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https://www.readbyqxmd.com/read/28629601/a-custom-made-temporomandibular-joint-prosthesis-for-fabrication-by-selective-laser-melting-finite-element-analysis
#1
Xiangliang Xu, Danmei Luo, Chuanbin Guo, Qiguo Rong
A novel and custom-made selective laser melting (SLM) 3D-printed alloplastic temporomandibular joint (TMJ) prosthesis is proposed. The titanium-6aluminium-4vanadium (Ti-6Al-4V) condyle component and ultra-high molecular weight polyethylene (UHMWPE) fossa component comprised the total alloplastic TMJ replacement prosthesis. For the condyle component, an optimized tetrahedral open-porous scaffold with combined connection structures, i.e. an inlay rod and an onlay plate, between the prosthesis and remaining mandible was designed...
June 16, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28600871/substitution-urethroplasty-using-oral-mucosa-graft-for-male-anterior-urethral-stricture-disease-current-topics-and-reviews
#2
REVIEW
Akio Horiguchi
Male anterior urethral stricture is scarring of the subepithelial tissue of the corpus spongiosum that constricts the urethral lumen, decreasing the urinary stream. Its surgical management is a challenging problem, and has changed dramatically in the past several decades. Open surgical repair using grafts or flaps, called substitution urethroplasty, has become the gold standard procedure for anterior urethral strictures that are not amenable to excision and primary anastomosis. Oral mucosa harvested from the inner cheek (buccal mucosa) is an ideal material, and is most commonly used for substitution urethroplasty, and lingual mucosa harvested from the underside of the tongue has recently emerged as an alternative material with equivalent outcome...
June 10, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28595251/use-of-turn-in-skin-flaps-for-nasal-lining-reconstruction
#3
Memet Yazar, Sevgi Kurt Yazar, Erol Kozanoğlu, Murat Diyarbakırlıoğlu, Hikmet İhsan Eren
BACKGROUND: Reconstruction of the nasal lining is the most difficult part of complex nasal reconstruction because the mucosa has a unique texture and fineness. Many techniques, ranging from skin grafts to local flaps, have been applied for the reconstruction of the mucosa. In some cases, even free flaps have been used. OBJECTIVE: The aim of this study was to discuss the feasibility of using turn-in flaps in nasal reconstruction. MATERIALS AND METHODS: Seventeen patients with full-thickness nasal defects underwent reconstruction with turn-in flaps...
June 6, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28594740/the-importance-of-registries-in-the-postmarketing-surveillance-of-surgical-meshes
#4
Ferdinand Köckerling, Thomas Simon, Martin Hukauf, Achim Hellinger, Rene Fortelny, Wolfgang Reinpold, Reinhard Bittner
OBJECTIVE: To assess the role of registries in the postmarketing surveillance of surgical meshes. BACKGROUND: To date, surgical meshes are classified as group II medical devices. Class II devices do not require premarket clearance by clinical studies. Ethicon initiated a voluntary market withdrawal of Physiomesh for laparoscopic use after an analysis of unpublished data from the 2 large independent hernia registries-Herniamed German Registry and Danish Hernia Database...
June 7, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28594500/patellofemoral-arthroplasty-an-evolving-science
#5
Jess H Lonner
Patellofemoral arthroplasty (PFA) has long been a clinical option for patients with isolated patellofemoral arthritis. However, a high rate of failure as a result of patellar instability related to component malposition, soft-tissue imbalance, errant surgical techniques, and poor trochlear implant designs contributed to the underutilization of PFA. The evolution of surgical indications, trochlear implant design, component positioning, and soft-tissue balance has led to improved patellar tracking, fewer failures related to patellar instability, and improved functional outcomes...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28586234/the-direct-indirect-technique-for-composite-restorations-revisited
#6
André V Ritter, Newton Fahl, Marcos Vargas, Rodrigo R Maia
In the direct-indirect composite technique, composite is applied to a nonretentive tooth preparation (eg, a noncarious cervical lesion or a veneer/inlay/onlay preparation) without any bonding agent, sculpted to a primary anatomic form, and light-cured. The partially polymerized restoration is then removed from the preparation and finished and tempered extraorally chairside. The finished inlay is bonded to the preparation using a resin-based luting agent. Advantages of this technique include enhanced physical and mechanical properties afforded by the extraoral chairside tempering process because of increased monomer conversion, and greater operator control over the final marginal adaptation, surface finishing and polishing, and anatomy of the restoration, given that these elements are defined outside of the patient's mouth...
June 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28582958/using-osseointegrated-implants-concomitant-with-onlay-bone-grafting-for-auricular-reconstruction
#7
Amin Rahpeyma, Saeedeh Khajehahmadi
Conventional dental implants have been reported for nasal and orbital regions but due to limited thickness of calvarium they are not used in mastoid region. Onlay bone grafting in skull concomitant with implants is a predictable method and experimental animal studies confirm it. Parietal bone and lateral mandibular ramus are suggested source of bone grafts and dental implants with 7 mm length can be used safely. Increased fixture length may lead to increase survival in long term.
June 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28582784/tibial-onlay-posterior-cruciate-ligament-reconstruction-surgical-technique-and-results
#8
Rodrigo Salim, Felipe Marques do Nascimento, Aline Miranda Ferreira, Luciano Fonseca Lemos de Oliveira, Fabricio Fogagnolo, Mauricio Kfuri
No abstract text is available yet for this article.
June 5, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28578984/comparison-of-dimensional-accuracy-of-conventionally-and-digitally-manufactured-intracoronal-restorations
#9
Reza Eftekhar Ashtiani, Leila Nasiri Khanlar, Minoo Mahshid, Alireza Moshaverinia
STATEMENT OF PROBLEM: Advances have been made in digital dentistry for the fabrication of dental prostheses, but evidence regarding the efficacy of digital techniques for the fabrication of intracoronal restorations is lacking. PURPOSE: The purpose of this in vitro study was to compare the dimensional accuracy of intracoronal restorations fabricated with digital and conventional techniques. MATERIAL AND METHODS: A sound mandibular molar tooth received a standard onlay preparation, and onlays were fabricated with 1 of 3 fabrication techniques...
June 2, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28574946/free-diced-cartilage-a-new-application-of-diced-cartilage-grafts-in-primary-and-secondary-rhinoplasty
#10
Christian Kreutzer, Julius Hoehne, Wolfgang Gubisch, Farid Rezaeian, Sebastian Haack
BACKGROUND: Irregularities or deformities of the nasal dorsum after hump reduction account for a significant number of revision rhinoplasties. We therefore developed a technique of meticulously dicing and exactly placing free diced cartilage grafts (fDC), harvested from septum, rib, or ear cartilage. The cartilage paste is used for smoothening, augmentation, or camouflaging of the nasal dorsum in primary or revision rhinoplasties. METHODS: A retrospective analysis of multi-surgeon consecutive open approach rhinoplasties from January to December 2014 was conducted at a single center...
May 31, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28559706/flap-surgical-techniques-for-incisional-hernia-recurrences-a-swine-experimental-model
#11
Florina Popa, Filip Ardelean, Cosmin Pestean, Robert Purdoiu, Oana Rosca, Alexandru Georgescu
BACKGROUND AND AIM: In the age of synthetic prostheses most of hernia studies include a careful examination of the various types of prosthesis, their characteristics and their repair indications. Biological prostheses are also beginning to draw attention. But in terms of recurrence especially for poor or developing countries, the discussion is different, due to their high cost which makes them difficult to afford. In this article we present new flap reconstruction techniques for the reconstruction of the abdominal wall versus mesh repair, applied on swine models, outline the results of each technique, and specify the indications for their use...
2017: Clujul Medical (1957)
https://www.readbyqxmd.com/read/28557648/ventral-hernia-repair-a-meta-analysis-of-randomized-controlled-trials
#12
Julie L Holihan, Craig Hannon, Christopher Goodenough, Juan R Flores-Gonzalez, Kamal M Itani, Oscar Olavarria, Jiandi Mo, Tien C Ko, Lillian S Kao, Mike K Liang
BACKGROUND: From the patient's perspective, a ventral hernia (VH) can cause pain, adversely affect function, increase size, cosmetically distort the abdomen, and incarcerate/strangulate abdominal contents. The only known "cure" for a VH is surgical repair. The aim of this study was to review systematically the published randomized controlled trials (RCTs) of the surgical care of VH. METHOD: A search of the Ovid, MEDLINE, EMBASE, and Cochrane databases was performed to obtain reports of RCTs on the use of mesh reinforcement in abdominal wall hernia repair...
May 30, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28552200/surgical-techniques-used-in-the-rehabilitation-of-partially-edentulous-patients-with-atrophic-posterior-mandibles-a-systematic-review-and-meta-analysis-of-randomized-controlled-clinical-trials
#13
Paolo Toti, Saverio Marchionni, Giovanni Battista Menchini-Fabris, Simone Marconcini, Ugo Covani, Antonio Barone
PURPOSE: Given the lack of general consensus in the literature regarding the best method to rehabilitate partially edentulous patients with extended atrophic edentulous sites in the posterior zone of the mandible, and with a residual ridge height less than 8 mm (with or without bone augmentation procedures), the aim of this systematic review was to analyze all the relevant randomized clinical trials (RCT), and, by means of a meta-analysis of the collected data, draw some conclusions regarding the best available treatments for the rehabilitation of posterior edentulism in partially dentate mandible...
April 27, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28547932/from-intraperitoneal-onlay-mesh-repair-to-preperitoneal-onlay-mesh-repair
#14
REVIEW
George Pei Cheung Yang
Laparoscopic repair for ventral and incisional hernias was first reported in the early 1990s. It uses intraperitoneal only mesh placement to achieve a tension-free repair of the hernia. However, in recent years, there has been greater concern about long-term complication involving intraperitoneal mesh placement. Many case reports and case series have found evidence of mesh adhesion, mesh fistulation, and mesh migration into hollow organs including the esophagus, small bowel, and large bowel, resulting in various major acute abdominal events...
May 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28541865/multipoint-suture-fixation-technique-for-abdominal-wall-reconstruction-with-component-separation-and-onlay-biological-mesh-placement
#15
Brad Denney, Jorge I de la Torre
Component separation with mesh reinforcement has become the primary modality for complex abdominal wall reconstruction. However, many fundamental questions remain unanswered, such as whether underlay versus overlay mesh placement is superior, and what is the best means of suture fixation technique for mesh placement? This study presents the senior author's technique for onlay biologic mesh placement with multipoint suture fixation in combination with component separation and its subsequent low recurrence rates...
May 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28538070/one-stage-treatment-for-adult-patients-with-crouzonoid-appearance-by-orthognathic-and-face-contouring-surgery
#16
Byung Jun Kim, Hahn Sol Bae, Yoonho Lee
Crouzon syndrome is a rare genetic disorder with autosomal-dominant inheritance that shows a triad of hallmark characteristics: craniosynostosis, exophthalmos, and midface retrusion. General treatment protocol for patients with Crouzon syndrome has already been established, but there is no standard treatment strategy for adult patients with Crouzonoid appearance. The authors present clinical patients of 1-stage orthognathic and face contouring surgery to achieve functional and aesthetic improvement.One-stage surgery was performed in adult patients with Crouzonoid appearance without a history of facial surgery...
May 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28530624/-buccal-mucosa-graft-for-the-treatment-of-long-ureteral-stenosis-bibliographic-review
#17
Gema Del Pozo Jiménez, Ignacio Castillón-Vela, Joaquín Carballido Rodríguez
OBJECTIVE: To perform a literature review on the use of buccal mucosa graft (BMG) in the treatment of extensive ureteral stenosis, according to the criteria of Evidence Based Medicine. METHODS: Pubmed search of published studies with the following keywords: "ureteral stricture treatment", "buccal mucosa graft ureteral treatment" and "buccal mucosa graft ureteroplasty", without time limits, in English and Spanish; 12 articles were identified with a total of 48 cases (46 patients) of BMG use in ureteral repair...
May 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28528016/the-influence-of-humeral-neck-shaft-angle-and-glenoid-lateralization-on-range-of-motion-in-reverse-shoulder-arthroplasty
#18
Birgit S Werner, Jean Chaoui, Gilles Walch
BACKGROUND: Recent developments in reverse shoulder arthroplasty (RSA) have focused on changes in several design-related parameters, including humeral component design, to allow for easier convertibility. Alterations in humeral inclination and offset on shoulder kinematics may have a relevant influence on postoperative outcome. This study used a virtual computer simulation to evaluate the influence of humeral neck shaft angle and glenoid lateralization on range of motion in onlay design RSA...
May 17, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28526657/risk-adjusted-adverse-outcomes-in-complex-abdominal-wall-hernia-repair-with-biologic-mesh-a-case-series-of-140-patients
#19
Rifat Latifi, David Samson, Ansab Haider, Asad Azim, Hajira Iftikhar, Bellal Joseph, Elizabeth Tilley, Jorge Con, Saranda Gashi, Ayman El-Menyar
INTRODUCTION: Biologic mesh is preferred for repair of complex abdominal wall hernias (CAWHs) in patients at high risk of wound infection. We aimed to identify predictors of adverse outcomes after complex abdominal wall hernia repair (CAWR) using biologic mesh with different placement techniques and under different surgical settings. METHODS: A retrospective case series study was conducted on all patients who underwent CAWR with biologic mesh between 2010 and 2015 at a tertiary medical center...
May 16, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28526551/assessment-of-vertical-ridge-augmentation-in-anterior-aesthetic-zone-using-onlay-xenografts-with-titanium-mesh-versus-the-inlay-bone-grafting-technique-a-randomized-clinical-trial
#20
M Mounir, S Mounir, A Abou-Elfetouh, M A Shaker
The aim of this study was to evaluate the final vertical gain at the deficient anterior maxillary alveolar ridges using onlay bone grafts with titanium mesh versus inlay bone grafting. This was a single institutional randomized comparative clinical trial. The study population included 16 patients, with edentulous anterior maxillary alveolar ridges (40 implant sites) who were presented and treated at the Faculty of Oral and Dental Medicine in Cairo University from September 2013 to August 2015. Selected patients were randomly divided into two equal groups...
May 16, 2017: International Journal of Oral and Maxillofacial Surgery
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