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https://www.readbyqxmd.com/read/27930470/correction-of-lying-ears-by-augmentation-of-the-conchoscaphal-angle
#1
Sung-Eun Kim, Chi-Ho Yeo, Taegon Kim, Yong-Ha Kim, Jun Ho Lee, Kyu-Jin Chung
Lying ears are defined as ears that protrude less from the head, and in frontal view, are characterized by lateral positioning of antihelical contour relative to the helical rim. These aesthetically displeasing ears require correction in accord with the goals of otoplasty stated by McDowell. The authors present a case of lying ears treated by correcting the conchomastoid angle using Z-plasty, resection of posterior auricular muscle, and correction of the conchoscaphal angle by releasing cartilage using 2 full-thickness incisions and grafting of a conchal cartilage spacer...
December 7, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27925047/a-pioneering-healthcare-model-applying-large-scale-production-concepts-principles-and-performance-after-more-than-11-000-transplants-at-hospital-do-rim
#2
José Medina Pestana
The kidney transplant program at Hospital do Rim (hrim) is a unique healthcare model that applies the same principles of repetition of processes used in industrial production. This model, devised by Frederick Taylor, is founded on principles of scientific management that involve planning, rational execution of work, and distribution of responsibilities. The expected result is increased efficiency, improvement of results and optimization of resources. This model, almost completely subsidized by the Unified Health System (SUS, in the Portuguese acronym), has been used at the hrim in more than 11,000 transplants over the last 18 years...
October 2016: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/27907157/human-bone-derived-collagen-for-the-development-of-an-artificial-corneal-endothelial-graft-in-vivo-results-in-a-rabbit-model
#3
Natalia Vázquez, Manuel Chacón, Carlos A Rodríguez-Barrientos, Jesús Merayo-Lloves, Miguel Naveiras, Begoña Baamonde, Jose F Alfonso, Iriana Zambrano-Andazol, Ana C Riestra, Álvaro Meana
Corneal keratoplasty (penetrating or lamellar) using cadaveric human tissue, is nowadays the main treatment for corneal endotelial dysfunctions. However, there is a worldwide shortage of donor corneas available for transplantation and about 53% of the world's population have no access to corneal transplantation. Generating a complete cornea by tissue engineering is still a tough goal, but an endothelial lamellar graft might be an easier task. In this study, we developed a tissue engineered corneal endothelium by culturing human corneal endothelial cells on a human purified type I collagen membrane...
2016: PloS One
https://www.readbyqxmd.com/read/27896189/simple-correction-of-alar-retraction-by-conchal-cartilage-extension-grafts
#4
Yong Jun Jang, Sung Min Kim, Dae Hyun Lew, Seung Yong Song
BACKGROUND: Alar retraction is a challenging condition in rhinoplasty marked by exaggerated nostril exposure and awkwardness. Although various methods for correcting alar retraction have been introduced, none is without drawbacks. Herein, we report a simple procedure that is both effective and safe for correcting alar retraction using only conchal cartilage grafting. METHODS: Between August 2007 and August 2009, 18 patients underwent conchal cartilage extension grafting to correct alar retraction...
November 2016: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/27845304/partial-aortic-root-remodeling-for-root-reconstruction-in-patients-with-acute-type-a-dissection
#5
Fuhua Huang, Liangpeng Li, Wei Qin, Cunhua Su, Liming Wang, Liqiong Xiao, Xin Chen
In the present study, we reported our experience with partial aortic root remodeling for root reconstruction in patients with acute type A dissection, which involves in non-coronary sinus and/or the right coronary sinus with just one trimmed Dacron graft. Between February 2001 and May 2010, we performed partial aortic root remodeling in 40 patients, who underwent emergency surgical intervention. The dissected sinuses were excised leaving a 3-5 mm rim of the aortic wall from the attached aortic valve cusps. A short piece (4-5 cm) of collagen coated woven polyester vascular prosthesis was trimmed with one or two "tongues" to reconstruct the non-coronary sinus and/or the right coronary sinus, but without using separated patches...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27825707/reverse-shoulder-arthroplasty-with-glenoid-bone-grafting-for-anterior-glenoid-rim-fracture-associated-with-glenohumeral-dislocation-and-proximal-humerus-fracture
#6
R Garofalo, F Brody, A Castagna, E Ceccarelli, S G Krishnan
BACKGROUND: Large fractures of the anterior glenoid rim can result in persisting instability and osteoarthritis of the glenohumeral joint When this fracture is associated with a glenohumeral dislocation and proximal humerus fracture could be a concern. The goal of this paper was to evaluate the clinical and radiological outcomes and complications of reverse shoulder arthroplasty (RSA) and glenoid bone graft in cases with a significant anterior glenoid fracture associated with a proximal humerus fracture...
December 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27817919/incidence-and-outcomes-of-positive-donor-corneoscleral-rim-fungal-cultures-after-keratoplasty
#7
Jesse M Vislisel, Kenneth M Goins, Michael D Wagoner, Gregory A Schmidt, Benjamin T Aldrich, Jessica M Skeie, Cynthia R Reed, M Bridget Zimmerman, Mark A Greiner
PURPOSE: To determine the incidence of positive corneoscleral donor rim fungal cultures after keratoplasty and to report clinical outcomes of grafts with culture-positive donor rims. DESIGN: Retrospective cohort study. PARTICIPANTS: Consecutive donor corneas and keratoplasty recipients at a single tertiary referral center over 20 years. METHODS: Patient charts were reviewed to determine the incidence of positive donor rim fungal cultures and clinical outcomes of all grafts using contaminated tissue...
November 3, 2016: Ophthalmology
https://www.readbyqxmd.com/read/27737392/comparative-study-between-kidney-transplantation-with-deceased-donor-expanded-criteria-and-donor-standard-criteria-in-a-single-center-in-brazil
#8
Luana Soriano Mota, Claudia Maria Costa de Oliveira, Francisco Martho Leal Pinheiro, Larissa Costa de Oliveira Santos, Danilo Gonçalves Nóbrega, Paula Fbc Fernandes, Alda Angélica de Melo Costa, Sônia Leite da Silva
Introduction: Kidney transplants with expanded criteria donor have been associated with improved patient survival compared to those who remain on dialysis. Objective: To compare renal function and survival of the kidney graft of deceased donor with expanded criteria and standard criteria over a year in a single transplant center. Methods: 255 kidney transplant recipients with deceased donor were included in the study between the years 2011 to 2013 and they were separated into two groups according to the type of donor (expanded criteria donor - ECD - and standard criteria donor - SCD)...
July 2016: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/27734111/reliability-of-a-ct-reconstruction-for-preoperative-surgical-planning-in-the-arthroscopic-latarjet-procedure
#9
Alexandre Hardy, Philippe Loriaut, Benjamin Granger, Ahmed Neffati, Audrey Massein, Laurent Casabianca, Hugues Pascal-Moussellard, Antoine Gerometta
PURPOSE: The arthroscopic Latarjet procedure has provided reliable results in the treatment of anterior shoulder instability. However, this procedure remains technically challenging and is related to several complications. The morphology of the coracoid and the glenoid are inconsistent. Inadequate coracoid and glenoid preparing may lead to mismatching between their surfaces. Inadequate screws lengthening and orientation are a major concern. Too long screws can lead to suprascapular nerve injuries or hardware irritation, whereas too short screws can lead to nonunions, fibrous unions or migration of the bone block...
October 12, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27696125/meniscal-allograft-subluxations-are-not-associated-with-preoperative-native-meniscal-subluxations
#10
Bum-Sik Lee, Seong-Il Bin, Jong-Min Kim, Jae Hyan Kim, Eic Ju Lim
PURPOSE: To determine the relationship between preoperative subluxation of the original menisci and postoperative graft subluxation after lateral meniscal allograft transplantation (MAT). METHODS: Fourteen patients who underwent isolated lateral MATs in meniscus-deficient knees with a low-grade chondral lesion (≤ICRS grade 2) were assessed. Lateral subluxation of the native meniscus before meniscectomy and those of remaining meniscal tissue before MAT were measured on mid-coronal MRI scans taken at each time point...
September 30, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27680524/solid-implants-in-facial-plastic-surgery-potential-complications-and-how-to-prevent-them
#11
Krishna Patel, Kathleyn Brandstetter
Allogenic implants are an effective alternative to autologous grafts in the reconstruction of facial defects. These implants are used to reconstruct a variety of bony and soft-tissue defects, including the frontal and temporal regions; internal orbit; infraorbital rim; malar, paranasal, and nasal regions; mandible; and chin. In comparison to their autologous counterparts, alloplastic materials are more readily available, lack donor-site morbidity, decrease surgical time and cost, and still have relatively good postoperative tissue tolerance...
October 2016: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/27651480/primary-open-rhinoplasty
#12
Arash Momeni, Ronald P Gruber
Rhinoplasty is perhaps the most complex cosmetic surgery procedure performed today. It is characterized by an intricate interplay between form and function, with patient satisfaction being dependent not only on improvement of nasal appearance but also resolution of preexisting airway symptoms. The prerequisite for successful execution of this challenging procedure is a thorough understanding of nasal anatomy and physiology. Hence, a thorough preoperative evaluation is at least as important and the surgical skill in performing the operation...
October 2016: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/27634468/the-j-shaped-bone-graft-for-anatomic-glenoid-reconstruction-a-10-year-clinical-follow-up-and-computed-tomography-osteoabsorptiometry-study
#13
Christian Deml, Peter Kaiser, Wouter F van Leeuwen, Magdalena Zitterl, Simon A Euler
BACKGROUND: The J-shaped bone graft procedure is one of the recommended methods to reconstruct significant glenoid rim defects. PURPOSE: To evaluate long-term (minimum 10-year) clinical outcomes and show further details of the remodeling effects on the articular cavity of the glenoid after J-shaped bone grafting. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: A total of 14 patients treated with a J-shaped bone graft procedure were observed clinically...
September 15, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27614163/grafting-pnipaam-from-%C3%AE-barrel-shaped-transmembrane-nanopores
#14
Himanshu Charan, Julia Kinzel, Ulrich Glebe, Deepak Anand, Tayebeh Mirzaei Garakani, Leilei Zhu, Marco Bocola, Ulrich Schwaneberg, Alexander Böker
The research on protein-polymer conjugates by grafting from the surface of proteins has gained significant interest in the last decade. While there are many studies with globular proteins, membrane proteins have remained untouched to the best of our knowledge. In this study, we established the conjugate formation with a class of transmembrane proteins and grow polymer chains from the ferric hydroxamate uptake protein component A (FhuA; a β-barrel transmembrane protein of Escherichia coli). As the lysine residues of naturally occurring FhuA are distributed over the whole protein, FhuA was reengineered to have up to 11 lysines, distributed symmetrically in a rim on the membrane exposed side (outside) of the protein channel and exclusively above the hydrophobic region...
November 2016: Biomaterials
https://www.readbyqxmd.com/read/27593499/immobilization-of-monolayers-incorporating-cu-funnel-complexes-onto-gold-electrodes-application-to-the-selective-electrochemical-recognition-of-primary-alkylamines-in-water
#15
Gaël De Leener, Ferdinand Evoung-Evoung, Angélique Lascaux, Jeremy Mertens, Ana Gabriela Porras-Gutierrez, Nicolas Le Poul, Corinne Lagrost, Diana Over, Yann R Leroux, François Reniers, Philippe Hapiot, Yves Le Mest, Ivan Jabin, Olivia Reinaud
The immobilization of a copper calix[6]azacryptand funnel complex on gold-modified electrodes is reported. Two different methodologies are described. One is based on alkyne-terminated thiol self-assembled monolayers. The other relies on the electrografting of a calix[4]arene platform bearing diazonium functionalities at its large rim and carboxylic functions at its small rim, which is post-functionalized with alkyne moieties. In both cases, the CuAAC electroclick methodology proved to be the method of choice for grafting the calix[6]azacryptand onto the monolayers...
October 5, 2016: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/27591572/colorimetric-detection-of-riboflavin-by-silver-nanoparticles-capped-with-%C3%AE-cyclodextrin-grafted-citrate
#16
Qi Ma, Jinping Song, Sufang Zhang, Meifang Wang, Yong Guo, Chuan Dong
β-Cyclodextrin-grafted citrate was used for the first time as a stabilizer and reducer to prepare silver nanoparticles (AgNPs). The as-synthesized AgNPs were further characterized by UV-vis absorption spectroscopy, powder X-ray diffraction spectroscopy, and transmission electron microscopy. The results show that the presence of riboflavin caused severe aggregation of the nanoparticles, thereby inducing a colour change from yellow to red. (1)H NMR further verified the formation of non-inclusion complexes between riboflavin and β-cyclodextrin-grafted citrate...
August 24, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27546473/revision-total-hip-arthroplasty-using-an-acetabular-reinforcement-ring-with-a-hook-a-precise-follow-up-at-average-11-4-years-of-a-previous-report
#17
Kyung-Soon Park, Jong-Keun Seon, Keun-Bae Lee, Sung-Kyu Kim, Chee-Ken Chan, Taek-Rim Yoon
BACKGROUND: This study aims at determining the average long-term result of revision total hip arthroplasty (THA) using the acetabular reinforcement ring with a hook (ARRH) and bone grafting in severe acetabular bony defect. Expected 15-year survival of ARRH in revision THA is included in the study. METHODS: Retrospective review of 48 patients (48 hips) with follow-up duration of average 11.4 years (range, 6.1-21.4 years) was conducted. At each follow-up, Harris hip score was used to assess functional outcome, and radiographic acetabular component osteolysis was measured by DeLee and Charnley classification...
July 21, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27494582/the-articulated-alar-rim-graft-reengineering-the-conventional-alar-rim-graft-for-improved-contour-and-support
#18
Annelyse C Ballin, Haena Kim, Elizabeth Chance, Richard E Davis
Surgical refinement of the wide nasal tip is challenging. Achieving an attractive, slender, and functional tip complex without destabilizing the lower nasal sidewall or deforming the contracture-prone alar rim is a formidable task. Excisional refinement techniques that rely upon incremental weakening of wide lower lateral cartilages (LLC) often destabilize the tip complex and distort tip contour. Initial destabilization of the LLC is usually further exacerbated by "shrink-wrap" contracture, which often leads to progressive cephalic retraction of the alar margin...
August 2016: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/27462534/arthroscopic-labrum-reconstruction-in-the-hip-using-the-indirect-head-of-rectus-femoris-as-a-local-graft-surgical-technique
#19
Zachary T Sharfman, Eyal Amar, Thomas Sampson, Ehud Rath
The importance of the acetabular labrum has been well documented for the health and function of the hip joint. Labral reconstruction has proven effective but often requires the use of a cadaveric allograft or auto graft from the fascia lata or gracilis. The indirect head of the rectus femoris is in close proximity with the anterior superior acetabulum, which is the most common site of labral tears. Using the indirect head of the rectus femoris as a local graft minimizes surgical invasiveness by mitigating the need to harvest the graft from a different location, in case of an autograft, and by minimizing donor site morbidity and damage to local tissues...
April 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27362885/donor-tissue-preparation-for-bowman-layer-transplantation
#20
Esther A Groeneveld-van Beek, Jack Parker, Jessica T Lie, Vincent Bourgonje, Lisanne Ham, Korine van Dijk, Jacqueline van der Wees, Gerrit R J Melles
PURPOSE: To describe and compare 2 preparation techniques for Bowman layer (BL) grafts for use in BL transplantation. METHODS: A retrospective evaluation of the 2 methods for preparing BL grafts was performed, that is, BL graft preparation from donor globes not eligible for penetrating keratoplasty or endothelial keratoplasty (technique I, n = 36) and BL graft preparation from previously excised corneoscleral buttons (technique II, n = 36) that could not be used for PK or had been denuded of Descemet membrane and endothelium for Descemet membrane endothelial keratoplasty graft preparation...
June 29, 2016: Cornea
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