tissue. However, there are large differences in the mechanical properties reported in the literature...
October 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29051332/parenchymal-strain-heterogeneity-during-oscillatory-ventilation-why-two-frequencies-are-better-than-one
#6
Jacob Herrmann, Merryn H Tawhai, David W Kaczka
High frequency oscillatory ventilation (HFOV) relies on low tidal volumes cycled at supraphysiologic rates, producing fundamentally different mechanisms for gas transport and exchange compared with conventional mechanical ventilation. Despite the appeal of using low tidal volumes to mitigate the risks of ventilator-induced lung injury (VILI), HFOV has not improved mortality for most clinical indications. This may be due to non-uniform and frequency-dependent distribution of flow throughout the lung. The goal of this study was to compare parenchymal strain heterogeneity during eucapnic HFOV when using oscillatory waveforms that consisted of either a single discrete frequency or two simultaneous frequencies...
October 19, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29048928/epidemiology-of-shoulder-and-elbow-injuries-among-united-states-high-school-baseball-players-school-years-2005-2006-through-2014-2015
#7
Michael G Saper, Lauren A Pierpoint, Wei Liu, R Dawn Comstock, John D Polousky, James R Andrews
BACKGROUND: Shoulder and elbow injuries are common in young athletes, especially high school baseball players. Understanding the risk factors associated with baseball injuries is an essential first step in the development of injury prevention strategies. PURPOSE: To provide a comprehensive understanding of the epidemiology of shoulder and elbow injuries among high school baseball players in the United States. STUDY DESIGN: Descriptive epidemiological study...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29043832/high-frequency-oscillation-for-adult-patients-with-acute-respiratory-distress-syndrome-a-systematic-review-and-meta-analysis
#8
Ewan Goligher, Laveena Munshi, Neill Kj Adhikari, Maureen O Meade, Carol Hodgson, Hannah Wunsch, Elizabeth Uleryk, Ognjen Gajic, Marcelo Amato, Niall D Ferguson, Gordon D Rubenfeld, Eddy Fan
RATIONALE: By minimizing tidal lung strain and maintaining alveolar recruitment, high frequency oscillatory ventilation (HFOV) may protect against ventilator-induced lung injury. OBJECTIVES: To summarize the current evidence in support of the use of HFOV in adult patients with ARDS. METHODS: We conducted a systematic review and meta-analysis of randomized trials comparing mortality rates with the use of HFOV vs. conventional mechanical ventilation for adult patients with acute respiratory distress syndrome...
October 18, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28952868/comparison-of-thigh-muscle-strain-occurrence-and-injury-patterns-between-male-and-female-high-school-soccer-athletes
#9
Kevin M Cross, Kelly K Gurka, Susan Saliba, Mark Conaway, Jay Hertel
CONTEXT: Thigh muscles strains are among the most common injuries in high school soccer for both males and females. Similar results have been reported among collegiate soccer players, specifically for hamstring strains. In collegiate soccer, males have a higher injury rate than women although they share common injury characteristics. Currently, no studies exist comparing the injury rate or injury characteristics of thigh muscle strains between sexes playing high school soccer. OBJECTIVE: To compare thigh muscle strain injury rates and injury event characteristics among sexes participating in high school soccer...
September 27, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28888435/resuscitation-and-growth-kinetics-of-sub-lethally-injured-listeria-monocytogenes-strains-following-fluorescence-activated-cell-sorting-facs
#10
Thulani Sibanda, Elna M Buys
This study investigated the effect of acid (pH4.2), osmotic (10% NaCl) and heat (55°C for 30min) stress induced injury on Listeria monocytogenes strains ATCC19115, 69, 159/10 and 243 using differential plating and flow cytometry coupled with membrane integrity indicators, thiazole orange (TO) and propidium iodide (PI) staining. Growth kinetics of injured cells sorted by fluorescence activated cell sorting (FACS) were studied at 4, 25 and 37°C. The percentage of cell injury detectable by both flow cytometry and differential plating varied significantly among strains and stress treatments (p<0...
October 2017: Food Research International
https://www.readbyqxmd.com/read/28884476/probiotics-for-preventing-urinary-tract-infection-in-people-with-neuropathic-bladder
#11
REVIEW
Swee-Ling Toh, Claire L Boswell-Ruys, Bon San B Lee, Judy M Simpson, Kate R Clezy
BACKGROUND: Neuropathic or neurogenic bladder describes a process of dysfunctional voiding as the result of injury in the brain, spinal cord or nerves innervating the bladder. People with neuropathic bladder, such as from spinal cord injury (SCI), are at significant risk of morbidity from urinary tract infections (UTI). Effective methods to prevent UTI in people with SCI have been sought for many years. Probiotics (micro-organisms that exert beneficial health effects in the host) have been recommended for bacterial interference of the urological tract to reduce colonisation by uropathogen and to manage the dual problems of infection and antibiotic resistance...
September 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28878888/cardiovascular-and-thermal-strain-during-3-4%C3%A2-days-of-a-metabolically-demanding-cold-weather-military-operation
#12
John W Castellani, Marissa G Spitz, Anthony J Karis, Svein Martini, Andrew J Young, Lee M Margolis, J Phillip Karl, Nancy E Murphy, Xiaojiang Xu, Scott J Montain, Jamie A Bohn, Hilde K Teien, Pål H Stenberg, Yngvar Gundersen, Stefan M Pasiakos
BACKGROUND: Cardiovascular (CV) and thermal responses to metabolically demanding multi-day military operations in extreme cold-weather environments are not well described. Characterization of these operations will provide greater insights into possible performance capabilities and cold injury risk. METHODS: Soldiers from two cold-weather field training exercises (FTX) were studied during 3-day (study 1, n = 18, age: 20 ± 1 year, height: 182 ± 7 cm, mass: 82 ± 9 kg) and 4-day (study 2, n = 10, age: 20 ± 1 year, height: 182 ± 6 cm, mass: 80...
2017: Extreme Physiology & Medicine
https://www.readbyqxmd.com/read/28859497/first-report-of-coexistence-of-ampc-beta-lactamase-genes-in-klebsiella-pneumoniae-strains-isolated-from-burn-patients
#13
Roya Ghanavati, Davood Darban-Sarokhalil, Fateme Navab-Moghadam, Hossein Kazemian, Gholamreza Irajian, Shabnam Razavi
Klebsiella spp. are among the most frequently isolated bacteria from burn wounds. These organisms are among the most important opportunistic pathogens, causing hospital-acquired and healthcare-associated infections worldwide. Limited information is available about prevalence of AmpC-producing Klebsiella pneumoniae from burn patients. Therefore, the aim of this study was to determine the characterization of AmpC beta-lactamase among K. pneumoniae isolated from burn patients. Samples were collected from wound specimens of patients with burn injury from a burn hospital in Tehran during 18 months (March 2015 to August 2016)...
September 1, 2017: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/28829198/injuries-in-taekwando-systematic-review
#14
Roger E Thomas, Bennett C Thomas, Marcus M Vaska
OBJECTIVES: Assess rates/1000athletic encounters(AE) in Taekwondo of injuries/age/gender/type/location. METHODS: Searches in 17 electronic, 7 grey-literature databases. Two researchers independently assessed Abstracts/titles and abstracted data. Risk-of-bias assessed with Newcastle-Ottawa scale. Rates/1000AE computed, weighted by study sizes. RESULTS: Eighteen studies included 3 Olympic, 4 world, 1 European, 13 national, 10 provincial and one national school competition...
September 8, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28825878/injuries-in-australian-rules-football-an-overview-of-injury-rates-patterns-and-mechanisms-across-all-levels-of-play
#15
Richard Saw, Caroline F Finch, David Samra, Peter Baquie, Tanusha Cardoso, Danielle Hope, John W Orchard
CONTEXT: The nature of Australian rules football (Australian football) predisposes both unique and common injuries compared with those sustained in other football codes. The game involves a combination of tackling, kicking, high-speed running (more than other football codes), and jumping. Two decades of injury surveillance has identified common injuries at the professional level (Australian Football League [AFL]). OBJECTIVE: To provide an overview of injuries in Australian rules football, including injury rates, patterns, and mechanisms across all levels of play...
August 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28763905/-analysis-of-drug-resistance-of-acinetobacter-baumannii-in-wound-of-children-with-traffic-injury-and-its-relationship-with-antibiotic-use
#16
S Liu, C Wang, Y X Fu
Objective: To know the drug resistance of Acinetobacter baumannii (AB) in wound of children with traffic injury and its relationship with antibiotic use. Methods: Wound exudate of 226 children with traffic injury admitted to our unit from January 2010 to December 2015 were collected. API bacteria identification panels and fully automatic microbiological identification system were used to identify pathogens. Kirby-Bauer paper disk diffusion method was used to detect the drug resistance of pathogens to 18 antibiotics including amoxycillin/clavulanic acid, piperacillin/tazobactam, and imipenem...
July 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28745561/epidemiology-of-hip-flexor-and-hip-adductor-strains-in-national-collegiate-athletic-association-athletes-2009-2010-2014-2015
#17
Timothy G Eckard, Darin A Padua, Thomas P Dompier, Sara L Dalton, Kristian Thorborg, Zachary Y Kerr
BACKGROUND: Little research has examined the rates and patterns of hip flexor or hip adductor strains in student-athletes in the National Collegiate Athletic Association (NCAA). PURPOSE: To describe the epidemiology of hip flexor and adductor strains in NCAA athletes during the 2009/2010-2014/2015 academic years. STUDY DESIGN: Descriptive epidemiology study. METHODS: Rates and patterns of hip flexor and adductor strains in collegiate sports were examined in a convenience sample of NCAA varsity teams from 25 sports...
October 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28735552/a-prospective-study-on-the-effect-of-sport-specialization-on-lower-extremity-injury-rates-in-high-school-athletes
#18
Timothy A McGuine, Eric G Post, Scott J Hetzel, M Alison Brooks, Stephanie Trigsted, David R Bell
BACKGROUND: Sport specialization is associated with an increased risk of musculoskeletal lower extremity injuries (LEIs) in adolescent athletes presenting in clinical settings. However, sport specialization and the incidence of LEIs have not been investigated prospectively in a large population of adolescent athletes. PURPOSE: To determine if sport specialization was associated with an increased risk of LEIs in high school athletes. STUDY DESIGN: Cohort study; Level of evidence, 2...
October 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28727627/associations-of-organizational-safety-practices-and-culture-with-physical-workload-perceptions-about-work-and-work-related-injury-and-symptoms-among-hospital-nurses
#19
Soo-Jeong Lee, Joung Hee Lee
OBJECTIVE: The study aim was to examine the relationships of organizational safety practices with nurses' perceptions about job and risk and experiences of work-related injury and symptoms. BACKGROUND: Nursing professions report high rates of work-related injuries. Organizational safety practices have been linked to workers' safety outcomes and perceptions about work. METHODS: This study analyzed data from a random sample of 280 California RNs in a cross-sectional statewide survey...
July 2017: Journal of Nursing Administration
https://www.readbyqxmd.com/read/28714762/effectiveness-of-prp-injection-in-reducing-recovery-time-of-acute-hamstring-injury-a-critically-appraised-topic
#20
Mary Lynn Manduca, Stephen J Straub
Clinical Scenario Hamstring strains are common athletic injuries, with a high recurrence rate (34%).(2) Recently, platelet-rich-plasma (PRP) injections have gained popularity as a potential treatment option to accelerate healing of hamstring injury.(3) Focused Clinical Question Does the combination of PRP injection and rehabilitation decrease recovery time of acute hamstring injury as compared to rehabilitation alone in collegiate athletes? Summary of Key Findings A literature search resulted in three randomized controlled trials (RCT)...
July 17, 2017: Journal of Sport Rehabilitation
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