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https://www.readbyqxmd.com/read/28106890/assessment-of-a-new-hydrophilic-acrylic-supplementary-iol-for-sulcus-fixation-in-pseudophakic-cadaver-eyes
#1
N Reiter, L Werner, J Guan, J Li, K T Tsaousis, N Mamalis, S Srinivasan
PurposeManagement of refractive errors after cataract surgery includes spectacles or contact lens, secondary laser vision correction, intraocular lens (IOL) exchange, or piggyback lens implantation. We evaluated for the first time a single-piece hydrophilic acrylic IOL designed for supplementary sulcus fixation in postmortem pseudophakic human eyes.MethodsPseudophakic human cadaver eyes were imaged by anterior segment optical coherence tomography (AS-OCT) to assess position of the primary IOL. Eyes were prepared as per the Miyake-Apple technique...
January 20, 2017: Eye
https://www.readbyqxmd.com/read/28104502/staying-away-from-the-optic-nerve-a-formula-for-modifying-glaucoma-drainage-device-surgery-in-pediatric-and-other-small-eyes
#2
Milica A Margeta, Anthony N Kuo, Alan D Proia, Sharon F Freedman
PURPOSE: To provide guidelines for safe implantation of glaucoma drainage devices (GDDs) in small and pediatric eyes to avoid contact between the optic nerve (ON) and the posterior edge of the GDD plate. METHODS: We developed a formula for calculating limbus-to-ON distance to estimate the available "real estate" for GDD placement in small eyes. The formula was validated using eyes of pediatric decedents undergoing clinical autopsy, with axial lengths (AL) of 15-24 mm...
January 16, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28100938/public-perceptions-of-plastic-surgery-practice-in-brazil
#3
Rafael Denadai, Karin Milleni Araujo, Hugo Samartine, Rodrigo Denadai, Cassio Eduardo Raposo-Amaral
The perception of medical specialists by the public has a significant effect on health-care decisions, research funding allocation, and implantation of educational measures. The purpose of this survey was to assess the public's perception of the field of plastic surgery practice. General public members (n = 1290) completed a survey where they matched nine specialties with 28 plastic surgery-related scenarios. Response patterns were distributed as "plastic surgeon alone," "plastic surgeon combined with other specialists," or "no plastic surgeon...
December 2016: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28098961/angiogenic-and-osteogenic-regeneration-in-rats-via-calcium-phosphate-scaffold-and-endothelial-cell-coculture-with-hbmscs-hucmscs-hipsc-mscs-and-hesc-mscs
#4
Wenchuan Chen, Xian Liu, Qianmin Chen, Chongyun Bao, Liang Zhao, Zhimin Zhu, Hockin H K Xu
Angiogenesis is a limiting factor in regenerating large bone defects. The objective of this study was to investigate angiogenic and osteogenic effects of coculture on calcium phosphate cement (CPC) scaffold using human umbilical vein endothelial cells (hUVECs) and mesenchymal stem cells (MSCs) from different origins for the first time. hUVECs were cocultured with four types of cells: human umbilical cord MSCs (hUCMSCs), human bone marrow MSCs (hBMSCs), and MSCs from induced pluripotent stem cells (hiPSC-MSCs) and embryonic stem cells (hESC-MSCs)...
January 18, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28093860/monolithic-implant-supported-lithium-disilicate-ls2-crowns-in-a-complete-digital-workflow-a-prospective-clinical-trial-with-a-2-year-follow-up
#5
Tim Joda, Marco Ferrari, Urs Brägger
BACKGROUND: The technical development of digital processing allows the production of anatomically full-contoured implant-supported restorations. PURPOSE: The aim of this prospective clinical trial was to analyze the treatment concept of monolithic lithium disilicate (LS2) single-unit restorations in a complete digital workflow. MATERIAL AND METHODS: Forty-four patients were restored with 50 screw-retained monolithic implant LS2 crowns bonded to pre-fabricated titanium abutments on soft tissue level implants (Institut Straumann AG, Basel, Switzerland) in premolar and molar sites...
January 16, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28089150/anticoagulant-bridging-in-left-sided-mechanical-heart-valve-patients
#6
E A Hart, R Jansen, T A Meijs, B J Bouma, R K Riezebos, W Tanis, W J P van Boven, V Hindori, N Wiersma, T Dessing, J Westerink, S A J Chamuleau
BACKGROUND: In preparation for an invasive procedure with a high bleeding risk, patients with a mechanical heart valve temporarily have to discontinue their anticoagulant therapy and are usually bridged with either intravenous unfractionated heparin (UFH) or subcutaneous low-molecular-weight heparin (LMWH). In this study we retrospectively analyzed the safety of UFH versus LMWH as bridging strategy in left-sided mechanical heart valve patients. METHODS: We performed a retrospective multicenter study in four surgical centers in The Netherlands...
January 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28088428/aortic-floating-thrombus-detected-by-computed-tomography-angiography-incidentally-five-cases-and-a-literature-review
#7
Shuyi Yang, Jie Yu, Wenjuan Zeng, Liang Yang, Lin Teng, Yue Cui, Heshui Shi
OBJECTIVE: To analyze the findings of aortic floating thrombus (AFT) on computed tomography angiography (CTA) for a definitive, timely diagnosis and to select a reasonable management course to improve prognosis. METHOD: We retrospectively analyzed imaging findings of 5 patients with AFT detected by CTA, including location, morphology, size, involved aortic segment, concomitant embolism, stent, and dynamic changes during the follow-up. RESULTS: Seven lesions were detected in the initial CTA studies of the 5 patients: 5 aortic intraluminal floating thrombi (3 patients) and 2 aortic in-stents floating thrombi (ASFTs; 2 patients)...
December 22, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28088378/antimicrobial-coated-implants-in-trauma-and-orthopaedics-a-clinical-review-and-risk-benefit-analysis
#8
REVIEW
Volker Alt
Implant-associated infections remain a major issue in orthopaedics and antimicrobial functionalization of the implant surface by antibiotics or other anti-infective agents have gained interest. The goal of this article is to identify antimicrobial coatings, for which clinical data are available and to review their clinical need, safety profile, and their efficacy to reduce infection rates. PubMed database of the National Library of Medicine was searched for clinical studies on antimicrobial coated implants for internal fracture fixation devices and endoprostheses for bone surgery, for which study design, level of evidence, biocompatibility, development of resistance, and effectiveness to reduce infection rates were analyzed...
December 21, 2016: Injury
https://www.readbyqxmd.com/read/28073910/implantation-of-the-subcutaneous-implantable-cardioverter-defibrillator-an-evaluation-of-4-implantation-techniques
#9
Tom F Brouwer, Marc A Miller, Anne-Floor B E Quast, Chandrasekar Palaniswamy, Srinivas R Dukkipati, Vivek Reddy, Arthur A Wilde, Jonathan M Willner, Reinoud E Knops
BACKGROUND: Alternative techniques to the traditional 3-incision subcutaneous implantation of the subcutaneous implantable cardioverter-defibrillator may offer procedural and cosmetic advantages. We evaluate 4 different implant techniques of the subcutaneous implantable cardioverter-defibrillator. METHODS AND RESULTS: Patients implanted with subcutaneous implantable cardioverter-defibrillators from 2 hospitals between 2009 and 2016 were included. Four implantation techniques were used depending on physician preference and patient characteristics...
January 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28073305/human-amniotic-mesenchymal-stromal-cells-as-favourable-source-for-cartilage-repair
#10
Emma Muinos-López, Tamara Hermida-Gómez, Isaac Fuentes-Boquete, Francisco Javier de Toro-Santos, Francisco J Blanco, Silvia María Díaz-Prado
INTRODUCTION: Localized trauma-derived breakdown of the hyaline articular cartilage may progress towards osteoarthritis, a degenerative condition characterized by total loss of articular cartilage and joint function. Tissue engineering technologies encompass several promising approaches with high therapeutic potential for the treatment of these focal defects. However, most of the research in tissue engineering is focused on potential materials and structural cues, while little attention is directed to the most appropriate source of cells endowing these materials...
January 10, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28070934/long-term-outcomes-after-mechanical-aortic-valve-replacement-with-aortic-root-enlargement-in-adolescents
#11
Zhiwei Xu, Qiuxia Shi, Ju Mei, Yan Tan
BACKGROUND: Deciding which prosthetic aortic valve to choose is difficult in adolescents who have not yet met their full growth potential. The aim of this study was to assess long-term outcomes following mechanical aortic valve replacement with aortic root enlargement in adolescents. METHODS: Between September 1997 and December 2006, 58 consecutive adolescents (49 male, 9 female, median age 15.5, range 13 to 17 years) underwent mechanical aortic valve replacement with aortic root enlargement...
January 10, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28070628/osseointegrated-prosthetic-limb-for-the-treatment-of-lower-limb-amputations-experience-and-outcomes
#12
Munjed Al Muderis, William Lu, Jiao Jiao Li
BACKGROUND: Osseointegration has emerged over the past two decades as a dramatically different approach for the treatment of lower limb amputations, which involves direct attachment of the prosthesis to the skeletal residuum. This approach can address many of the socket-interface issues associated with socket prostheses which represent the current standard of care for amputees. The Osseointegrated Prosthetic Limb (OPL) is an osseointegration implant with a new design and improved features compared to other available implant systems...
January 9, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28069511/in-vivo-characterization-of-magnesium-alloy-biodegradation-using-electrochemical-h2-monitoring-icp-ms-and-xps
#13
Daoli Zhao, Tingting Wang, Keaton Nahan, Xuefei Guo, Zhanping Zhang, Zhongyun Dong, Shuna Chen, Da-Tren Chou, Daeho Hong, Prashant N Kumta, William R Heineman
: The effect of widely different corrosion rates of Mg alloys on four parameters of interest for in vivo characterization was evaluated: (1) the effectiveness of transdermal H2 measurements with an electrochemical sensor for noninvasively monitoring biodegradation compared to the standard techniques of in vivo X-ray imaging and weight loss measurement of explanted samples, (2) the chemical compositions of the corrosion layers of the explanted samples by XPS, (3) the effect on animal organs by histology, and (4) the accumulation of corrosion by-products in multiple organs by ICP-MS...
January 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28069172/morphologic-grading-of-euploid-blastocysts-influences-implantation-and-ongoing-pregnancy-rates
#14
Mohamad Irani, David Reichman, Alex Robles, Alexis Melnick, Owen Davis, Nikica Zaninovic, Kangpu Xu, Zev Rosenwaks
OBJECTIVE: To determine whether blastocyst grading can predict pregnancy outcomes in the frozen-thawed embryo transfer (FET) of euploid blastocysts. DESIGN: Retrospective cohort study. SETTING: Academic medical center. PATIENT(S): Women who underwent FET of euploid embryo(s) between January 2013 and December 2015, with blastocysts were divided into four groups based on their morphologic grading before cryopreservation: excellent (≥3AA), good (3-6AB, 3-6BA, 1-2AA), average (3-6BB, 3-6AC, 3-6CA, 1-2AB, 1-2BA), and poor (1-6BC, 1-6CB, 1-6CC, 1-2BB)...
January 6, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28063250/comparative-3d-micro-ct-and-2d-histomorphometry-analysis-of-dental-implant-osseointegration-in-the-maxilla-of-minipigs
#15
Oliver Bissinger, Florian Andreas Probst, Klaus-Dietrich Wolff, Anke Jeschke, Jochen Weitz, Herbert Deppe, Andreas Kolk
AIM: The bone implant contact (BIC) has traditionally been evaluated with histological methods. Thereupon, strong correlations of 2-dimensional (2D) BIC have been detected between μCT and destructive histology. However, due to the high intra-sample variability of BIC values, one histological slice is not sufficient to represent 3D BIC. Therefore, our aim has been to correlate the averaged values of 3-4 histological sections to 3D μCT. MATERIAL AND METHODS: Fifty four implants inserted into the maxilla of 14 minipigs were evaluated...
January 7, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28053904/comparative-study-on-the-osseointegration-of-implants-in-dog-mandibles-according-to-the-implant-surface-treatment
#16
Wook-Jae Yoon, Su-Gwan Kim, Ji-Su Oh, Jae-Seek You, Kyung-In Jeong, Sung-Chul Lim, Mi-Ae Jeong
OBJECTIVES: This study compared the impact of implant surface treatment on the stability and osseointegration of implants in dog mandibles. MATERIALS AND METHODS: Six adult dogs received a total of 48 implants that were prepared using four different surface treatments; resorbable blast media (RBM), hydroxyapatite (HA), hydrothermal-treated HA, and sand blasting and acid etching (SLA). Implants were installed, and dogs were separated into 2- and 4-week groups. Implant stability was evaluated via Periotest M, Osstell Mentor, and removal torque analyzers...
December 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28050958/non-invasive-prediction-of-blastocyst-implantation-ongoing-pregnancy-and-live-birth-by-mass-spectrometry-lipid-fingerprinting
#17
Edson Borges, Daniela P A F Braga, Amanda Souza Setti, Daniela A Montanni, Elaine Cristina Cabral, Marcos N Eberlin, Edson G Lo Turco, Assumpto Iaconelli
OBJECTIVE: To identify lipid markers of blastocyst implantation and ongoing pregnancy by day three culture medium mass spectrometry (MS) fingerprinting. METHODS: For this study, 33 culture media samples were harvested on day three, from 22 patients undergoing day five embryo transfers. All embryos achieved the blastocyst stage and were split into groups based on their implantation (Negative Implantation, n= 14 and Positive Implantation, n= 19). The positive implantation cycles resulted in successful ongoing pregnancies...
December 1, 2016: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28050640/is-the-humeral-stem-useful-in-anatomic-total-shoulder-arthroplasty
#18
Philippe Collin, Tetsu Matsukawa, Pascal Boileau, Ulrich Brunner, Gilles Walch
PURPOSE: Traditionally and since Neer, the humeral side of shoulder arthroplasty consisted of a stemmed component but the real need for stem fixation in total shoulder arthroplasty (TSA) has barely been investigated. The current study evaluated the clinical and radiological outcomes with a stemless TSA. METHODS: Forty-seven patients, 20 female and 27 male patients with an average age of 63, were selected in four orthopaedic centres during a four year period, and implanted with a humeral head prosthesis with a three-fin design and titanium coating...
January 3, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28048210/su-g-jep1-10-feasibility-of-cyberknife-tracking-using-the-previously-implanted-permanent-brachytherapy-seed-cloud
#19
J Cheung, J Cunha, A Sudhyadhom, C McGuinness, M Roach, M Descovich
PURPOSE: Robotic radiosurgery is a salvage treatment option for patients with recurrent prostate cancer. We explored the feasibility of tracking the bolus of permanent prostate implants (PPI) using image recognition software optimized to track spinal anatomy. METHODS: Forty-five inert iodine seeds were implanted into a gelatin-based prostate phantom. Four superficial gold seeds were inserted to provide ground-truth alignment. A CT scan of the phantom (120 kVp, 1 mm slice thickness) was acquired and a single-energy iterative metal artifact reduction (MAR) algorithm was used to enhance the quality of the DRR used for tracking...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046749/su-g-iep1-01-a-novel-mri-post-processing-algorithm-for-visualization-of-the-prostate-ldr-brachytherapy-seeds-and-calcifications-based-on-b0-field-inhomogeneity-correction-and-hough-transform
#20
R Nosrati, A Soliman, A Owrangi, N Ghugre, G Morton, A Pejovic-Milic, W Song
PURPOSE: This study aims at developing an MRI-only workflow for post-implant dosimetry of the prostate LDR brachytherapy seeds. The specific goal here is to develop a post-processing algorithm to produce positive contrast for the seeds and prostatic calcifications and differentiate between them on MR images. METHODS: An agar-based phantom incorporating four dummy seeds (I-125) and five calcifications of different sizes (from sheep cortical bone) was constructed...
June 2016: Medical Physics
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