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https://www.readbyqxmd.com/read/28820012/effect-of-rotational-prosthetic-alignment-variation-on-tibiofemoral-contact-pressure-distribution-and-joint-kinematics-in-total-knee-replacement
#1
Xin Xie, Roy Rusly, John D DesJardins, Frank Voss, Kim Chillag, Martine LaBerge
In total knee replacement surgery, implant alignment is one of the most important criteria for successful long-term clinical outcome. During total knee replacement implantation, femoral and tibial alignment are determined through appropriate bone resections, which could vary based on patient anatomy, implant design and surgical technique and further influence loading conditions and clinical outcomes. The current research focused on three critical alignment parameters for total knee replacement insertion: femoral component internal/external (I/E) rotation, varus-valgus tibiofemoral angulation and posterior tibial slope...
August 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28776670/archosauriform-endocranial-morphology-and-osteological-evidence-for-semiaquatic-sensory-adaptations-in-phytosaurs
#2
Emily J Lessner, Michelle R Stocker
The examination of endocranial data of archosauriforms has led to advances on the evolution of body size, nerve pathways, and sensory abilities. However, much of that research has focused on bird-line archosaurs, resulting in a skewed view of Archosauria. Phytosauria, a hypothesized sister taxon to or early-branching member of Archosauria, provides a potential outgroup condition. Most previous phytosaur endocranial studies were executed without the use of modern technology and focused on derived members of Phytosauria...
August 4, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28759819/polymer-coating-embolism-from-intravascular-medical-devices-a-clinical-literature-review
#3
REVIEW
Amitabh M Chopra, Monik Mehta, Jean Bismuth, Maksim Shapiro, Michael C Fishbein, Alina G Bridges, Harry V Vinters
Over the past three decades, lubricious (hydrophobic and/or hydrophilic) polymer-coated devices have been increasingly adopted by interventional physicians and vascular surgeons to access and treat a wider range of clinical presentations. Recent clinical literature highlights the presence of polymer coating emboli within the anatomy - a result of coating separation from an intravascular device - and associates it with a range of adverse clinical sequelae. The 2015 U.S. Food and Drug Administration safety communication titled "Lubricious Coating Separation from Intravascular Medical Devices" acknowledges these concerns and concludes that it will work with stakeholders to develop nonclinical test methodologies, establish performance criteria, and identify gaps in current national and international device standards for coating integrity performance...
June 22, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28749840/computed-tomography-research-relative-anatomy-of-caldwell-luc-approach-in-pterygopalatine-fossa-surgery
#4
Mei Chen Liu, Xiao Rui Yin, Yi Shui Zhang, Wen Yang, Han Wen Zhang, Hao Bo Duan, Jian Ming Liu, Kai Liang Cheng, You Qiong Li
With the development of endoscopic technique, Caldwell-Luc approach has more wide applications and becomes a common method of pterygopalatine fossa (PPF) surgery. Few data can be used in this approach to avoid injuring the vessels and nerves within this area. In this study, the authors used computed tomography to get the coordinates of inferior orbital fissure, foramen rotundum, sphenopalatine foramen, internal opening of pterygoid canal, the strangulation of PPF, and the greater palatine foramen with canine fossa as the origin...
July 26, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28710777/update-in-enteroscopy-new-devices-and-new-indications
#5
REVIEW
Tom G Moreels
The present review provides an update of the currently available (proto-) types of device-assisted enteroscopy (DAE). In recent years, newly designed double- and single-balloon enteroscopes have emerged. They aim to improve insertion depth into the small bowel, and they also allow more efficient endoscopic interventions. Nowadays, almost all conventional endoscopic procedures are feasible using DAE, opening the door to new indications. Recently, more data have become available on pediatric DAE, DAE-assisted colonoscopy, and DAE in patients with altered anatomy, including DAE-assisted endoscopic retrograde cholangiopancreatography and direct cholangioscopy...
July 14, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28642780/rrp42-a-subunit-of-exosome-plays-an-important-role-in-female-gametophytes-development-and-mesophyll-cell-morphogenesis-in-arabidopsis
#6
Xiaoyuan Yan, Zongyun Yan, Yuzhen Han
The exosome complex plays a central and essential role in RNA metabolism. However, current research on functions of exosome subunit in plants is limited. Here, we used an egg cell-specific promoter-controlled CRISPR/Cas9 system to knock out RRP42 which encodes a core subunit of the Arabidopsis exosome and presented evidence that RRP42 is essential for the development of female gametophytes. Next, we designed three different amiRNAs targeting RRP42. The rrp42 knock-down mutants mainly displayed variegated and serrated leaves, especially in cauline leaves...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28627007/optical-molecular-imaging-guided-radiation-therapy-part-1-integrated-x-ray-and-bioluminescence-tomography
#7
Junwei Shi, Thirupandiyur S Udayakumar, Zhiqun Wang, Nesrin Dogan, Alan Pollack, Yidong Yang
PURPOSE: X-ray CT faces challenges in differentiating tumors from surrounding healthy tissues. A bioluminescence tomography (BLT) system which can directly reconstruct the internal luminescent tumors, was developed and integrated with CT system to accurately guide radiation dose delivery. METHODS: The BLT system, employing a lens-coupled CCD camera, was physically registered with an onboard cone beam CT system in an image guided small animal arc radiation treatment system (iSMAART)...
June 19, 2017: Medical Physics
https://www.readbyqxmd.com/read/28619402/global-health-values-of-a-multidirectional-near-peer-training-program-in-surgery-pathology-anatomy-research-methodology-and-medical-education-for-haitian-rwandan-and-canadian-medical-students
#8
Malik Elharram, Trish Dinh, Annie Lalande, Susan Ge, Sophie Gao, Geoffroy Noël
BACKGROUND: As health care delivery increasingly requires providers to cross international borders, medical students at McGill University, Canada, developed a multidirectional exchange program with Haiti and Rwanda. The program integrates surgery, pathology, anatomy, research methodology, and medical education. OBJECTIVE: The aim of the present study was to explore the global health value of this international training program to improve medical education within the environment of developing countries, such as Haiti and Rwanda, while improving sociocultural learning of Canadian students...
March 2017: Annals of Global Health
https://www.readbyqxmd.com/read/28595643/planning-strategies-for-inter-fractional-robustness-in-pancreatic-patients-treated-with-scanned-carbon-therapy
#9
Vania Batista, Daniel Richter, Stephanie E Combs, Oliver Jäkel
BACKGROUND: Managing inter-fractional anatomy changes is a challenging task in radiotherapy of pancreatic tumors, especially in scanned carbon-ion delivery. This treatment planning study aims to focus on clinically feasible solutions, such as the beam angle selection and margin design to increase the robustness against inter-fractional uncertainties. METHODS: This study included 10 patients with weekly 3D-CT imaging and physician-approved Clinical Target Volume (CTV)...
June 8, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28518066/scaled-anatomical-model-creation-of-biomedical-tomographic-imaging-data-and-associated-labels-for-subsequent-sub-surface-laser-engraving-ssle-of-glass-crystals
#10
Aislinn M Betts, Matthew T McGoldrick, Christopher R Dethlefs, Justin Piotrowicz, Tony Van Avermaete, Jeff Maki, Steve Gerstler, W M Leevy
Biomedical imaging modalities like computed tomography (CT) and magnetic resonance (MR) provide excellent platforms for collecting three-dimensional data sets of patient or specimen anatomy in clinical or preclinical settings. However, the use of a virtual, on-screen display limits the ability of these tomographic images to fully convey the anatomical information embedded within. One solution is to interface a biomedical imaging data set with 3D printing technology to generate a physical replica. Here we detail a complementary method to visualize tomographic imaging data with a hand-held model: Sub Surface Laser Engraving (SSLE) of crystal glass...
April 25, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28472546/an-exploration-of-anatomists-views-toward-the-use-of-body-painting-in-anatomical-and-medical-education-an-international-study
#11
Natalie E Cookson, Justine J Aka, Gabrielle M Finn
Previous research has explored the experiences of medical students using body painting as a learning tool. However, to date, faculty experiences and views have not been explored. This international qualitative study utilized a grounded theory approach with data collection through interviews with academics and clinicians who utilized body painting as part of their anatomical teaching. Twenty-six anatomists participated in the study from 14 centers worldwide. Three themes emerged from the data: (1) the efficacy of body painting, (2) the promotion of knowledge retention and recall, (3) considerations and practicalities regarding the use of body painting as a teaching tool...
May 4, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28444713/do-we-assess-urethral-function-adequately-in-lutd-and-nlutd-ici-rs-2015
#12
REVIEW
Jerzy B Gajewski, Peter F W M Rosier, Sajjad Rahnama'i, Paul Abrams
INTRODUCTION: Urethral function, as well as anatomy, play a significant role in voiding reflex and abnormalities in one or both contribute to the pathophysiology of Lower Urinary Tract Dysfunction (LUTD). We have several diagnostic tools to assess the urethral function or dysfunction but the question remains, are these adequate? METHODS: This is a report of the proceedings of Think Tank P1: 'Do we assess urethral function adequately in LUTD and NLUTD?' from the annual International Consultation on Incontinence-Research Society, which took place September 22-24, 2014 in Bristol, UK...
April 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28439719/radiological-imaging-of-teratological-fetuses-what-can-we-learn
#13
REVIEW
Lucas L Boer, A N Schepens-Franke, J J A van Asten, D G H Bosboom, K Kamphuis-van Ulzen, T L Kozicz, D J Ruiter, R-J Oostra, W M Klein
OBJECTIVES: To determine the advantages of radiological imaging of a collection of full-term teratological fetuses in order to increase their scientific and educational value. BACKGROUND : Anatomical museums around the world exhibit full-term teratological fetuses. Unfortunately, these museums are regularly considered as "morbid cabinets". Detailed dysmorphological information concerning the exhibited specimens is often lacking. Moreover, fetuses with severe and complex congenital anomalies are frequently diagnosed incompletely, incorrectly or not at all...
June 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28428052/opening-eyes-to-nanomedicine-where-we-are-challenges-and-expectations-on-nanotherapy-for-diabetic-retinopathy
#14
REVIEW
Elisa J Campos, António Campos, João Martins, António Francisco Ambrósio
People affected with ocular diseases will significantly increase over the next decades, and, consequently, a substantial increase in health costs is expected. Diabetic retinopathy is the most common chronic complication of diabetes. The treatment of eye diseases affecting the posterior segment, such as diabetic retinopathy, is quite challenging due to the anatomy, physiology and biochemistry of the eye. Therefore, the development of new therapeutics for posterior eye diseases has been a major focus of pharmaceutical research in the area of vision sciences...
April 18, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28357835/identification-of-world-health-organisation-ship-s-medicine-chest-contents-by-anatomical-therapeutic-chemical-atc-classification-codes
#15
Seyed Khorsow Tayebati, Giulio Nittari, Syed Sarosh Mahdi, Nicholas Ioannidis, Fabio Sibilio, Francesco Amenta
BACKGROUND: Ships should carry mandatory given amounts of medicinal products and basic first aid items, collectively known as the ship's medicine chest. Type and quantities of these products/items are suggested by the World Health Organisation (WHO) and regulated by individual flag states. In countries that lack national legislation, it is assumed that ships should follow WHO indications. An objective difficulty mainly involving vessels of international long-haul routes could be to recognise medicinal compounds obtained in other countries for replacing products used or expired...
2017: International Maritime Health
https://www.readbyqxmd.com/read/28269801/managing-formaldehyde-indoor-pollution-in-anatomy-pathology-departments
#16
Gabriele d'Ettorre, Mario Criscuolo, Mauro Mazzotta
BACKGROUND: Nearly eleven years have passed since the International Agency for Research on Cancer classified Formaldehyde (FA) as a known human carcinogen (group 1), yet the safety of anatomy pathology workers who are currently exposed to FA is still a matter of concern. OBJECTIVE: The purpose of this study was to evaluate the literature to discover which topics have been focused on and what the latest developments are in managing FA indoor pollution in anatomy pathology departments...
February 27, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28244444/nondestructive-imaging-of-the-internal-microstructure-of-vessels-and-nerve-fibers-in-rat-spinal-cord-using-phase-contrast-synchrotron-radiation-microtomography
#17
Jianzhong Hu, Ping Li, Xianzhen Yin, Tianding Wu, Yong Cao, Zhiming Yang, Liyuan Jiang, Shiping Hu, Hongbin Lu
The spinal cord is the primary neurological link between the brain and other parts of the body, but unlike those of the brain, advances in spinal cord imaging have been challenged by the more complicated and inhomogeneous anatomy of the spine. Fortunately with the advancement of high technology, phase-contrast synchrotron radiation microtomography has become widespread in scientific research because of its ability to generate high-quality and high-resolution images. In this study, this method has been employed for nondestructive imaging of the internal microstructure of rat spinal cord...
March 1, 2017: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/28229056/experimental-visualization-of-labyrinthine-structure-with-optical-coherence-tomography
#18
Saleh Mohebbi, Marjan Mirsalehi, Lüder-Alexander Kahrs, Tobias Ortmaier, Thomas Lenarz, Omid Majdani
INTRODUCTION: Visualization of inner ear structures is a valuable strategy for researchers and clinicians working on hearing pathologies. Optical coherence tomography (OCT) is a high-resolution imaging technology which may be used for the visualization of tissues. In this experimental study we aimed to evaluate inner ear anatomy in well-prepared human labyrinthine bones. MATERIALS AND METHODS: Three fresh human explanted temporal bones were trimmed, chemically decalcified with ethylenediaminetetraacetic acid (EDTA), and mechanically drilled under visual control using OCT in order to reveal the remaining bone shell...
January 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28220268/anterolateral-ligament-expert-group-consensus-paper-on-the-management-of-internal-rotation-and-instability-of-the-anterior-cruciate-ligament-deficient-knee
#19
REVIEW
Bertrand Sonnery-Cottet, Matthew Daggett, Jean-Marie Fayard, Andrea Ferretti, Camilo Partezani Helito, Martin Lind, Edoardo Monaco, Vitor Barion Castro de Pádua, Mathieu Thaunat, Adrian Wilson, Stefano Zaffagnini, Jacco Zijl, Steven Claes
Purpose of this paper is to provide an overview of the latest research on the anterolateral ligament (ALL) and present the consensus of the ALL Expert Group on the anatomy, radiographic landmarks, biomechanics, clinical and radiographic diagnosis, lesion classification, surgical technique and clinical outcomes. A consensus on controversial subjects surrounding the ALL and anterolateral knee instability has been established based on the opinion of experts, the latest publications on the subject and an exchange of experiences during the ALL Experts Meeting (November 2015, Lyon, France)...
June 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28125816/comparative-anatomy-of-the-ovine-and-female-pelvis
#20
Iva Urbankova, Katarina Vdoviakova, Rita Rynkevic, Nikhil Sindhwani, Dries Deprest, Andrew Feola, Paul Herijgers, Ladislav Krofta, Jan Deprest
BACKGROUND: Pelvic organ prolapse affects half of vaginally parous women. Several animal models are used to study its pathophysiology and treatment. Sheep are interesting because they develop spontaneously prolapse with similar risk factors as women and can be used for vaginal surgery. This study describes ovine pelvis anatomy and compares it to women's pelvis to provide anatomical tools for translational researchers. METHODS: MRI, pelvic dissections, and histology were used for detailed macro- and microscopic analysis of relevant anatomical structures in 6 nulliparous ewes...
January 27, 2017: Gynecologic and Obstetric Investigation
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