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https://www.readbyqxmd.com/read/28719779/cement-casting-to-optimize-reconstruction-of-chronic-osteochondral-lesions-of-the-talus
#1
Jorge Pulgar, Mario Escudero, Giovanni Carcuro, Adam Schiff, Manuel Pellegrini
Few surgical techniques have been described for reconstruction in massive osteochondral lesions of the talus, and there is limited evidence of techniques for accurately reproducing native talar anatomy with bone auto/allograft techniques. In this article, we present a novel technique, which is highly reproducible, using bone cement to restore the congruence and anatomy of the ankle joint. LEVELS OF EVIDENCE: Level V: Technical tip.
August 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28718394/multiple-possible-inaccuracies-cast-doubt-on-a-recent-report-suggesting-selective-serotonin-reuptake-inhibitors-to-be-toxic-and-ineffective
#2
Fredrik Hieronymus, Alexander Lisinski, Jakob Näslund, Elias Eriksson
According to a systematic review on the use of selective serotonin reuptake inhibitors (SSRIs) in adult depression that was recently published in BMC Psychiatry, the results of which have been widely disseminated in lay media, these drugs increase the risk for serious adverse events (SAEs) while exerting poor antidepressant efficacy. A cursory analysis, however, suggests the analysis of SAEs conducted by the authors to be marred by both methodological inaccuracies and blatant errors. After having corrected for these apparent mistakes, we conducted a sensitivity analysis in which we also accounted for a possible moderating effect of age; while this suggests SSRIs to be safe drugs in the non-elderly, they do confirm what is already known, that is, that they may enhance the risk for SAEs in the old...
July 18, 2017: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/28718329/assessment-of-forearm-rotational-control-using-4-upper-extremity-immobilization-constructs
#3
Ayesha M Rahman, Nicole Montero-Lopez, Richard M Hinds, Michael Gottschalk, Eitan Melamed, John T Capo
BACKGROUND: Forearm immobilization techniques are commonly used to manage distal radius, scaphoid, and metacarpal fractures. The purpose of our study was to compare the degree of rotational immobilization provided by a sugar-tong splint (STS), short arm cast (SAC), Munster cast (MC), and long arm cast (LAC) at the level of the distal radioulnar joint (DRUJ), carpus, and metacarpals. METHODS: Seven cadaveric upper extremity specimens were mounted to a custom jig with the ulnohumeral joint fixated in 90° of flexion...
February 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28718309/intra-articular-fracture-of-the-base-of-the-first-metacarpal-bone-treatment-through-a-volar-approach
#4
Violeta Levy, Marcelo Mazzola, Martín Gonzalez
BACKGROUND: Management of Bennett fractures has been controversial. Early reports supported closed reduction and casting with or without percutaneous pinning. Later, open reduction and internal fixation was advocated. The purpose of this article is to assess the surgical treatment using a direct volar approach. METHODS: Between March 2008 and December 2014, 21 patients with intra-articular first metacarpal fractures displaced more than 1 mm were operated on using a direct volar approach...
January 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28718246/effect-of-cobalt-chromium-alloy-re-use-in-dentistry-on-its-castability-value
#5
Yogendra Imran, Muhammad Raza, Muhammad Sartaj Khan, Yousaf Hayat
BACKGROUND: Re-use of dental casting alloy is a routine practice, which is carried out with the motive to conserve resources. There have been studies on the re-use of alloys but a controversy exists as to the proportioning ratio of fresh to used alloy and the number of time an alloy can be recast. The objective of the study was to measure the effect of addition of 50% by weight used alloy to the fresh Cobalt-Chromium alloy on the castability. METHODS: In the present in-vitro experimental study A total of 20 specimens were cast by flame centrifuge, using modified Whitlock's method...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28718240/ponseti-technique-for-management-of-congenital-idiopathic-club-foot
#6
Muhammad Qaisar Shah, Alamzeb Khan, Muhammad Shoaib Zardad, Rizwana Iqbal, Sajjad Ahmed
BACKGROUND: Clubfoot or congenital talipes equinovarus, is a congenital deformity of the foot. It consists of cavus, adduction, varus and equinus. This is due to medial displacement of navicular and calcaneus around the talus. Talus is in equinus. Medial deviation of the head and neck of talus is due to force of calcaneus on talus. METHODS: This descriptive case series study was conducted at Orthopaedic unit, Ayub Teaching Hospital, Abbottabad from 1st August 2015 to 31st January 2016 to determine the frequency of idiopathic clubfoot correction, by using the Ponseti method...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28717790/soft-and-hard-tissue-response-%C3%A2-to-an-implant-with-a-convergent-%C3%A2-collar-in-the-esthetic-area-%C3%A2-preliminary-report-at-18-months
#7
Luigi Canullo, Marco Tallarico, Guillermo Pradies, Fabio Marinotti, Ignazio Loi, Roberto Cocchetto
AIM: The purpose of this prospective cohort study was to investigate, over an 18-month period, soft and hard tissue response to a transmucosal implant with a convergent collar inserted in the anterior maxillary esthetic area. MATERIALS AND METHODS: From June 2013 to January 2014, 14 consecutive patients were enrolled (7 men and 7 women; mean age 63.7 ± 14 years) with 20 implants, needing at least one implant-supported restoration between the canines in the maxillary anterior esthetic area...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28717611/conservative-minimally-invasive-and-open-surgical-repair-for-management-of-acute-ruptures-of-the-achilles-tendon-a-clinical-and-functional-retrospective-study
#8
Gayle Maffulli, Angelo Del Buono, Paula Richards, Francesco Oliva, Nicola Maffulli
BACKGROUND: At present, it is unclear which is the best management for Achilles tendon rupture. PURPOSE: We assess the clinical, functional and imaging outcomes of active patients undergoing 3 different types of management for acute subcutaneous rupture of the Achilles tendon, including conservative cast immobilization, traditional open surgery and percutaneous repair. METHODS: 26 active patients were managed for a rupture of the Achilles Tendon from January 2007 to March 2008...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28715504/megalosauripus-transjuranicus-ichnosp-nov-a-new-late-jurassic-theropod-ichnotaxon-from-nw-switzerland-and-implications-for-tridactyl-dinosaur-ichnology-and-ichnotaxomy
#9
Novella L Razzolini, Matteo Belvedere, Daniel Marty, Géraldine Paratte, Christel Lovis, Marielle Cattin, Christian A Meyer
A new ichnospecies of a large theropod dinosaur, Megalosauripus transjuranicus, is described from the Reuchenette Formation (Early-Late Kimmeridgian, Late Jurassic) of NW Switzerland. It is based on very well-preserved and morphologically-distinct tracks (impressions) and several trackways, including different preservational types from different tracksites and horizons. All trackways were excavated along federal Highway A16 near Courtedoux (Canton Jura) and systematically documented in the field including orthophotos and laserscans...
2017: PloS One
https://www.readbyqxmd.com/read/28715169/fabrication-of-biocompatible-functional-and-transparent-hybrid-films-based-on-silk-fibroin-and-epoxy-silane-for-biophotonics
#10
Robson Rosa da Silva, Mauricio Cavicchioli, Lais Rocalho de Lima, Caio Gomide Otoni, Hernane da Silva Barud, Silvia Helena Santagneli, Agnieszka Tercjak, André Capaldo Amaral, Renata Aquino Carvalho, Sidney José Lima Ribeiro
In this work we explored the fabrication of flexible and transparent hybrids of silk fibroin and epoxy modified siloxane for photonic applications. It is well known that regenerated silk fibroin (SF) solutions can form free-standing films with high transparency. Although SF has a restricted number of chemically reactive side groups, the main issues of as-casted pristine SF films regard the high solubility into aqueous media, brittleness, and low thermal stability. The design of SF films with enhanced functionality but yet highly transparent triggers new opportunities on broader range of applications in biophotonics...
July 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28714897/development-of-three-dimensional-dental-scanning-apparatus-using-structured-illumination
#11
Jae Sung Ahn, Anjin Park, Ju Wan Kim, Byeong Ha Lee, Joo Beom Eom
We demonstrated a three-dimensional (3D) dental scanning apparatus based on structured illumination. A liquid lens was used for tuning focus and a piezomotor stage was used for the shift of structured light. A simple algorithm, which detects intensity modulation, was used to perform optical sectioning with structured illumination. We reconstructed a 3D point cloud, which represents the 3D coordinates of the digitized surface of a dental gypsum cast by piling up sectioned images. We performed 3D registration of an individual 3D point cloud, which includes alignment and merging the 3D point clouds to exhibit a 3D model of the dental cast...
July 15, 2017: Sensors
https://www.readbyqxmd.com/read/28713829/experimental-verification-of-capn1-and-cast-gene-polymorphisms-in-different-generations-of-da-heng-broilers
#12
Yu-Guang Zhou, Yong Xiong, Chao-Wu Yang, Xiao-Song Jiang, Jin-Shan Ran, Jie Jin, Ye Wang, Dan Lan, Peng Ren, Yao-Dong Hu, Yi-Ping Liu
The micromolar calcium activated neutral protease (CAPN1) and calpastatin (CAST) have been widely regarded as genes related to muscle growth and meat tenderness. The objective of this study was to verify the association of SNPs of CAPN1 and CAST genes with carcass and tenderness traits and search the possible change patterns of SNPs in CAPN1 and CAST genes in six generations of broiler breeding process for growth rate, efficiency, and reproduction, during the third generation and the ninth generation, respectively...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28713110/an-innovative-approach-to-retention-thermoplastic-retainer
#13
K A Adam Ozeer, Sumitha A David, Umar Mohamed, P C Sunil, Sam Paul, Parson Paul
AIM: The aim of this study was to design and introduce a retainer that overcomes the common shortcomings seen in other retainers. MATERIALS AND METHODS: Hard thermoplastic sheet of 0.5 mm thickness is vacuum or pressure-molded onto the patient cast. Lingual portion of the retainer is trimmed according to the contours of the anterior teeth. Contact points between the maxillary and mandibular anterior teeth are marked on the retainer and reduced. Punch cut holes are placed on the retainer for the exit of flash and air bubbles while fixation...
July 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28712382/design-and-fabrication-of-a-three-dimensional-in-vitro-system-for-modeling-vascular-stenosis
#14
Rebecca S Jones, Pin H Chang, Tzlil Perahia, Katrina A Harmon, Lorain Junor, Michael J Yost, Daping Fan, John F Eberth, Richard L Goodwin
Vascular stenosis, the abnormal narrowing of blood vessels, arises from defective developmental processes or atherosclerosis-related adult pathologies. Stenosis triggers a series of adaptive cellular responses that induces adverse remodeling, which can progress to partial or complete vessel occlusion with numerous fatal outcomes. Despite its severity, the cellular interactions and biophysical cues that regulate this pathological progression are poorly understood. Here, we report the design and fabrication of a three-dimensional (3D) in vitro system to model vascular stenosis so that specific cellular interactions and responses to hemodynamic stimuli can be investigated...
July 17, 2017: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/28712373/impact-of-animal-density-on-cattle-nutrition-in-dry-mediterranean-rangelands-a-faecal-near-ir-spectroscopy-aided-study
#15
S Y Landau, L Dvash, Y Yehuda, H Muklada, G Peleg, Z Henkin, H Voet, E D Ungar
In the context of determining the sustainable carrying capacity of dry-Mediterranean herbaceous rangelands, we examined the effect of animal density on cattle nutrition, which is fundamental to animal performance and welfare. The effects on dietary components of low (0.56 cows/ha; L) and high (1.11 cows/ha; H) animal densities were monitored for three consecutive years in grazing beef cows. In the dry season (summer and early autumn), cows had free access to N-rich poultry litter (PL) given as a dietary supplement...
July 17, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28710840/characterization-of-scientific-studies-usually-cited-as-evidence-of-adverse-effects-of-gm-food-feed
#16
REVIEW
M A Sánchez, W A Parrott
GM crops are the most studied crops in history. Approximately 5% of the safety studies on them show adverse effects that are a cause for concern, and tend to be featured in media reports. Although these reports are based on just a handful of GM events, they are used to cast doubt on all GM crops. Furthermore, they tend to come from just a few laboratories and are published in less important journals. Importantly, a close examination of these reports invariably shows methodological flaws that invalidate any conclusions of adverse effects...
July 15, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28709911/increased-drug-load-and-polymer-compatibility-of-bilayered-orodispersible-films
#17
J Carolina Visser, Oekie A F Weggemans, René J Boosman, Katja U Loos, Henderik W Frijlink, Herman J Woerdenbag
The addition of enalapril maleate to a casting solution for orodispersible films (ODFs) containing hypromellose and carbomer 974P as film forming agents (standard casting solution, SCS) caused a dose dependent reduction of the viscosity. This phenomenon was a serious problem in the preparation of ODFs with an increased enalapril load (>1mg per ODF) when using the solvent casting method. The aim of the present work was twofold. Firstly, the influence of enalapril on the viscosity of SCS was studied in more detail...
July 12, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28709680/patient-satisfaction-with-laser-sintered-removable-partial-dentures-a-crossover-pilot-clinical-trial
#18
Balqees Almufleh, Elham Emami, Omar Alageel, Fabiana de Melo, Francois Seng, Eric Caron, Samer Abi Nader, Ashwaq Al-Hashedi, Rubens Albuquerque, Jocelyne Feine, Faleh Tamimi
STATEMENT OF PROBLEM: Clinical data regarding newly introduced laser-sintered removable partial dentures (RPDs) are needed before this technique can be recommended. Currently, only a few clinical reports have been published, with no clinical studies. PURPOSE: This clinical trial compared short-term satisfaction in patients wearing RPDs fabricated with conventional or computer-aided design and computer-aided manufacturing (CAD-CAM) laser-sintering technology. MATERIAL AND METHODS: Twelve participants with partial edentulism were enrolled in this pilot crossover double-blinded clinical trial...
July 11, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28709674/accuracy-of-cad-cam-fabricated-removable-partial-dentures
#19
Christin Arnold, Jeremias Hey, Ramona Schweyen, Jürgen M Setz
STATEMENT OF PROBLEM: The conventional fabrication of removable partial dentures (RPDs) is a complex, error-prone, time-consuming, and expensive process. The use of computer-aided design and computer-aided manufacturing (CAD-CAM) techniques, especially rapid prototyping, promises a more effective method for fabricating RPD frameworks. PURPOSE: The purpose of this in vitro study was to evaluate the fit of RPD clasps fabricated by means of 4 different CAD-CAM-systems and to compare those fittings with that of the conventional lost-wax casting technique (LWT)...
July 11, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28709673/stereophotogrammetric-impression-making-for-polyoxymethylene-milled-immediate-partial-fixed-dental-prostheses
#20
Miguel Gómez-Polo, Cristina Gómez-Polo, Jaime Del Río, Rocío Ortega
Immediate post-extraction and same-day placement of interim prostheses have increased patient acceptance of implant-supported prostheses. However, for immediate prostheses supported by multiple implants, meeting passive fit and esthetic standards is often challenging. In this clinical report, implant photogrammetry was combined with conventionally obtained digitized casts to prepare an interim, milled prosthesis from a polyoxymethylene (POM) disk, using computer-aided design and computer-aided manufacturing techniques...
July 11, 2017: Journal of Prosthetic Dentistry
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