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https://www.readbyqxmd.com/read/28436733/social-and-hospital-costs-of-patients-admitted-to-a-university-hospital-in-brazil-due-to-motorcycle-crashes
#1
Katia Campos Dos Anjos, Marcelo Rosa de Rezende, Rames Mattar Júnior
OBJECTIVE: The present study aimed to investigate the social and hospital costs of patients treated at a public hospital who were motorcycle crash victims. METHOD: This prospective study was on 68 motorcycle riders (drivers or passengers), who were followed up from hospital admission to six months after the crash. A questionnaire covering quantitative and qualitative questions was administered. RESULTS: Motorcycle crash victims were responsible for 12% of the institution's hospital admissions; 54...
February 13, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28432999/effect-of-intra-oral-aging-on-t%C3%A2-m-phase-transformation-microstructure-and-mechanical-properties-of-y-tzp-dental-ceramics
#2
Luciana Meireles Miragaya, Renato Bastos Guimarães, Rodrigo Othávio de Assunção E Souza, Glauco Dos Santos Botelho, José Guilherme Antunes Guimarães, Eduardo Moreira da Silva
The aim of the present study was to evaluate the influence of intra-oral aging on the tetragonal-to-monoclinic (t→m) phase transformation of two Y-TZP dental ceramics - Lava Frame (Frame) and Lava Plus (Plus) - and determine the impact of this response on their microstructures and mechanical properties: flexural strength, Young's modulus, microhardness and fracture toughness. Standardized ceramic specimens were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM)...
April 13, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28425455/the-effect-of-hydraulic-flowback-and-produced-water-on-gill-morphology-oxidative-stress-and-antioxidant-response-in-rainbow-trout-oncorhynchus-mykiss
#3
Tamzin A Blewett, Alyssa M Weinrauch, Perrine L M Delompré, Greg G Goss
Hydraulic fracturing fluid are complex mixtures containing high concentrations of salts (up to 330,000 ppm), organic, and metal contaminants. However, little data exist on the potential mechanisms of toxicity of these flowback and produced wastewaters (FPW) on aquatic biota. Juvenile rainbow trout were exposed to either control, FPW (2.5 or 7.5%), FPW that had been treated with activated charcoal (AC), or a custom salt-matched control (SW; replicating only the salt content of FPW) for 48 hours. Gill histology revealed decreases in interlamellar cell mass (ILCM) and mean lamellar length in all treatments (FPW, AC and SW) compared to control, indicative of hyperosmotic stress...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28414985/sharp-and-blunt-force-trauma-concealment-by-thermal-alteration-in-homicides-an-in-vitro-experiment-for-methodology-and-protocol-development-in-forensic-anthropological-analysis-of-burnt-bones
#4
Ioana Macoveciuc, Nicholas Márquez-Grant, Ian Horsfall, Peter Zioupos
Burning of human remains is one method used by perpetrators to conceal fatal trauma and expert opinions regarding the degree of skeletal evidence concealment are often disparate. This experiment aimed to reduce this incongruence in forensic anthropological interpretation of burned human remains and implicitly contribute to the development of research methodologies sufficiently robust to withstand forensic scrutiny in the courtroom. We have tested the influence of thermal alteration on pre-existing sharp and blunt trauma on twenty juvenile sheep radii in the laboratory using an automated impact testing system and an electric furnace...
March 29, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28409216/oral-contraceptive-use-and-fracture-risk-a-retrospective-study-of-12-970-women-in-the-uk
#5
S Dombrowski, L Jacob, P Hadji, K Kostev
In the present retrospective case-control study, we compared 6485 women with fractures and 6485 women without fractures from 135 general practitioner offices in the UK. Women without bone fractures were statistically more likely to have been exposed to oral contraception, depending on their age and therapy duration. INTRODUCTION: The aim of this analysis was to compare the risk of bone fracture in women using hormonal contraception with that in women who have never used hormonal contraception...
April 13, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28403495/-diagnosis-and-therapeutic-management-in-kidney-ureter-and-bladder-trauma
#6
Karin Hirsch, Marco Heinz, Bernd Wullich
Trauma refers to the destruction of tissues or organs by external forces and it is the most common cause of mortality and morbidity in children (1, 2). Injuries of the genitourinary tract may be the result of blunt (falls, sport injuries, motor vehicle accidents and sexual abuse) or penetrating (stab wounds, gun shots, falling onto sharp objects) injuries. The genitourinary tract is significantly injured in 2.9% of paediatric trauma patients 4.In the paediatric population, the kidney is the most affected organ in the genitourinary tract (>60% of all genitourinary tract injuries) 4...
February 2017: Aktuelle Urologie
https://www.readbyqxmd.com/read/28401681/effect-of-dentin-pretreatment-with-potassium-oxalate-a-6-year-follow-up
#7
Isabel Cristina Celerino de Moraes Porto, Joatan Lucas de Sousa Gomes Costa, Marcio Rafael Nascimento da Silva Lopes, Johnnatan Duarte de Freitas, Isabelle Lins Macêdo de Oliveira, Gabriela Queiroz de Melo Monteiro, Marcos Antônio Japiassú Resende Montes
Oxalate-based products are effective against dentine sensitivity and have been studied as an option to improve long-term adhesive bonding strength. Our aim was to evaluate the effect of potassium oxalate on the microtensile bond strength (µTBS) of the dentin/resin interface after 24 h, 1, and 6 years. Dentin on the occlusal surface of 16 human premolars was exposed and etched with 35% phosphoric acid. The teeth were divided into four groups. Two groups received 3% monohydrated potassium oxalate and the following adhesive systems and composites: Adper Scotchbond Multipurpose + FiltekZ350 (3M/ESPE) and Prime & Bond NT + Esthet-X (Dentsply)...
April 12, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28393739/prenatal-exposure-to-vitamin-d-from-fortified-margarine-and-risk-of-fractures-in-late-childhood-period-and-cohort-results-from-222-000-subjects-in-the-d-tect-observational-study
#8
Mina Nicole Händel, Peder Frederiksen, Clive Osmond, Cyrus Cooper, Bo Abrahamsen, Berit L Heitmann
Prenatal low vitamin D may have consequences for bone health. By means of a nationwide mandatory vitamin D fortification programme, we examined the risk of fractures among 10-18-year-old children from proximate birth cohorts born around the date of the termination of the programme. For all subjects born in Denmark during 1983-1988, civil registration numbers were linked to the Danish National Patient Registry for incident and recurrent fractures occurring at ages 10-18 years. Multiplicative Poisson models were used to examine the association between birth cohort and fracture rates...
April 10, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28386411/the-benefit-of-a-tough-skin-bullet-holes-weathering-and-the-preservation-of-heritage
#9
Lisa Mol, M Gomez-Heras, C Brassey, O Green, T Blenkinsop
Projectile damage to building stone is a widespread phenomenon. Sites damaged 100 years ago during the First World War still see daily use, while in a more contemporary setting numerous reports show the damage to buildings in Babylon, Mosul and Palmyra. While research has been carried out on the long-term effects of conflict such as fire damage, little is known about the protracted damage sustained through the impact of bullets, shrapnel and other metal projectiles outside of the field of engineering focused on ceramics and metals...
February 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28383765/new-opportunities-for-fracture-healing-detection-impedance-spectroscopy-measurements-correlate-to-tissue-composition-in-fractures
#10
Monica C Lin, Frank Yang, Safa T Herfat, Chelsea S Bahney, Meir Marmor, Michel M Maharbiz
Accurate evaluation of fracture healing is important for clinical decisions on when to begin weight-bearing and when early intervention is necessary in cases of fracture nonunion. While the stages of healing involving hematoma, cartilage, trabecular bone, and cortical bone have been well characterized histologically, physicians typically track fracture healing by using subjective physical examinations and radiographic techniques that are only able to detect mineralized stages of bone healing. This exposes the need for a quantitative, reliable technique to monitor fracture healing, and particularly to track healing progression during the early stages of repair...
April 6, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28383147/radiopaque-images-resembling-obturated-root-canals
#11
Calvin Y Shiroma
The practice of endodontics, while not as common as today, was performed during the WWII era. Some of the materials used to fill canals during this time period include gutta-percha, calcium hydroxide, gold foil, and silver points. In this case study, fissures and fractures were present on the exposed root surfaces of the dental remains. Radiographs of the dental remains revealed canal systems similar to those obturated with a paste or semi-solid material. The root surface defects appear to be the access point for the radiopaque material...
April 6, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28370356/changes-in-bone-mineral-density-body-composition-vitamin-d-status-and-mineral-metabolism-in-urban-hiv-positive-south-african-women-over-12-months
#12
Matthew M Hamill, John M Pettifor, Kate A Ward, Shane A Norris, Ann Prentice
HIV infection and antiretroviral therapy (ART) are associated with bone loss and poor vitamin D status in Caucasian populations, though their relative roles are not known. No previous studies have examined longitudinal changes in areal bone mineral density (aBMD), measured by DXA, or in vitamin D status in HIV-positive African women. Of 247 premenopausal, urban, black African women from Soweto, South Africa, initially recruited, 187 underwent anthropometry, DXA scanning and blood and urine collections at both baseline and 12 months...
April 1, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28368468/chronic-mild-stress-causes-bone-loss-via-an-osteoblast-specific-glucocorticoid-dependent-mechanism
#13
Holger Henneicke, Jingbao Li, Sarah Kim, Sylvia J Gasparini, Markus J Seibel, Hong Zhou
Chronic stress and depression are associated with alterations in the hypothalamic-pituitary-adrenal signalling cascade and considered a risk factor for bone loss and fractures. However, the mechanisms underlying the association between stress and poor bone health are unclear. Utilising a transgenic (tg) mouse model in which glucocorticoid signalling is selectively disrupted in mature osteoblasts and osteocytes (HSD2OB-tg mice), the current study examines the impact of chronic stress on skeletal metabolism and structure...
March 22, 2017: Endocrinology
https://www.readbyqxmd.com/read/28367685/researching-people-who-are-bereaved
#14
Ashleigh E Butler, Beverley Copnell, Helen Hall
Conducting qualitative research, especially in areas considered 'sensitive', presents many challenges. The processes involved in such research often expose both participants and the research team to a vast array of risks, which may cause damage to their personal, professional, social and cultural worlds. Historically, these risks have been considered independent of each other, with most studies exploring only the risks to participants or only risks to researchers. Additionally, most researchers only consider risks during data collection, frequently overlooking risks that might be present during other phases of the research project...
January 1, 2017: Nursing Ethics
https://www.readbyqxmd.com/read/28336251/distal-extension-of-the-anterior-approach-to-the-hip-using-the-femoral-interbundle-technique-surgical-technique-and-case-series
#15
Stijn G M Ghijselings, Ronald Driesen, Jean-Pierre Simon, Kristoff Corten
BACKGROUND: The direct anterior approach (DAA) is becoming more popular as the standard surgical approach for primary total hip arthroplasty. However, it has been associated with an increased incidence of intraoperative femoral fractures in particular during the learning curve. Distal extension of the approach may be needed in case of intraoperative complications. The aim of the present study is to describe the distal extension of the DAA using the femoral interbundle technique. METHODS: A stepwise approach based on a cadaveric study to extend the DAA distally is presented...
February 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28323767/how-to-get-to-the-distal-posterior-tibial-malleolus-a-cadaveric-anatomic-study-defining-the-access-corridors-through-3-different-approaches
#16
Mathieu Assal, Miki Dalmau-Pastor, Adrien Ray, Richard Stern
OBJECTIVE: Our objective is to review the anatomy and exposure of the posterior column and posterior tibial malleolus (the posterior tibial plafond) by defining the access corridors through 3 different approaches-posteromedial, posterolateral, and modified posteromedial. METHODS: Cadaveric dissection with percentage of posterior tibial malleolus exposed, and strain gauge measurements to evaluate traction on the neurovascular bundle. RESULTS: The 3 different approaches are applicable for exposure of different portions of the distal posterior tibial malleolus...
April 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28298228/is-transport-distance-correlated-with-animal-welfare-and-carcass-quality-of-reindeer-rangifer-tarandus-tarandus
#17
Sauli Laaksonen, Pikka Jokelainen, Jyrki Pusenius, Antti Oksanen
BACKGROUND: Slaughter reindeer are exposed to stress caused by gathering, handling, loading and unloading, and by conditions in vehicles during transport. These stress factors can lead to compromised welfare and trauma such as bruises or fractures, aspiration of rumen content, and abnormal odour in carcasses, and causing condemnations in meat inspection and lower meat quality. We investigated the statistical association of slaughter transport distance with these indices using meat inspection data from years 2004-2016, including inspection of 669,738 reindeer originating from Finnish reindeer herding areas...
March 15, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28294326/investigation-of-fatigue-crack-initiation-facets-in-ti-6al-4v-using-focused-ion-beam-milling-and-electron-backscatter-diffraction
#18
J Everaerts, B Verlinden, M Wevers
In the very high cycle fatigue regime, internal crack initiation can occur in Ti-6Al-4V because of the formation of facets, which are α grains that have fractured in a transcrystalline and planar manner. Because this crack initiation phase occupies most of the fatigue life, it is essential to understand which mechanisms lead to facet formation. Fatigue tests have been performed on drawn and heat-treated Ti-6Al-4V wires, and the facets at internal crack initiation sites have been analysed in detail in terms of their appearance, their spatial orientation and their crystallographic orientation...
March 15, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28291432/comparison-of-non-compression-and-compression-interlocking-intramedullary-nailing-in-rabbit-femoral-shaft-osteotomy-model
#19
Mehmet Emre Baki, Cengiz Aldemir, Fatih Duygun, Ali Doğan, Gökçen Kerimoğlu
OBJECTIVES: This study aims to compare non-compression and compression intramedullary nailing in an experimental femoral shaft osteotomy model in terms of radiological, histological, and biomechanical aspects. MATERIALS AND METHODS: Twenty-four white New Zealand rabbits (average weight 4.3 kg; range 4 to 4.8 kg) were divided into three groups. A right femoral osteotomy was performed in all rabbits and all femurs were fixed with titanium compression interlocking intramedullary nail...
April 2017: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/28280873/radial-nerve-palsy-in-humeral-shaft-fractures-with-internal-fixation-analysis-of-management-and-outcome
#20
T R Schwab, P F Stillhard, S Schibli, M Furrer, C Sommer
INTRODUCTION: The incidence of radial nerve injury after humeral shaft fractures is on average 11.8% (Shao et al., J Bone Jt Surg Br 87(12):1647-1652, 2005) representing the most common peripheral nerve injury associated with long bone fractures (Korompilias et al., Injury, 2013). The purpose of this study was to analyze our current policy and long-term outcome, regarding surgically treated humeral shaft fractures in combination with radial nerve palsy. MATERIALS AND METHODS: We retrospectively analyzed the data of patients with surgically treated humeral shaft fractures from 01/01/2003 to 28/02/2013...
March 9, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
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