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https://www.readbyqxmd.com/read/29334509/comparison-of-stress-and-strain-distribution-around-splinted-and-nonsplinted-6-mm-short-implants-in-posterior-mandible-a-finite-element-analysis-study
#1
Mansour Meimandi, Mohammad Reza Talebi Ardakani, Reza Amid, Amir Mahmoudi Motlagh, Shahrzad Beheshti
PURPOSE: This study was designed to compare the biomechanical performance of splinted and nonsplinted short implants, in the posterior mandible, using finite element analysis. MATERIALS AND METHODS: Three-dimensional models of short implants with 2 different diameters (4 × 6 mm or 5 × 6 mm) were scanned, and CATIA (R21) was used to simulate the model of an edentulous lower jaw. Experimental groups were designed as follows: (1) D4L6-splinted (three 4 × 6-mm splinted implants), (2) D4L6-nonsplinted, (3) D5L6-splinted, and (4) D5L6-nonsplinted...
January 12, 2018: Implant Dentistry
https://www.readbyqxmd.com/read/29334198/enzyme-based-glucose-sensor-from-invasive-to-wearable-device
#2
REVIEW
Hyunjae Lee, Yongseok Joseph Hong, Seungmin Baik, Taeghwan Hyeon, Dae-Hyeong Kim
Blood glucose concentration is a key indicator of patients' health, particularly for symptoms associated with diabetes mellitus. Because of the large number of diabetic patients, many approaches for glucose measurement have been studied to enable continuous and accurate glucose level monitoring. Among them, electrochemical analysis is prominent because it is simple and quantitative. This technology has been incorporated into commercialized and research-level devices from simple test strips to wearable devices and implantable systems...
January 15, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29332068/the-role-of-preoperative-steroids-for-hearing-preservation-cochlear-implantation-results-of-a-randomized-controlled-trial
#3
Jafri Kuthubutheen, Samidha Joglekar, Leah Smith, Lendra Friesen, Kari Smilsky, Tara Millman, Amy Ng, David Shipp, Harvey Coates, Christoph Arnoldner, Julian Nedzelski, Joseph Chen, Vincent Lin
OBJECTIVES: To determine whether preoperative steroids can improve hearing outcomes in cochlear implantation (CI). METHODS: This is a randomized controlled trial involving 30 postlingual deaf CI patients. Subjects had preoperative thresholds of better than or equal to 80 dB at 125 and 250 Hz, and better than or equal to 90 dB at 500 and 1,000 Hz. The subjects were randomized to a control group, an oral steroid group (receiving 1 mg/kg/day of prednisolone for 6 days prior to surgery), or a transtympanic steroid group (receiving a single dose of 0...
January 13, 2018: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/29331010/implants-for-extracapsular-neck-of-femur-fracture-dynamic-hip-screw-versus-intramedullary-nailing
#4
Faisal Farooq Butt, Adnan Shabbair Hussain, Ahmed Mushtaq Khan, Maria Sultan
Neck of femur fractures are the most prevalent type of injury in elderly trauma patients. Both intra and extra capsular type of fractures are equally distributed in the given population. Traditionally, Extra capsular fractures are fixed with Dynamic Hip screw or Intra medullary nailing based on the type of fracture. NICE (National Institute of Clinical Excellence) recommends fixing 31-A1 and 31-A2 fractures with DHS (Dynamic Hip Screw) whereas AO recommends fixing 31-A1 with DHS and 31-A2.1 subtype with DHS and 31-A2...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29330835/international-guidelines-for-groin-hernia-management
#5
(no author information available yet)
INTRODUCTION: Worldwide, more than 20 million patients undergo groin hernia repair annually. The many different approaches, treatment indications and a significant array of techniques for groin hernia repair warrant guidelines to standardize care, minimize complications, and improve results. The main goal of these guidelines is to improve patient outcomes, specifically to decrease recurrence rates and reduce chronic pain, the most frequent problems following groin hernia repair. They have been endorsed by all five continental hernia societies, the International Endo Hernia Society and the European Association for Endoscopic Surgery...
January 12, 2018: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/29326773/clinical-outcomes-of-patients-undergoing-rotational-atherectomy-followed-by-drug-eluting-stent-implantation-a-single-center-real-world-experience
#6
Lucky R Cuenza, Ada Cherryl Jayme, James Ho Khe Sui
Background: Rotational atherectomy (RA) is used to improve procedural success of percutaneous catheter interventions (PCIs) of complex and heavily calcified coronary lesions. We report the clinical experience and outcomes in our institution with the use of RA, followed by drug-eluting stent implantation. Materials and Methods: Data of 81 patients treated with PCI and adjunctive RA were analyzed. Clinical follow-up for the occurrence of major adverse events (MAEs) was obtained in all patients and correlated with significant variables using multivariate Cox proportional hazards analysis...
October 2017: Heart Views: the Official Journal of the Gulf Heart Association
https://www.readbyqxmd.com/read/29325837/outcomes-of-total-knee-arthroplasty-in-degenerative-osteoarthritic-knee-with-genu-recurvatum
#7
Seung-Suk Seo, Chang-Wan Kim, Chang-Rack Lee, Jin-Hyuk Seo, Do-Hun Kim, Ok-Gul Kim
BACKGROUND: This study aimed to assess the incidence of genu recurvatum without neuromuscular disorders in knees that underwent navigation-assisted total knee arthroplasty (TKA), to evaluate short-term radiologic and clinical results of navigation-assisted TKA in genu recurvatum, and to evaluate differences in results according to the degree of pre-operative hyperextension and type of implant and insert. METHODS: This study retrospectively reviewed 510 knees that underwent navigation-assisted TKA from January 2005 to December 2011...
January 9, 2018: Knee
https://www.readbyqxmd.com/read/29325832/the-pics-technique-a-novel-approach-for-residual-curvature-correction-during-penile-prosthesis-implantation-in-patients-with-severe-peyronie-s-disease-using-the-collagen-fleece-tachosil
#8
Georgios Hatzichristodoulou
BACKGROUND: Correction of residual curvature during inflatable penile prosthesis (IPP) implantation in patients with Peyronie's disease (PD) by plaque incision and grafting is a common approach. AIM: To present a novel technique for residual curvature correction during IPP implantation using collagen fleece (TachoSil, Baxter Healthcare Corp, Deerfield, IL, USA). METHODS: After the IPP (Titan Touch, Coloplast, Minneapolis, MN, USA) is placed, the implant is inflated maximally...
January 8, 2018: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29325184/-distal-humerus-fracture-in-the-elderly
#9
Johannes E Plath, Stefan Förch, Thomas Haufe, Edgar Johann Mayr
Distal humerus fractures show increasing incidence with age. Due to preexisting osteoporosis, the surgeon is regularly confronted with complex comminuted intraarticular fractures. The maintenance of autonomy in daily life and avoidance of permanent care dependency is a dogma in the care of geriatric patients. Accordingly, a stable post-operative situation that allows early functional post-operative treatment is mandatory, especially in the elderly patient. Open reduction and stable internal fixation using double plate osteosynthesis are the current osteosynthetic standard of treatment...
January 11, 2018: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29323393/nano-beam-and-nano-target-effects-in-ion-radiation
#10
Yang Yang, Yong Gang Li, Michael P Short, Chung-Soo Kim, Karl K Berggren, Ju Li
Full three dimensional (3D) simulations of ion implantation are necessary in a wide range of nanoscience and nanotechnology applications to capture the increasing effect of ion leakage out of surfaces. Using a recently developed 3D Monte Carlo simulation code IM3D, we first quantify the relative error of the 1D approach in three applications of nano-scale ion implantation: (1) nano-beam for nitrogen-vacancy (NV) center creation, (2) implantation of nanowires to fabricate p-n junctions, and (3) irradiation of nano-pillars for small-scale mechanical testing of irradiated materials...
January 11, 2018: Nanoscale
https://www.readbyqxmd.com/read/29322904/modular-bicompartmental-knee-arthroplasty-indications-technique-prosthetic-design-and-results
#11
R Kanna
The shifting demographics of patients with localized knee arthritis, including younger, more active patients, is a chief motivation for mounting interest in tissue preserving surgical substitutes for total knee arthroplasty (TKA). Unlinked, modular bi-compartmental knee arthroplasty (MBKA) is an emerging knee-resurfacing approach that provides a conservative alternative to TKA. Arthritis involving both patellofemoral and either medial or lateral tibiofemoral compartments, with no significant deformity or bone deficiency, preserved motion, and intact cruciate ligaments, can be effectively managed with MBKA...
March 2017: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29322896/influence-of-varus-valgus-positioning-of-the-nanos%C3%A2-and-metha%C3%A2-short-stemmed-prostheses-on-stress-shielding-of-metaphyseal-bone
#12
V Brinkmann, F Radetzki, N Gutteck, S Delank, A Zeh
The aim of this study was to analyze bone remodeling around the Nanos® (Smith & Nephew) and Metha® (Aesculap AG) implants as a function of varus/valgus stem positioning. In 75 patients with diagnosed coxarthrosis, either Nanos® (n= 51) or Metha® (n= 24) prostheses were implanted. Digital assessment of plain radiographs immediately, 97 days, and 381 days after THA showed no clinically-relevant migration, angulation, or change in offset and center of rotation. The DEXA scans showed significant BMD changes in Gruen zones 1 (-12...
March 2017: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29315350/gluteal-muscle-damage-leads-to-higher-in-vivo-hip-joint-loads-3-months-after-total-hip-arthroplasty
#13
Philipp Damm, Jip Zonneveld, Sophie Brackertz, Florian Streitparth, Tobias Winkler
BACKGROUND: Total hip arthroplasty (THA) is in most cases improving patients´ life quality immediately after surgery. However, a closer look at these patients, especially with modern gait analysis methods, reveals also negative consequences due to the surgical approach related injury to the pelvic muscles. We hypothesized that this damage will have a negative impact on hip joint contact forces during activities of daily living (ADL). METHODS: 10 patients undergoing THA received an instrumented hip joint implant enabling real time in vivo measurements of hip joint loads using a direct lateral approach...
2018: PloS One
https://www.readbyqxmd.com/read/29311518/impact-of-frailty-markers-for-unplanned-hospital-readmission-following-transcatheter-aortic-valve-implantation
#14
Mike Saji, Ryosuke Higuchi, Tetsuya Tobaru, Nobuo Iguchi, Shuichiro Takanashi, Morimasa Takayama, Mitsuaki Isobe
BACKGROUND: Various frailty markers have been developed to guide better patient selection for transcatheter aortic valve implantation (TAVI). This study aimed to investigate the frequency and specific causes of unplanned hospital readmission after TAVI, and to investigate which frailty markers better predicted outcomes.Methods and Results:We retrospectively reviewed 155 patients for whom we calculated their Short Physical-Performance Battery (SPPB), Placement of AoRTic TraNscathetER Valve (PARTNER) frailty scale, frailty index, clinical frailty scale, modified Fried scale, and gait speed...
December 29, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29310880/the-hemi-engaging-fixed-dental-implant-prosthesis-a-technique-for-improved-stability-and-handling
#15
Todd R Schoenbaum, Richard G Stevenson, Eric Balinghasay
Clinicians commonly contend that the screw-retained, implant-supported fixed dental prosthesis (FDP) should be fabricated with all nonengaging abutments to allow for the inherent nonparallelism of the implants and the inability of the abutment connections to draw together during insertion and removal. The problem with a fully nonengaging FDP is difficulty in handling and more strain on the abutment screws, ultimately leading to increased rates of breakage and loosening. The hemi-engaging FDP design regains much of the advantage afforded by the internal connection and improves prosthetic handing both clinically and in the laboratory...
January 5, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29310591/uncontrolled-donation-after-circulatory-death-comparison-of-two-kidney-preservation-protocols-on-graft-outcomes
#16
Claire Delsuc, Alexandre Faure, Julien Berthiller, Didier Dorez, Xavier Matillon, Vannary Meas-Yedid, Bernard Floccard, Guillaume Marcotte, Vanessa Labeye, Maud Rabeyrin, Ricardo Codas, Cécile Chauvet, Philip Robinson, Emmanuel Morelon, Lionel Badet, William Hanf, Thomas Rimmelé
BACKGROUND: Kidney transplantation following uncontrolled donation after circulatory death (uDCD) presents a high risk of delayed graft function due to prolonged warm ischemia time. In order to minimise the effects of ischemia/reperfusion injury during warm ischemia, normothermic recirculation recently replaced in situ perfusion prior to implantation in several institutions. The aim of this study was to compare these preservation methods on kidney graft outcomes. METHODS: The primary endpoint was the one-year measured graft filtration rate (mGFR)...
January 8, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29305041/arthroscopic-treatment-of-osteochondral-lesions-of-the-talus-using-juvenile-articular-cartilage-allograft-and-autologous-bone-marrow-aspirate-concentration
#17
Bridget A DeSandis, Amgad M Haleem, Carolyn M Sofka, Martin J O'Malley, Mark C Drakos
Juvenile allogenic chondrocyte implantation (JACI; DeNovo NT Natural Tissue Graft®; Zimmer, Warsaw, IN) with autologous bone marrow aspirate concentrate (BMAC) is a relatively new all-arthroscopic procedure for treating critical-size osteochondral lesions (OCLs) of the talus. Few studies have investigated the clinical and radiographic outcomes of this procedure. We collected the clinical and radiographic outcomes of patients who had undergone JACI-BMAC for talar OCLs to assess treatment efficacy and cartilage repair tissue quality using magnetic resonance imaging (MRI)...
January 2, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29303922/bearing-surfaces-for-total-hip-arthroplasty
#18
Paul F Lachiewicz, Lindsay T Kleeman, Thorsten Seyler
Metal-on-highly cross-linked polyethylene is considered the preferred bearing surface for conventional total hip arthroplasty because of its safety profile and excellent results in the first 10 to 15 years of use. However, with younger patient age, activity expectations increase, and the life expectancy of patients with total hip arthroplasty also has increased, so interest remains in other bearing couples. These other options include the use of various ceramic composites for the femoral head on highly cross-linked polyethylene, the so-called second-generation antioxidant polyethylenes, and ceramic acetabular liners...
January 15, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29303816/short-implants-versus-standard-implants-midterm-outcomes-of-a-clinical-study
#19
M Emre Benlidayi, Yurdanur Ucar, Ufuk Tatli, Orhun Ekren, Burcu Evlice, Halil Ibrahim Kisa, Uygar Baksi
INTRODUCTION: The aim of this study was to evaluate the midterm survival rate, marginal bone resorption (MBR), and stability of short implants and to compare the results with standard length implants. MATERIALS AND METHODS: A total of 38 patients were included. In total, 147 implants (Nucleoss Implants, Izmir, Turkey) were placed (86 short implants and 61 standard implants). Cement-retained metal-ceramic prostheses were fabricated. MBR was evaluated on periapical radiographs taken at implant placement, at the time of crown insertion and annually thereafter...
January 4, 2018: Implant Dentistry
https://www.readbyqxmd.com/read/29302735/a-new-human-derived-acellular-dermal-matrix-for-breast-reconstruction-available-for-the-european-market-preliminary-results
#20
Secondo Folli, Annalisa Curcio, Davide Melandri, Elena Bondioli, Nicola Rocco, Giuseppe Catanuto, Fabio Falcini, Valeria Purpura, Matteo Mingozzi, Federico Buggi, Francesco Marongiu
INTRODUCTION: The introduction of acellular dermal matrices (ADMs) contributed to the growing diffusion of direct-to-implant breast reconstruction (DTI-BR) following mastectomy for breast cancer. According to specific legislations, European specialists could not benefit from the use of human-derived ADMs, even though most evidence in the literature are available for this kind of device, showed optimal outcomes in breast reconstruction. The Skin Bank of the Bufalini Hospital (Cesena, Italy) obtained in 2009 the approval for the production and distribution of a new human cadaver-donor-derived ADM (named with the Italian acronym, MODA, for matrice omologa dermica acellulata) from the Italian National Transplant Center and National Health Institute...
January 4, 2018: Aesthetic Plastic Surgery
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