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https://www.readbyqxmd.com/read/28546955/biofabrication-and-biomaterials-for-urinary-tract-reconstruction
#1
REVIEW
Moustafa M Elsawy, Achala de Mel
Reconstructive urologists are constantly facing diverse and complex pathologies that require structural and functional restoration of urinary organs. There is always a demand for a biocompatible material to repair or substitute the urinary tract instead of using patient's autologous tissues with its associated morbidity. Biomimetic approaches are tissue-engineering tactics aiming to tailor the material physical and biological properties to behave physiologically similar to the urinary system. This review highlights the different strategies to mimic urinary tissues including modifications in structure, surface chemistry, and cellular response of a range of biological and synthetic materials...
2017: Research and Reports in Urology
https://www.readbyqxmd.com/read/28544074/single-stage-aesthetic-and-functional-reconstruction-of-composite-facial-gunshot-wound-with-a-chimeric-functioning-muscle-and-fibular-osseous-flap-case-report-and-review-of-the-literature
#2
Andreas Gravvanis, Konstantinos Apostolou, Dimitrios Anterriotis, Dimosthenis Tsoutsos
The current concepts in the aesthetic and functional reconstruction of complex oromandibular defects are presented with a case of a patient with self-inflicted gunshot wound to the face. The patient presented with a 6 cm composite mandibular defect; the buccomandibular and suborbital aesthetic zones of the cheek along with the mucosa lining, and the ipsilateral facial musculature were missing. A rapid prototyping model of the facial skeleton was used to assist in preoperative planning. A single stage reconstruction with two free flaps was planned; a free fibula osseous flap to reconstruct the mandibular defect, and a free chimeric ALT/functioning vastus lateralis muscle...
May 23, 2017: Microsurgery
https://www.readbyqxmd.com/read/28542491/the-face-of-war-trauma-analysis-of-a-mass-grave-from-the-battle-of-l%C3%A3-tzen-1632
#3
Nicole Nicklisch, Frank Ramsthaler, Harald Meller, Susanne Friederich, Kurt W Alt
Contemporary accounts of battles are often incomplete or even erroneous because they reflect the-often biased-viewpoints of the authors. Battlefield archaeology faces the task of compiling an historical analysis of a battle and of gathering all the available facts. Besides cultural historical evidence and artefacts, the human remains of those who have fallen in battle also provide invaluable information. In studying mass graves from a military context, the injury types and patterns are significant. They allow us to reconstruct the circumstances surrounding the soldiers' deaths and provide information on the hostilities that occurred on the battlefield...
2017: PloS One
https://www.readbyqxmd.com/read/28541416/serial-block-face-sem-visualization-of-unusual-plant-nuclear-tubular-extensions-in-a-carnivorous-plant-utricularia-lentibulariaceae
#4
Bartosz J Plachno, Piotr Swiatek, Richard W Jobson, Karol Malota, Wojciech Brutkowski
Background and Aims: In Utricularia nelumbifolia , the nuclei of placental nutritive tissue possess unusually shaped projections not known to occur in any other flowering plant. The main aim of the study was to document the morphology and ultrastructure of these unusual nuclei. In addition, the literature was searched to find examples of nuclear tubular projections in other plant groups, and the nuclei of closely related species of Utricularia (i.e. sects Iperua , Orchidioides , Foliosa and Utricularia ) were examined...
May 24, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28538555/the-anatomy-of-the-facial-vein-implications-for-plastic-reconstructive-and-aesthetic-procedures
#5
Sebastian Cotofana, Hanno Steinke, Alexander Schlattau, Markus Schlager, Jonathan M Sykes, Malcolm Z Roth, Alexander Gaggl, Riccardo E Giunta, Robert H Gotkin, Thilo L Schenck
BACKGROUND: Anatomical knowledge of the facial vasculature is crucial for successful plastic, reconstructive, and minimally invasive procedures of the face. Whereas the majority of previous investigations focused on facial arteries, the precise course, variability, and relationship with adjacent structures of the facial vein have been widely neglected. METHODS: Seventy-two fresh frozen human cephalic cadavers (32 male and 40 female cadavers; mean age, 75.2 ± 10...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28528636/correlative-two-photon-and-serial-block-face-scanning-electron-microscopy-in-neuronal-tissue-using-3d-near-infrared-branding-maps
#6
Robert M Lees, Christopher J Peddie, Lucy M Collinson, Michael C Ashby, Paul Verkade
Linking cellular structure and function has always been a key goal of microscopy, but obtaining high resolution spatial and temporal information from the same specimen is a fundamental challenge. Two-photon (2P) microscopy allows imaging deep inside intact tissue, bringing great insight into the structural and functional dynamics of cells in their physiological environment. At the nanoscale, the complex ultrastructure of a cell's environment in tissue can be reconstructed in three dimensions (3D) using serial block face scanning electron microscopy (SBF-SEM)...
2017: Methods in Cell Biology
https://www.readbyqxmd.com/read/28528356/operating-room-fires-in-periocular-surgery
#7
Michael A Connor, Anne M Menke, Ivan Vrcek, John W Shore
AIM: A survey of ophthalmic plastic and reconstructive surgeons as well as seven-year data regarding claims made to the Ophthalmic Mutual Insurance Company (OMIC) is used to discuss operating room fires in periocular surgery. METHODS: A retrospective review of all closed claim operating room fires submitted to OMIC was performed. A survey soliciting personal experiences with operating room fires was distributed to all American Society of Oculoplastic and Reconstructive Surgeons...
May 20, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28520540/virtual-surgery-for-conduit-reconstruction-of-the-right-ventricular-outflow-tract
#8
Chin Siang Ong, Yue-Hin Loke, Justin Opfermann, Laura Olivieri, Luca Vricella, Axel Krieger, Narutoshi Hibino
PURPOSE: Virtual surgery involves the planning and simulation of surgical reconstruction using three-dimensional (3D) modeling based upon individual patient data, augmented by simulation of planned surgical alterations including implantation of devices or grafts. Here we describe a case in which virtual cardiac surgery aided us in determining the optimal conduit size to use for the reconstruction of the right ventricular outflow tract. DESCRIPTION: The patient is a young adolescent male with a history of tetralogy of Fallot with pulmonary atresia, requiring right ventricle-to-pulmonary artery (RV-PA) conduit replacement...
May 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28516202/-plastic-reconstruction-of-radiation-injuries
#9
P M Vogt, T R Mett, C Henkenberens, C Radtke, R Ipaktchi
In addition to surgical and drug therapy, radiotherapy (or radiation therapy) is one of the three mainstays of modern oncological therapy regimes. It uses ionizing radiation to control tumors by damaging the DNA of cancerous tissue leading to cellular death. Although advances have been made in recent years resulting in a reduced dosage to the surrounding tissues, radiation injuries and tissue-related side effects cannot be completely avoided. Knowledge of the pathophysiology, treatment modalities and interdisciplinary treatment approaches are essential for effective therapy whilst limiting side effects...
May 17, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28513587/experimental-quantum-compressed-sensing-for-a-seven-qubit-system
#10
C A Riofrío, D Gross, S T Flammia, T Monz, D Nigg, R Blatt, J Eisert
Well-controlled quantum devices with their increasing system size face a new roadblock hindering further development of quantum technologies. The effort of quantum tomography-the reconstruction of states and processes of a quantum device-scales unfavourably: state-of-the-art systems can no longer be characterized. Quantum compressed sensing mitigates this problem by reconstructing states from incomplete data. Here we present an experimental implementation of compressed tomography of a seven-qubit system-a topological colour code prepared in a trapped ion architecture...
May 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28512467/extra-facial-landmark-localization-via-global-shape-reconstruction
#11
Shuqiu Tan, Dongyi Chen, Chenggang Guo, Zhiqi Huang
Localizing facial landmarks is a popular topic in the field of face analysis. However, problems arose in practical applications such as handling pose variations and partial occlusions while maintaining moderate training model size and computational efficiency still challenges current solutions. In this paper, we present a global shape reconstruction method for locating extra facial landmarks comparing to facial landmarks used in the training phase. In the proposed method, the reduced configuration of facial landmarks is first decomposed into corresponding sparse coefficients...
2017: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/28507858/reconstructing-discontinuous-facial-defects-with-simultaneous-ulnar-perforator-free-flaps
#12
Carissa M Thomas, Mofiyinfolu Sokoya, Frederic W-B Deleyiannis
Multiple, simultaneous skin cancers of the face are common. This is the first description of reconstructing discontinuous facial defects (i.e., separate sites of the face) with simultaneous ulnar perforator flaps. The distinct innovations of this multiple flap design are the ability to restrict the harvest site to one extremity, to obtain vein and arterial grafts from the same extremity, and to create multiple flaps with minimal hirsutism and bulk. We present a case of a 57-year-old male with multiple basal cell carcinomas who underwent wide local excisions of the right upper lip and cheek and of the left lower eyelid and infraorbital cheek...
April 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28506491/mapping-of-glenoid-bone-loss-in-recurrent-anterior-shoulder-instability-is-there-a-particular-deficit-pattern
#13
Benjamin Bockmann, Arne Johannes Venjakob, Frank Reichwein, Marthe Hagenacker, Wolfgang Nebelung
BACKGROUND: Glenoid bone loss in recurrent anterior shoulder instability is a challenging problem for shoulder surgeons, and knowledge about the anatomy of glenoid deficits is scarce. In this study, we tried to evaluate the pattern of this pathology. METHODS: Our analysis included 44 shoulders from 44 patients with recurrent anterior shoulder instability accompanied by a clinically relevant glenoid bone loss. The defect size, the localization of the inferior defect edge, and the defect angle were measured, and osseous landmarks were identified...
May 11, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28504987/secondary-reconstruction-of-maxillofacial-trauma
#14
Jaime Castro-Núñez, Joseph E Van Sickels
PURPOSE OF REVIEW: Craniomaxillofacial trauma is one of the most complex clinical conditions in contemporary maxillofacial surgery. Vital structures and possible functional and esthetic sequelae are important considerations following this type of trauma and intervention. Despite the best efforts of the primary surgery, there are a group of patients that will have poor outcomes requiring secondary reconstruction to restore form and function. The purpose of this study is to review current concepts on secondary reconstruction to the maxillofacial complex...
May 12, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28500329/no-evidence-of-inbreeding-depression-in-a-tasmanian-devil-insurance-population-despite-significant-variation-in-inbreeding
#15
Rebecca Gooley, Carolyn J Hogg, Katherine Belov, Catherine E Grueber
Inbreeding depression occurs when inbred individuals experience reduced fitness as a result of reduced genome-wide heterozygosity. The Tasmanian devil faces extinction due to a contagious cancer, devil facial tumour disease (DFTD). An insurance metapopulation was established in 2006 to ensure the survival of the species and to be used as a source population for re-wilding and genetic rescue. The emergence of DFTD and the rapid decline of wild devil populations have rendered the species at risk of inbreeding depression...
May 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28496385/initial-assessment-and-evaluation-of-traumatic-facial-injuries
#16
REVIEW
Tuan A Truong
The care of the facial trauma patient continues to evolve in the ever-changing face of medicine. Patients can be reassured that their care is managed by a variety of specialists knowledgeable in the assessment and management of complex facial injuries. Thanks in part to advances in imaging modalities, bone fixation techniques and technology, and a wider array of reconstructive procedures, the foundation upon which the reconstructive ladder of facial injuries rests continues to expand. The overall goal of repair is a return to a preinjury state of form and function...
May 2017: Seminars in Plastic Surgery
https://www.readbyqxmd.com/read/28488589/quasicrystalline-and-crystalline-types-of-local-protein-order-in-capsids-of-small-viruses
#17
Olga Konevtsova, Vladimir Pimonov, Vladimir Lorman, Sergey B Rochal
Like metal alloys and micellar systems in soft matter, the viral capsid structures can be of crystalline and quasicrystalline types. We reveal the local quasicrystalline order of proteins in small spherical viral capsids using their nets of dodecahedral type. We show that the structure of some of the viral shells is well described in terms of a chiral pentagonal tiling, whose nodes coincide with centers of mass of protein molecules. The chiral protein packing found in these capsids originates from the pentagonal Penrose tiling (PPT) due to a specific phason reconstruction needed to fit the protein order at the adjacent dodecahedron faces...
May 10, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28488097/feasibility-of-measurements-of-valve-dimensions-in-en-face-3d-transesophageal-echocardiography
#18
Sarah Eibel, Edwin Turton, Chirojit Mukherjee, Carmine Bevilacqua, Joerg Ender
Newest 3D software allows measurements directly in the en-face-3D TEE mode. Aim of the study was to ascertain whether measurements performed in the en-face-3D TEE mode are comparable with conventional measurement methods based on 2D TEE and 3D using the multiple plane reconstruction mode with the Qlab(®) software. En-face-3D TEE is used more frequently in daily clinical routine during cardiac operations. So far measurements could only be done based on 2D images or with the use of multi planar reconstruction mode with additional software...
May 9, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28487259/the-role-of-niche-divergence-and-geographic-arrangement-in-the-speciation-of-eared-pheasants-crossoptilon-hodgson-1938
#19
Pengcheng Wang, Yang Liu, Yinong Liu, Yajing Chang, Nan Wang, Zhengwang Zhang
One of the most contentious theories in current ecology is the ecological niche conservatism, which is defined as conservatism among closely related species; however, the ecological niche can also be shifted, as documented in several cases. Genetic drift and ecological divergent selection may cause ecological niche divergence. The current study aims to test whether the ecological niche is conserved or divergent and to determine the main factor that drives ecological niche divergence or conservation. We analyzed the phylogenetic relationship, ecological niche model (ENM) and demographic history of Eared Pheasants in the genus Crossoptilon (Galliformes: Phasianidae) to test niche conservatism with respect to different geographically distributed patterns...
May 6, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28483358/induced-membrane-technique-combined-with-two-stage-internal-fixation-for-the-treatment-of-tibial-osteomyelitis-defects
#20
Fei Luo, Xiaohua Wang, Shulin Wang, Jingshu Fu, Zhao Xie
INTRODUCTION: The purpose of this study was to observe the effects of induced membrane technique combined with two-stage internal fixation in the treatment of tibial osteomyelitis defects. METHODS: A retrospective analyses for 67 cases of tibialosteomyelitis defects were admitted to our department between September 2012 to February 2015, which were treated with induced membrane technique. At the first stage, implanted with a PMMA cement spacer in the defects after radical debridement and fixed with reconstructive locked plate...
April 26, 2017: Injury
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