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https://www.readbyqxmd.com/read/29349047/reduction-of-the-isolated-anterior-wall-of-the-maxillary-sinus-fracture-with-double-urinary-balloon-catheters-and-fibrin-glue
#1
Jaehee Kim, Ho Jik Yang, Jong Hwan Kim, Su Jin Kim
Background: Conservative treatment is performed for isolated anterior wall of the maxillary sinus fractures, in many cases when the fracture is clinically not severe and asymptomatic. Despite the absence of symptoms, complications such as sinusitis, rhinitis, and chronic purulent secretion may develop; therefore, successful reduction is required. We attempted to reduce the risk of complications using an alternative technique: reduction of the fracture with two urinary balloon catheters inserted through the maxillary ostium and fixation using fibrin glue, which minimizes the damage to the bony fragments and sinus mucosa...
December 2017: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29340852/a-geochemical-view-into-continental-palaeotemperatures-of-the-end-permian-using-oxygen-and-hydrogen-isotope-composition-of-secondary-silica-in-chert-rubble-breccia-kaibab-formation-grand-canyon-usa
#2
Ray Kenny
The upper carbonate member of the Kaibab Formation in northern Arizona (USA) was subaerially exposed during the end Permian and contains fractured and zoned chert rubble lag deposits typical of karst topography. The karst chert rubble has secondary (authigenic) silica precipitates suitable for estimating continental weathering temperatures during the end Permian karst event. New oxygen and hydrogen isotope ratios of secondary silica precipitates in the residual rubble breccia: (1) yield continental palaeotemperature estimates between 17 and 22 °C; and, (2) indicate that meteoric water played a role in the crystallization history of the secondary silica...
January 16, 2018: Geochemical Transactions
https://www.readbyqxmd.com/read/29327559/-combined-surgical-approaches-in-the-treatment-of-complex-tibial-plateau-fractures
#3
Guang-Hua Yuan, Xiao Zheng, Kang Chen
OBJECTIVE: To explore the early clinical efficacy of a posteromedial inverted "L" shape approach combined an assisted antero lateral assisted approach for the treatment of complex fractures of tibial plateau. METHODS: From March 2011 to June 2014, the posteromedial inverted "L" shape approach combined with the antero lateral assisted approach in the treatment of Schatzker type IV, V, VI tibial plateau fracture were performed in 34 cases. There were 23 males and 11 females, ranging in age from18 to 67 years old, averaged 34...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29327541/-mini-locking-plates-for-the-treatment-of-regan-morrey-type-iii-fracture-of-ulnar-coronoid-process-through-anterior-approach-of-elbow-joint
#4
Xiao Lian, Yun-Ji Zeng
OBJECTIVE: To explore clinical effects of mini-locking plates for the treatment of Regan-Morrey type III fractures of ulnar coronoid process through an anterior approach of elbow joint. METHODS: A retrospective analysis on 12 patients with Regan-Morrey type III fractures of the ulnar coronoid process was performed from January 2011 to June 2014, who were treated with unini-locking plates through the anterior approach of elbow joint. There were 7 males and 5 females, ranging in age from 23 to 65 years old, averaged 43 years old...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29326269/exposed-subsurface-ice-sheets-in-the-martian-mid-latitudes
#5
Colin M Dundas, Ali M Bramson, Lujendra Ojha, James J Wray, Michael T Mellon, Shane Byrne, Alfred S McEwen, Nathaniel E Putzig, Donna Viola, Sarah Sutton, Erin Clark, John W Holt
Thick deposits cover broad regions of the Martian mid-latitudes with a smooth mantle; erosion in these regions creates scarps that expose the internal structure of the mantle. We investigated eight of these locations and found that they expose deposits of water ice that can be >100 meters thick, extending downward from depths as shallow as 1 to 2 meters below the surface. The scarps are actively retreating because of sublimation of the exposed water ice. The ice deposits likely originated as snowfall during Mars' high-obliquity periods and have now compacted into massive, fractured, and layered ice...
January 12, 2018: Science
https://www.readbyqxmd.com/read/29316928/risk-of-fracture-among-patients-with-polymyalgia-rheumatica-and-giant-cell-arteritis-a-population-based-study
#6
Zoe Paskins, Rebecca Whittle, Alyshah Abdul Sultan, Sara Muller, Milica Blagojevic-Bucknall, Toby Helliwell, Samantha Hider, Edward Roddy, Christian Mallen
BACKGROUND: Glucocorticoids are associated with increased fracture risk and are the mainstay of treatment in polymyalgia rheumatica (PMR) and giant cell arteritis (GCA). However, fracture risk in these conditions has not been previously quantified. The aim of this study was to quantify the risk of fracture among patients with PMR and GCA. METHODS: A retrospective cohort study was conducted using primary care records from the UK-based Clinical Practice Research Datalink...
January 10, 2018: BMC Medicine
https://www.readbyqxmd.com/read/29310377/fat-grafting-for-resurfacing-an-exposed-implant-in-lower-extremity-a-case-report
#7
Yun-Nan Lin, Chieh-Han Chuang, Shih-Hao Huang, Shu-Hung Huang, Tsai-Ming Lin, I-Wen Lin, Sin-Daw Lin, Yur-Ren Kuo
RATIONALE: Although numerous reconstruction protocols have been reported for lower leg trauma, those for distal leg trauma remain few. We present the case of a woman with an implant exposure wound, who was successfully treated through fat grafting, without major flap surgery. PATIENT CONCERNS: An 83-year-old woman with an exposed implant in lower extremity received reconstruction surgery once and the surgery failed. She refused additional major surgery and negative pressure wound therapy...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29306535/zoom-reconstruction-tool-evaluation-of-image-quality-and-influence-on-the-diagnosis-of-root-fracture
#8
Polyane Mazucatto Queiroz, Gustavo Machado Santaella, Ana Lúcia Alvares Capelozza, Pedro Luiz Rosalen, Deborah Queiroz Freitas, Francisco Haiter-Neto
INTRODUCTION: This study evaluated the image quality and the diagnosis of root fractures when using the Zoom Reconstruction tool (J Morita, Kyoto, Japan). METHODS: A utility wax phantom with a metal sample inside was used for objective evaluation, and a mandible with 27 single-rooted teeth (with and without obturation and with and without vertical or horizontal fractures) was used for diagnostic evaluation. The images were acquired in 3 protocols: protocol 1, field of view (FOV) of 4 × 4 cm and a voxel size of 0...
January 3, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29302682/complications-and-reoperations-in-mandibular-angle-fractures
#9
Collin L Chen, Joseph Zenga, Ruchin Patel, Gregory Branham
Importance: Mandible angle fractures can be repaired in a variety of ways, with no consensus on the outcomes of complications and reoperation rates. Objectives: To analyze patient, injury, and surgical factors, including approach to the angle and plating technique, associated with postoperative complications, as well as the rate of reoperation with regard to mandible angle fractures. Design, Setting, and Participants: Retrospective cohort study analyzing the surgical outcomes of patients with mandible angle fractures between January 1, 2000, and December 31, 2015, who underwent open reduction and internal fixation...
January 4, 2018: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/29301852/potein-kinase-g-activation-reverses-oxidative-stress-and-restores-osteoblast-function-and-bone-formation-in-male-mice-with-type-1-diabetes
#10
Hema Kalyanaraman, Gerburg Schwaerzer, Ghania Ramdani, Francine Castillo, Brian T Scott, Wolfgang Dillmann, Robert L Sah, Darren E Casteel, Renate B Pilz
Bone loss and fractures are under-recognized complications of type 1 diabetes, and are primarily due to impaired bone formation by osteoblasts. The mechanisms leading to osteoblast dysfunction in diabetes are incompletely understood, but insulin deficiency, poor glycemic control, and hyperglycemia-induced oxidative stress likely contribute. Here we show that insulin promotes osteoblast proliferation and survival via the nitric oxide (NO)/cGMP/protein kinase G (PKG) signal transduction pathway, and that PKG stimulation of Akt provides a positive feedback loop...
January 4, 2018: Diabetes
https://www.readbyqxmd.com/read/29298552/e-beam-sterilizable-thermoplastics-elastomers-for-healthcare-devices-mechanical-morphology-and-in-vivo-studies
#11
Ananad Bellam Balaji, Chantara Thevy Ratnam, Mohammad Khalid, Rashmi Walvekar
The effect of electron beam radiation on ethylene-propylene diene terpolymer/polypropylene blends is studied as an attempt to develop radiation sterilizable polypropylene/ethylene-propylene diene terpolymer blends suitable for medical devices. The polypropylene/ethylene-propylene diene terpolymer blends with mixing ratios of 80/20, 50/50, 20/80 were prepared in an internal mixer at 165°C and a rotor speed of 50 rpm/min followed by compression molding. The blends and the individual components were radiated using 3...
January 1, 2018: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/29298073/polydopamine-and-polydopamine-silane-hybrid-surface-treatments-in-structural-adhesive-applications
#12
Ngon T Tran, David P Flanagan, Joshua A Orlicki, Joseph L Lenhart, Kenneth Proctor, Daniel Brainard Knorr
Numerous studies have focused on the remarkable adhesive properties of polydopamine, which can bind to substrates with a wide range of surface energies, even under aqueous conditions. This behavior suggests that polydopamine may be an attractive option as a surface treatment in structural bonding applications, where good bond durability is required. Here, we assessed polydopamine as a surface treatment for bonding aluminum plates with an epoxy resin. A model epoxy adhesive consisting of diglycidyl ether of bisphenol A (DGEBA), and Jeffamine® D230 polyetheramine was employed and lap shear measurements (ASTM D1002 10) were made (i) under dry conditions to examine initial bond strength and (ii) after exposure to hot/wet (63 oC in water for 14 days) conditions to assess bond durability...
January 3, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29283958/risk-of-pneumonia-after-vertebral-compression-fracture-in-women-with-low-bone-density-a-population-based-study
#13
Byunghyun Kim, Joonghee Kim, You Hwan Jo, Si-Hyuck Kang, Yeon Joo Lee, Jae Hyuk Lee, Je Eun Hwang, Min Ji Park, Sihyung Lee
STUDY DESIGN: Retrospective large population based-study. OBJECTIVE: The aim of this study is to elucidate the association between VCFs and pneumonia. SUMMARY OF BACKGROUND DATA: Vertebral compression fracture (VCF) is known to be associated with impaired pulmonary function. However, the risk of developing a pneumonia after a new-onset VCF has not been evaluated. METHODS: The data source was the National Health Screening Program Cohort, a population-based sample cohort of national health screening enrolees...
December 27, 2017: Spine
https://www.readbyqxmd.com/read/29281650/explosive-detonation-causes-an-increase-in-soil-porosity-leading-to-increased-tnt-transformation
#14
Holly A Yu, Niamh Nic Daeid, Lorna A Dawson, David A DeTata, Simon W Lewis
Explosives are a common soil contaminant at a range of sites, including explosives manufacturing plants and areas associated with landmine detonations. As many explosives are toxic and may cause adverse environmental effects, a large body of research has targeted the remediation of explosives residues in soil. Studies in this area have largely involved spiking 'pristine' soils using explosives solutions. Here we investigate the fate of explosives present in soils following an actual detonation process and compare this to the fate of explosives spiked into 'pristine' undetonated soils...
2017: PloS One
https://www.readbyqxmd.com/read/29279764/effects-of-hybrid-coat-on-shear-bond-strength-of-five-cements-an-in-vitro-study
#15
Yue Guo, Hou-De Zhou, Yun-Zhi Feng
PURPOSE: To evaluate the sealing performance of Hybrid Coat and its influence on the shear bond strength of five dentin surface cements. MATERIALS AND METHODS: Six premolars were pretreated to expose the dentin surface prior to the application of Hybrid Coat. The microscopic characteristics of the dentinal surfaces were examined with scanning electron microscopy (SEM). Then, 40 premolars were sectioned longitudinally, and 80 semi-sections were divided into a control group (untreated) and a study group (treated by Hybrid Coat)...
December 2017: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/29259356/in-vitro-fracture-resistance-of-composite-resin-veneered-zirconia-crowns
#16
Chaimongkon Peampring, Juthatip Aksornmuang, Sasiwimol Sanohkan
Aims: The aim of this study is to investigate the fracture load to failure and damage mode of the composite resin-veneered zirconia crowns preparing with two different zirconia surface treatments compared conventional porcelain-veneered zirconia crowns. Materials and Methods: Metallic molar-shape dies prepared with 10° convergence angle a 1.5 mm deep chamfer finish line were used. Two groups of composite-resin-veneered zirconia crowns were prepared using different surface treatment (Group A - sandblasting and Group B - glaze-on technique)...
July 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29246529/teriparatide-treatment-in-an-adult-patient-with-hypophosphatasia-exposed-to-bisphosphonate-and-revealed-by-bilateral-atypical-fractures
#17
Morgane Righetti, Jean Wach, Romain Desmarchelier, Fabienne Coury
Atypical femoral fractures are defined as atraumatic fractures located in the subtrochanteric region or femoral shaft. They have been mainly reported in patients taking bisphosphonates.We report the case of a 67-year-old female with osteoporosis treated by alendronate during ten years.Radiographies showed atypical femoral fractures. Serum levels of total and bone-specific alkaline phosphatase were low. In order to accelerate bone healing, teriparatide was introduced. After one year of teriparatide treatment, pain and functional difficulty have decreased, and alkaline phosphatase levels were normalised...
December 12, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/29242825/hydraulic-fracturing-and-infant-health-new-evidence-from-pennsylvania
#18
Janet Currie, Michael Greenstone, Katherine Meckel
The development of hydraulic fracturing ("fracking") is considered the biggest change to the global energy production system in the last half-century. However, several communities have banned fracking because of unresolved concerns about the impact of this process on human health. To evaluate the potential health impacts of fracking, we analyzed records of more than 1.1 million births in Pennsylvania from 2004 to 2013, comparing infants born to mothers living at different distances from active fracking sites and those born both before and after fracking was initiated at each site...
December 2017: Science Advances
https://www.readbyqxmd.com/read/29238762/etelcalcetide-injectable-calcimimetic-for-the-treatment-of-secondary-hyperparathyroidism-in-hemodialysis-dependent-patients
#19
P A Ureña Torres, J Bover, M Cohen-Solal
Chronic kidney disease is associated with mineral and bone disorders that are now considered as a syndrome. One of the major complications of this syndrome is secondary hyperparathyroidism (SHPT). SHPT increases bone turnover and the risk of fracture. SHPT is also associated with cardiovascular calcification and high mortality risk. The classical medical therapies of SHPT lack long-term efficacy and have undesirable effects on serum calcium and phosphate levels. Surgical parathyroidectomy is a radical therapeutic solution potentially exposing patients to a permanent state of hypoparathyroidism among other complications...
September 2017: Drugs of Today
https://www.readbyqxmd.com/read/29236514/past-methylphenidate-exposure-and-stress-fractures-in-combat-soldiers-a-case-control-study
#20
Haggai Schermann, Ilan Shalom Ben-Ami, Adrian Tudor, Eyal Amar, Ehud Rath, Ran Yanovich
BACKGROUND: Previous research has revealed decreased bone mineral density (BMD) among children and adolescents who receive methylphenidate (MP) treatment for attention deficit hyperactivity disorder (ADHD). These findings have major clinical implications given that the prevalence of medication-treated ADHD is on the rise worldwide. We decided to investigate the clinical effect of MP exposure on the incidence of stress fractures, for which a low BMD is a risk factor. HYPOTHESIS: Exposure to MP is a risk factor for stress fractures...
December 1, 2017: American Journal of Sports Medicine
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