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https://www.readbyqxmd.com/read/28727432/controlled-functionalisation-of-gold-nanoparticles-with-mixtures-of-calix-4-arenes-revealed-by-infra-red-spectroscopy
#1
Hennie Valkenier, Volodymyr Malytskyi, Pascale Blond, Maurice Retout, Alice Mattiuzzi, Jonathan Goole, Vincent Raussens, Ivan Jabin, Gilles Bruylants
Labile ligands such as thiols and carboxylates are commonly used to functionalise AuNPs, though little control over the composition is possible when mixtures of ligands are used. It was shown recently that robustly functionalised AuNPs can be obtained through the reductive grafting of calix[4]arenes bearing diazonium groups on the large rim. Here, we report a calix[4]arene-tetra-diazonium decorated by four oligo(ethylene glycol) chains on the small rim, which upon grafting gave AuNPs with excellent stability thanks to the C-Au bonds...
July 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28717888/acetabular-labral-reconstruction-using-the-indirect-head-of-the-rectus-femoris-tendon-significantly-improves-patient-reported-outcomes
#2
Eyal Amar, Thomas G Sampson, Zachary T Sharfman, Alyssa Caplan, Noa Rippel, Ran Atzmon, Michael Drexler, Ehud Rath
PURPOSE AND HYPOTHESIS: The aim of this study was to evaluate outcomes after acetabular labral reconstruction using the indirect head of the rectus femoris tendon. The study hypothesis stated that arthroscopic acetabular labral reconstruction may improve patient reported outcomes in patients with labral tears that were not amenable to repair. METHODS: Between 2009 and 2015, the senior author performed 31 acetabular labral reconstructions using the indirect head of the rectus femoris tendon...
July 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28691945/femtosecond-laser-assisted-tuck-in-penetrating-keratoplasty-for-advanced-keratoglobus-with-endothelial-damage
#3
Jorge L Alió Del Barrio, Olena Al-Shymali, Jorge L Alió
PURPOSE: To describe the outcomes of femtosecond laser-assisted tuck-in penetrating keratoplasty as a single-step surgical procedure for visual and anatomical rehabilitation of patients with severe keratoglobus (KTG) and endothelial damage. METHODS: Two eyes of a 7-year-old patient with bilateral severe KTG and previous corneal hydrops were operated. Assisted by the femtosecond laser, both donor and recipient corneas were prepared. An 8.5-mm full-thickness donor tissue with a peripheral partial-thickness rim of 1...
July 6, 2017: Cornea
https://www.readbyqxmd.com/read/28689825/biomechanical-analysis-of-anterior-bone-graft-augmentation-with-reversed-shoulder-arthroplasty-in-large-combined-glenoid-defects-compared-with-total-bony-joint-line-reconstruction-modified-bony-increased-offset-reversed-shoulder-arthroplasty
#4
Matthias Königshausen, Nina Sverdlova, Corinna Mersmann, Christoph Ehlert, Birger Jettkant, Rolf Dermietzel, Thomas Armin Schildhauer, Dominik Seybold
BACKGROUND: The aim of this biomechanical study was to compare 2 surgical techniques for the reconstruction of large, combined, uncontained glenoid defects with reversed shoulder arthroplasty (RSA). METHODS: Three groups of scapulae with RSA were tested by the application of a physiological combination of compressive/shear loads in Sawbones (Pacific Research Laboratories, Inc., Vashon Island, WA, USA) and cadavers. Two of the groups (both Sawbones and cadaveric specimens) consisted of anterior combined defects (14 mm in depth), and the third group served as a control group (only Sawbones specimens)...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28688878/retrospective-review-of-billowing-phenomenon-a-mimic-of-endoleak-following-placement-of-endologix-covered-stent-for-the-treatment-of-abdominal-aortic-aneurysm
#5
Naseem Helo, Arthur C Chang, Christine Hyun, Christian Bianchi, Theodore H Teruya, Alex C Yi, Kenneth S Chon
BACKGROUND: Billowing is a unique CT finding of the Endologix stent graft where a rim of contrast is observed outside the stent's endoskeleton but still contained within the graft cover. The purpose of this study is to evaluate the incidence and clinical outcome of billowing following an Endologix stent graft placement. METHODS: All patients who underwent Abdominal Aortic Aneurysm (AAA) repair with endovascular placement of an Endologix stent graft from January 2002-September 2013 that were followed with imaging were included in the study...
July 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28678580/reconstructive-subperiosteal-midface-lift-a-three-nonvisible-incision-approach
#6
Marco Sales-Sanz, Constanza Barrancos, Hae-Ryung Won-Kim, Andrea Sales-Sanz, César Colmenero
This article describes our surgical technique for subperiosteal midface elevation in patients with paralytic lower eyelid malposition or cicatricial inferior eyelid retraction. Nineteen patients with paralytic lower eyelid malposition and 15 patients with cicatricial inferior eyelid retraction underwent a subperiosteal midface lift (n = 34). The procedure was performed under local anesthesia through three nonvisible incisions. A transconjunctival incision allows preseptal dissection to the orbital rim, followed by a subperiosteal dissection of the midface...
July 5, 2017: Orbit
https://www.readbyqxmd.com/read/28675791/olprinone-protects-liver-from-ischemia-reperfusion-injury-through-oxidative-stress-prevention-and-protein-kinase-akt-activation
#7
Mohamed Bejaoui, Mohamed Amine Zaouali, Rim Sakly, Hassen Ben Abdennebi
Liver ischemia reperfusion (IR) injury is inevitable in surgical procedures such as hepatic resection and liver transplantation. It represents a leading cause of liver graft dysfunction and primary non function after transplantation. Phosphodiesterase (PDE) inhibitors are emerging as effective drugs able to reduce IR damage. The aim of this study was to investigate the effect of selective PDE-3 inhibitor olprinone (Olp) against liver IR injury. Male Wistar rats were subjected to one hour of partial warm ischemia (70%) followed by six hours of reperfusion...
July 4, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28630729/acetabular-rim-length-an-anatomical-study-to-determine-reasonable-graft-sizes-for-labral-reconstruction
#8
Michael R Karns, Sunny H Patel, Jensen Kolaczko, Raymond W Liu, Richard C Mather, Brian J White, Shane J Nho, Michael J Salata
The purpose of this article is to determine normative values for the length of the acetabular rim and detect differences between gender, age, ethnicity, height and leg length. Six measurements were taken on the acetabular rim of 143 cadaveric skeleton specimens (286 acetabula) using a coordinate-measuring device: circumferential (excluding acetabular notch), anterior inferior iliac spine (AIIS)-anterior, AIIS-posterior, 12-3 o'clock, 12-9 o'clock and 11-5 o'clock. Museum specimen height data and leg length data from a previous study were recorded for 109 of 143 specimens...
January 2017: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/28595843/analysis-of-risk-factors-associated-with-unplanned-reoperations-following-pediatric-plastic-surgery
#9
Kevin T Jubbal, Dmitry Zavlin, Edward P Buchanan, Larry H Hollier
BACKGROUND/PURPOSE: Unplanned reoperation (UR) is an outcome measure with multiple advantages that can be used as a standardized tool to assess an institution's quality and safety of medical care. This study aimed to identify parameters associated with an increased likelihood of UR following plastic surgery in patients less than 18 years of age by using a large validated national multicenter database. METHODS/DESCRIPTION: We performed a retrospective analysis of the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) Pediatric database between 2012 and 2014 to identify pediatric patients undergoing primary plastic surgery procedures...
May 18, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28445373/auricular-reconstruction-in-hemifacial-microsomia-with-an-expanded-two-flap-method
#10
Jin Qian, Zhibin Li, Tun Liu, Xu Zhou, Qingguo Zhang
BACKGROUND: Reconstruction of external ear is important for the child/adult with craniofacial deformities to achieve balance and harmony of the face and head. The aim of this study was to investigate the clinical application of an expanded two-flap method for auricular reconstruction in hemifacial microsomia. METHODS: Between January of 2014 and November of 2015, 111 hemifacial microsomia patients with microtia underwent auricular reconstruction with an expanded two-flap method...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28277475/full-thickness-entire-nasal-alar-reconstruction-using-a-forehead-flap-in-asians-no-cartilaginous-infrastructural-lining-is-necessary
#11
Emi Funayama, Yuhei Yamamoto, Hiroshi Furukawa, Naoki Murao, Ryuji Shichinohe, Takeshi Yamao, Toshihiko Hayashi, Akihiko Oyama
Full-thickness defects of the entire nasal ala, including the rim, can be challenging to reconstruct. A forehead flap may provide a more imperceptible and natural-appearing reconstructed nasal ala. Previously, many authors have insisted adding cartilaginous infrastructural support for an entire, full-thickness defect to keep the postoperative alar structure symmetrical. They finally use a forehead flap after thinning of the distal covering portion subcutaneously, possibly for a Caucasian-type nasal ala. However, Asian skin has a thicker and more compact dermis than that of Caucasian skin, and the Asian ala is rounder and thicker...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28273999/introducing-a-favourite-tip-definition-and-projection-with-tripod-suture-in-rhinoplasty
#12
Sadrollah Motamed, Hamidreza Alizadeh Otaghvar, Feizollah Niazi, Seyed Mehdi Moosavizadeh, Babak Motaghedi, Adnan Tizmaghz
INTRODUCTION: Surgical manipulation of the lower lateral cartilages of nasal tip could cause subtle but significant responses to the manipulation. The suture-techniques almost always offer a reliable and dramatic method of tip reshaping without a need to break or interrupt the alar rim strip or even adding tip graft. AIM: The aim of this study was to describe and assess outcomes of a new suture technique in rhinoplasty by using cephalic dome septal rotation suture for better tip definition...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28267399/single-stage-socket-reconstruction-with-vascularised-temporalis-muscle-flap-following-total-orbital-exenteration-description-of-3-surgical-approaches
#13
Kasturi Bhattacharjee, Harsha Bhattacharjee, Ganesh Kuri, Manpreet Singh, Manab Jyoti Barman
We describe the techniques and outcome of three different approaches to transfer the posterior 2/3(rd) temporalis muscle pedicle flap for orbital socket reconstruction following total orbital exenteration. A retrospective interventional series of 9 patients operated between February of 2000 and 2006. We describe three different techniques, namely supraorbital, transorbital and transorbitectomy approach. All patients were followed for minimum of 3 years and muscle trophism with periorbital contour was clinically studied for outcome...
April 2017: Orbit
https://www.readbyqxmd.com/read/28098711/primary-septal-cartilage-graft-for-the-unilateral-cleft-rhinoplasty
#14
Ting-Chen Lu, Chuan-Fong Yao, Susie Lin, Chun-Shin Chang, Philip Kuo-Ting Chen
BACKGROUND: Since 2006, the authors have explored the option of using septal cartilage as an alar rim graft on the cleft side during primary rhinoplasty to improve nasal symmetry. The aim of this study was to compare the nasal shape with or without rim graft. METHODS: A total of 98 patients with unilateral complete cleft lip and palate were included; 39 patients had septal cartilage as the rim graft, and 59 patients did not. Measurements of the nostril height, nostril width, one-fourth medial part of nostril height, nostril area, nasal dome height, and nostril axis were obtained on the cleft and noncleft sides...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28033641/optimizing-the-soft-tissue-triangle-alar-margin-furrow-and-alar-ridge-aesthetics-analysis-and-use-of-the-articulate-alar-rim-graft
#15
Jennifer L Goodrich, B J F Wong
The alar lobule, alar margin, and soft triangle facet are receiving more attention in the literature as critical elements to address both preoperatively and during rhinoplasty. We have found that the use of the articulated alar rim graft (AARG) corrects deficiencies in these areas as well as provides mechanical stability to the external valve. In this article, we describe indications for AARG, describe in detail the procedure for AARG placement, and highlight the transformation AARGs can achieve in two illustrated case studies...
December 2016: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/27938949/dual-purpose-corneal-tissue-for-anterior-lamellar-keratoplasty-and-descemet-s-membrane-endothelial-keratoplasty
#16
C Larena Menant-Tay, Ronan Conlon, Salina Teja, Season Yeung, Joshua Teichman, Setareh Ziai, Kashif Baig
OBJECTIVE: To assess the intraoperative issues and surgical outcomes of preparing a single-donor corneal tissue for same-day use in both deep anterior lamellar keratoplasty (DALK) and Descemet's membrane endothelial keratoplasty (DMEK). DESIGN: Consecutive retrospective case series. PARTICIPANTS: Ten eyes of 10 patients who underwent DALK (5 patients) or DMEK (5 patients) surgery using dual-purpose corneal tissue. METHODS: Five dual-purpose corneoscleral rims were used to prepare tissue for 5 DMEK and 5 DALK procedures...
December 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/27930470/correction-of-lying-ears-by-augmentation-of-the-conchoscaphal-angle
#17
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...
January 2017: 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
#18
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
#19
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
#20
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
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