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https://www.readbyqxmd.com/read/28730988/radiostereometric-analysis-of-keeled-versus-pegged-glenoid-components-in-total-shoulder-arthroplasty-a-randomized-feasibility-study
#1
Trevor C Gascoyne, Sheila M B McRae, Sara L Parashin, Jeff R S Leiter, Martin J Petrak, Eric R Bohm, Peter B MacDonald
BACKGROUND: This study aimed to assess differences in the fixation and functional outcomes between pegged and keeled all-polyethylene glenoid components for standard total shoulder arthroplasty. METHODS: Patients were randomized to receive a keeled or pegged all-polyethylene glenoid component. We used model-based radiostereometric analysis (RSA) to assess glenoid fixation and subjective outcome measures to assess patient function. Follow-up examinations were completed at 6 weeks and 6, 12 and 24 months after surgery...
August 2017: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/28729785/evaluation-of-dentinal-defects-during-root-canal-preparation-using-thermomechanically-processed-nickel-titanium-files
#2
Bertan Kesim, Burak Sagsen, Tugrul Aslan
OBJECTIVE: The aim of this study was to compare the incidence of root cracks after root canal instrumentation with thermomechanically processed nickel-titanium (Ni-Ti) files with different instrumentation kinematics. MATERIALS AND METHODS: A total of 150 extracted mandibular premolars with mature apices and straight root canals were divided into five groups and used in this study. In Group 1, 30 teeth were prepared using hand K-files and assigned to control group, Group 2 was instrumented using K3XF Rotary files (SybronEndo, Glendora, CA, USA) with continuous rotary motion...
April 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28729748/on-flare-cme-characteristics-from-sun-to-earth-combining-remote-sensing-image-data-with-in-situ-measurements-supported-by-modeling
#3
Manuela Temmer, Julia K Thalmann, Karin Dissauer, Astrid M Veronig, Johannes Tschernitz, Jürgen Hinterreiter, Luciano Rodriguez
We analyze the well-observed flare and coronal mass ejection (CME) from 1 October 2011 (SOL2011-10-01T09:18) covering the complete chain of effects - from Sun to Earth - to better understand the dynamic evolution of the CME and its embedded magnetic field. We study in detail the solar surface and atmosphere associated with the flare and CME using the Solar Dynamics Observatory (SDO) and ground-based instruments. We also track the CME signature off-limb with combined extreme ultraviolet (EUV) and white-light data from the Solar Terrestrial Relations Observatory (STEREO)...
2017: Solar Physics
https://www.readbyqxmd.com/read/28728636/magnitude-and-trends-in-heavy-episodic-drinking-alcohol-impaired-driving-and-alcohol-related-mortality-and-overdose-hospitalizations-among-emerging-adults-of-college-ages-18-24-in-the-united-states-1998-2014
#4
Ralph Hingson, Wenxing Zha, Daniel Smyth
OBJECTIVE: This article estimates percentages of U.S. emerging adults ages 18-24 engaging in past-month heavy episodic drinking and past-year alcohol-impaired driving, and numbers experiencing alcohol-related unintentional injury deaths and overdose hospitalizations between 1998 and 2014. METHOD: We analyzed national injury mortality data from coroner, census, and college enrollment statistics, the National Survey on Drug Use and Health, and the Nationwide Inpatient Sample...
July 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28725923/assessing-3d-t2-fse-sequence-for-identification-of-the-normal-appendix-working-toward-a-single-sequence-mr-appendicitis-protocol
#5
Nattinee Leelakanok, Andrew S Phelps, Matthew A Zapala, Kambrie Kato, Michael Ohliger, Yi Li, Jesse Courtier
PURPOSES: To assess the ability of a single isotropic 3D T2 FSE sequence to identify the normal appendix in children with potential implication as alternative second-line modality in pediatric appendicitis. MATERIALS AND METHODS: Retrospective review of MR abdomino-pelvis or pelvis in children from Oct 2014-Dec 2016 was done. Only exams with 3D T2 FSE sequence performed on a single scanner type were selected. Patients with history of post appendectomy, studies in which field of view did not include ileocecal valve, with technical and protocol errors, or with fat-saturated acquisition were excluded...
July 19, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/28725497/effect-of-screw-perpendicularity-on-compression-in-scaphoid-waist-fractures
#6
Morgan M Swanstrom, Kyle W Morse, Joseph D Lipman, Krystle A Hearns, Michelle G Carlson
Background  Central and perpendicular (PERP) screw orientations have each been described for scaphoid fracture fixation. It is unclear, however, which orientation produces greater compression. Questions/Purposes  This study compares compression in scaphoid waist fractures with screw fixation in both PERP and pole-to-pole (PTP) configurations. PERP orientation was hypothesized to produce greater compression than PTP orientation. Methods  Ten preoperative computed tomography scans of scaphoid waist fractures were classified by fracture type and orientation in the coronal and sagittal planes...
August 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28725378/ecological-role-of-vertebrate-scavengers-in-urban-ecosystems-in-the-uk
#7
Richard Inger, Daniel T C Cox, Esra Per, Briony A Norton, Kevin J Gaston
Recent research has demonstrated how scavenging, the act of consuming dead animals, plays a key role in ecosystem structure, functioning, and stability. A growing number of studies suggest that vertebrate scavengers also provide key ecosystem services, the benefits humans gain from the natural world, particularly in the removal of carcasses from the environment. An increasing proportion of the human population is now residing in cities and towns, many of which, despite being highly altered environments, contain significant wildlife populations, and so animal carcasses...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28725046/the-location-of-the-deepest-point-of-the-eyeball-determines-the-optic-disc-configuration
#8
Yong Chan Kim, Younhea Jung, Hae-Young Lopilly Park, Chan Kee Park
Tilted and rotated appearances are hallmarks of the myopic optic disc. As the eyeball grows axially, the posterior pole elongates not only globally but in a localized manner as well. In this process, the optic disc is pulled towards the deepest point of the elongated eyeball, which might result in a change in optic disc configuration. Thus, we hypothesized that analyzing the variation of posterior pole contour can play a major role in understanding optic disc configuration in myopic subjects. By analyzing consecutive images of swept source OCT coronal sections at the posterior pole, the deepest interface between Bruch's membrane and the choroid could be identified as the deepest point of the eyeball (DPE)...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724551/evaluation-of-a-pilot-police-led-suicide-early-alert-surveillance-strategy-in-the-uk
#9
Grant James McGeechan, Catherine Richardson, Kevin Weir, Lynn Wilson, Gillian O'Neill, Dorothy Newbury-Birch
INTRODUCTION: Those bereaved by suicide are at increased risk of psychological harm, which can be reduced with the provision of timely support. This paper outlines an evaluation of a pilot police-led suicide strategy, in comparison to a coroner-led suicide strategy looking at the number, and length of time it takes for deaths to be recorded for each strategy. Additionally, the police-led strategy offers timely contact from support services for bereaved individuals. We examined what impact this offer of support had on the capacity of support services...
July 19, 2017: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/28724507/comparison-of-endocranial-morphology-according-to-age-in-one-piece-fronto-orbital-advancement-using-a-distraction-in-craniosynostotic-plagiocephaly
#10
Woo Shik Jeong, Ersin Altun, Jong Woo Choi, Young Shin Rah
The capacity for cranial remodelling is known to be better at younger ages. The timing of cranioplasty could affect the axis of the skull base. We investigated whether age at the time of distraction is related to the outcome of endocranial morphology correction. In this retrospective study, we investigated the surgical outcome of 14 patients with unilateral craniosynostotic plagiocephaly who underwent one-piece fronto-orbital advancement without bandeau by using a distraction technique between April 2005 and December 2015...
June 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28723962/surface-functionalization-specific-binding-of-coagulation-factors-by-zinc-oxide-nanoparticles-delays-coagulation-time-and-reduces-thrombin-generation-potential-in-vitro
#11
Jun-Young Yang, Jiyeong Bae, Ayoung Jung, Seonyeong Park, Seungtae Chung, Jihyun Seok, Hangsik Roh, Youngju Han, Jae-Min Oh, Soojung Sohn, Jayoung Jeong, Wan-Seob Cho
Zinc oxide nanoparticles (ZnO NPs) have many biomedical applications such as chemotherapy agents, vaccine adjuvants, and biosensors but its hemocompatibility is still poorly understood, especially in the event of direct contact of NPs with blood components. Here, we investigated the impact of size and surface functional groups on the platelet homeostasis. ZnO NPs were synthesized in two different sizes (20 and 100 nm) and with three different functional surface groups (pristine, citrate, and L-serine). ZnO NPs were incubated with plasma collected from healthy rats to evaluate the coagulation time, kinetics of thrombin generation, and profile of levels of coagulation factors in the supernatant and coronated onto the ZnO NPs...
2017: PloS One
https://www.readbyqxmd.com/read/28722095/-correlation-of-mri-apparent-diffusion-coeffcient-with-molecular-marker-ki-67-in-gastric-cancer
#12
Guodian Zheng, Xiangdong Cheng, Lijing Wang, Zhiyuan Xu, Xuning Gao, Pengfei Yu, Hang Lyu, Ting Huang, Jiahui Chen
OBJECTIVES: To study the correlation between MRI apparent diffusion coefficient (ADC) and expression of Ki-67 in gastric cancers, and to investigate the application of ADC value in diagnosing the malignance of gastric cancer. METHODS: A retrospective cohort analysis was performed on 87 gastric cancer patients who received MRI examination and radical resection at Zhejiang Provincial Hospital of Traditional Chinese Medicine from November 2014 to August 2015. All the postoperative resected samples were confirmed as gastric cancer...
July 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28720412/vascular-compression-of-the-anterior-optic-pathway-a-rare-occurrence
#13
Satoshi Tsutsumi, Hideo Ono, Yukimasa Yasumoto
BACKGROUND: Vascular compression of the anterior optic pathway has been documented as an infrequent cause of visual impairments. Here we characterize such vascular compression using magnetic resonance imaging. METHODS: A total of 183 patients without pathologies affecting the optic pathways underwent T2-weighted or constructive interference steady-state sequence magnetic resonance imaging. Imaging data from coronal sections were analyzed. RESULTS: A vascular compression of the anterior optic pathway was identified in 20 patients (11%)...
July 15, 2017: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/28717652/morphological-study-of-the-anterior-surface-of-the-distal-radius
#14
Ho-Jung Cho, Soyeon Kim, Dai-Soon Kwak
The shape of the anterior surface of the distal radius is important for designing a distal radius plate for wrist fracture surgery. The aim of this study was to describe the shape of the anterior surface of the distal radius and to compare the results between female and male. We used 90 sides from three-dimensional radial models based on computer tomography images from Korean adult cadavers for this study. The anterior surface was measured in two dimensions in the coronal view, and we sectioned the anterior surface of the models to obtain intermediate and radial sections to measure the curved shape of the anterior surface in sagittal view...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28716090/clinical-workflow-for-mr-only-simulation-and-planning-in-prostate
#15
Neelam Tyagi, Sandra Fontenla, Michael Zelefsky, Marcia Chong-Ton, Kyle Ostergren, Niral Shah, Lizette Warner, Mo Kadbi, Jim Mechalakos, Margie Hunt
PURPOSE: To describe the details and experience of implementing a MR-only workflow in the clinic for simulation and planning of prostate cancer patients. METHODS: Forty-eight prostate cancer patients from June 2016 - Dec 2016 receiving external beam radiotherapy were scheduled to undergo MR-only simulation. MR images were acquired for contouring (T2w axial, coronal, sagittal), synthetic-CT generation (3D FFE-based) and fiducial identification (3D bFFE-based). The total acquisition time was 25 min...
July 17, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28714067/evaluation-of-plastic-scintillator-detector-for-small-field-stereotactic-patient-specific-quality-assurance
#16
Yujiao Qin, Stephen J Gardner, Joshua Kim, Yimei Huang, Ning Wen, Anthony Doemer, Indrin J Chetty
PURPOSE: To evaluate the performance of a commercial plastic scintillator detector (PSD) for small-field stereotactic patient-specific quality assurance (QA) measurements using flattening-filter-free beam. METHODS: A total of ten spherical targets (volume range: [0.03cc-2cc]) were planned with two techniques: (1) Dynamic Conformal Arc (DCA-10 plans), and (2) Volumetric Modulated Arc Therapy (VMAT-10 plans). All plans were generated using Varian Eclipse treatment planning system, and AcurosXB v...
July 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28714043/effects-of-surgically-assisted-rapid-maxillary-expansion-on-mandibular-position-a-three-dimensional-study
#17
Talles Fernando Medeiros Oliveira, Valfrido Antônio Pereira-Filho, Mario Francisco Real Gabrielli, Eduardo Sanches Gonçales, Ary Santos-Pinto
BACKGROUND: This study aimed to evaluate three-dimensional changes in mandibular position after surgically assisted rapid maxillary expansion (SARME). METHODS: A retrospective study was carried out with tomographic records of 30 adult patients with maxillary transverse deficiency who underwent SARME. Cone beam computed tomography scans were obtained preoperatively (T1), after expansion (T2) and 6 months after expansion (T3). Mandibular landmarks were measured with respect to axial, sagittal, and coronal planes...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28713762/comparison-of-the-shaping-ability-of-waveone-reciprocating-files-with-or-without-glide-path-in-simulated-curved-s-shaped-root-canals
#18
Ayca Yilmaz, Enver Sedat Kucukay, Murat Istektepe, Selen Nihal Sisli, Handan Ersev, Isil Karagoz-Kucukay
OBJECTIVES: The aim was to compare the shaping ability of WaveOne reciprocating files with or without glide path in simulated curved S-shaped root canals. MATERIALS AND METHODS: Forty ISO #15, 0.02 taper, clear resin Endo Training Bloc-S blocks were studied. The simulated curved S-shaped canals were dyed using ink, preinstrumentation images were scanned, and resin blocks were prepared and divided into Group A: PathFile and WaveOne and Group B: WaveOne. All canals were postoperatively scanned...
June 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28713746/unicoronal-craniosynostosis-and-plagiocephaly-correction-with-fronto-orbital-bone-remodeling-and-advancement
#19
S M Balaji
The standard surgical treatment for unilateral coronal synostosis is fronoto-orbital advancement. The technique is known for its high recurrence rate and established plagiocephaly remains a challenge. In this case report, the management of a 5-year-old with unicoronal plagiocephaly correction with fronto-orbital bone remodeling and advancement is presented. The previous surgery done at 6 months of age resulted in failure with establishment of hypertelorism and sudden progressive diminishing vision. Furthermore, temporal hallowing was evident in the imaging technique...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28713716/urethroplasty-using-a-turnover-flap-for-correct%C3%A4-on-of-problemat%C3%A4-c-urethrocutaneous-f%C3%A4-stula-a-case-report
#20
Husnu Tokgoz, Gulsum Tetik, Soner Yalcinkaya, Ali Yildiz, Murat Savas
Urethral fistula formation after urethroplasty for hypospadias is a frequent complication. Repeated failures can occur even after multiple attempts at repair. A surgical procedure is described for a problematic resistant urethrocutaneous fistula (UF) with the transverse turnover flap using the Buck's fascia of the corpus cavernosum. A 23-year-old male was admitted to our hospital with recurrent coronal UF. We placed a suprapubic catheter in the bladder and operated the patient with the flap technique combined with glanuloplasty...
May 2017: World Journal of Plastic Surgery
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