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Nathan J Turnbull, Keith R Berend, Vincent Y Ng, Joanne B Adams, David A Crawford, Adolph V Lombardi
INTRODUCTION: The gender-specific total knee arthroplasty (TKA) debate focuses on differences in distal femoral mediolateral to anteroposterior aspect ratio between males and females. However, randomized studies have been unable to demonstrate significant differences in outcomes utilizing gender-specific implants. No studies have examined the effect of intermediate femoral component sizes on outcome. We compared outcomes before and after intermediate sizing availability. MATERIALS AND METHODS: We identified 331 patients (413 knees) who underwent primary TKA between 2003 and 2004 with a single complete knee system...
October 26, 2016: Surgical Technology International
Clayton W Nuelle, Jeffrey L Milles, Ferris M Pfeiffer, James P Stannard, Patrick A Smith, Mauricio Kfuri, James L Cook
No surgical technique recreates native posterior cruciate ligament (PCL) biomechanics. We compared the biomechanics of five different PCL reconstruction techniques versus the native PCL. Cadaveric knees (n = 20) were randomly assigned to one of five reconstruction techniques: Single bundle all-inside arthroscopic inlay, single bundle all-inside suspensory fixation, single bundle arthroscopic-assisted open onlay (SB-ONL), double bundle arthroscopic-assisted open inlay (DB-INL), and double bundle all-inside suspensory fixation (DB-SUSP)...
October 25, 2016: Journal of Knee Surgery
E Castaldi, G M Cicchini, L Cinelli, L Biagi, S Rizzo, M C Morrone
Retinal prosthesis technologies require that the visual system downstream of the retinal circuitry be capable of transmitting and elaborating visual signals. We studied the capability of plastic remodeling in late blind subjects implanted with the Argus II Retinal Prosthesis with psychophysics and functional MRI (fMRI). After surgery, six out of seven retinitis pigmentosa (RP) blind subjects were able to detect high-contrast stimuli using the prosthetic implant. However, direction discrimination to contrast modulated stimuli remained at chance level in all of them...
October 2016: PLoS Biology
Maiolino Oliveira, Darceny Zanetta-Barbosa, Livia Bonjardim Lima, Luis Raposo, Luiz Gonà Alves, Paulo Simamoto-Jã Nior
The informations for conyributors of the journal says that clinical case letters, such as our article, do not have an abstract.
October 25, 2016: Journal of Oral Implantology
Lu Han, Xiong Lu, Menghao Wang, Donglin Gan, Weili Deng, Kefeng Wang, Liming Fang, Kezhi Liu, Chun Wai Chan, Youhong Tang, Lu-Tao Weng, Huipin Yuan
A graphene oxide conductive hydrogel is reported that simultaneously possesses high toughness, self-healability, and self-adhesiveness. Inspired by the adhesion behaviors of mussels, our conductive hydrogel shows self-adhesiveness on various surfaces and soft tissues. The hydrogel can be used as self-adhesive bioelectronics, such as electrical stimulators to regulate cell activity and implantable electrodes for recording in vivo signals.
October 25, 2016: Small
Magdalena Zaborowska, Jonatan Tillander, Rickard Brånemark, Lars Hagberg, Peter Thomsen, Margarita Trobos
Staphylococci and enterococci account for most deep infections associated with bone-anchored percutaneous implants for amputation treatment. Implant-associated infections are difficult to treat; therefore, it is important to investigate if these infections have a biofilm origin and to determine the biofilm antimicrobial susceptibility to improve treatment strategies. The aims were: (i) to test a novel combination of the Calgary biofilm device and a custom-made susceptibility MIC plate (Sensititre(®) ), (ii) to determine the biofilm formation and antimicrobial resistance in clinical isolates causing implant-associated osteomyelitis, and (iii) to describe the associated clinical outcome...
October 25, 2016: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Debbie C Yen, Mara H Watson, Lindsey D Burgess, Maragatha Kuchibhatla, Chetan B Patel, Kristen B Campbell, Alyssa K Vora
STUDY OBJECTIVE: To evaluate the impact of continuous-flow left ventricular assist device (LVAD) implantation on glycemic control in patients with type 2 diabetes mellitus and advanced chronic systolic heart failure. DESIGN: Retrospective medical record review. SETTING: Large, academic, tertiary and quaternary care hospital. PATIENTS: Eighty-three adults with type 2 diabetes mellitus and advanced chronic systolic heart failure who underwent implantation of a continuous-flow LVAD between July 1, 2008, and June 30, 2013...
October 25, 2016: Pharmacotherapy
Carl Neuerburg, Theresa Loer, Lena Mittlmeier, Christina Polan, Zsuzsanna Farkas, Lesca Miriam Holdt, Sandra Utzschneider, Jens Schwiesau, Thomas M Grupp, Wolfgang Böcker, Attila Aszodi, Christian Wedemeyer, Christian Kammerlander
Aseptic loosening mediated by wear particle-induced osteolysis (PIO) remains the major cause of implant loosening in endoprosthetic surgery. The development of new vitamin E (α-tocopherol)-blended ultra-high molecular weight polyethylene (VE-UHMWPE) with increased oxidation resistance and improved mechanical properties has raised hopes. Furthermore, regenerative approaches may be opened, as vitamin E supplementation has shown neuroprotective characteristics mediated via calcitonin gene-related peptide (CGRP), which is known to affect bone remodeling in PIO...
October 18, 2016: International Journal of Molecular Medicine
Kyung Chul Oh, Woojin Hwang, Young Bum Park, Jae Hoon Lee, Hong Seok Moon, Jee Hwan Kim
OBJECTIVE: To determine the effects of alendronate on bone remodeling around osseointegrated implants in rats. MATERIALS AND METHODS: The maxillary first molars were extracted from 36 male Sprague-Dawley rats, and replaced with customized implants. They were then administered twice-weekly subcutaneous injections of either alendronate (alendronate group) or saline (control group) after allowing a 4-week period for osseointegration. They were killed at 4, 8, or 12 weeks after the commencement of the injection protocol, and the implant sites were evaluated comprehensively by microcomputed tomographic, histologic, and biochemical assessments...
October 20, 2016: Implant Dentistry
Renzo Guarnieri, Luca Savio, Alessandro Bermonds des Ambrois, Stefano Ippoliti, Francesco Zuffetti, Luigi Vito Stefanelli, Stefano Di Carlo, Giorgio Pompa
PURPOSE: The aim of this study was to evaluate the possible factors that influenced the periimplant soft tissue changes around single implants-abutments with laser-microtextured surface (LMS) in the esthetic zone. MATERIALS AND METHODS: Thirty-nine units, formed by implant-abutment with LMS were studied. Variables possibly associated with the periimplant soft tissue changes were obtained from clinical measurements (plaque [present/absent], periimplant biotype [thin/thick], and probing depth); intrasurgical measurements (vertical height in millimeters of the keratinized gingiva in the vestibular part of the implant site vestibular keratinized gingiva [VKG], implant vestibular crestal exposition, vestibular crestal level, and vestibular bone width); cast models (implant position [buccal/palatal], implant abutments angle); periapical radiographs (distance from the contact point to the interproximal bone crest of the adjacent tooth [CP-BC], distance from the contact point to the implant platform [CP-P], distance from the contact point to the first bone to implant contact [CP-IB]); and digital clinical photographs...
October 20, 2016: Implant Dentistry
S Mittal, A Adamusiak, C Horsfield, I Loukopoulos, N Karydis, N Kessaris, M Drage, J Olsburgh, Cje Watson, C J Callaghan
BACKGROUND: A significant proportion of procured deceased donor kidneys are subsequently discarded. The UK Kidney Fast-Track Scheme (KFTS) was introduced in 2012, enabling kidneys at risk of discard to be simultaneously offered to participating centres. We undertook an analysis of discarded kidneys to determine if unnecessary organ discard was still occurring since the KFTS was introduced. METHODS: Between April and June 2015, senior surgeons independently inspected 31 consecutive discarded kidneys from throughout the UK...
October 25, 2016: Transplantation
Da Hae Lee, Bart Keymeulen, Robert Hilbrands, Zhidong Ling, Ursule Van de Velde, Daniel Jacobs-Tulleneers-Thevissen, Geert Maleux, Bruno Lapauw, Laurent Crenier, Christophe De Block, Chantal Mathieu, Daniel Pipeleers, Pieter Gillard
BACKGROUND: Induction therapy with a T cell depleting agent followed by mycophenolate mofetil (MMF) and tacrolimus (Tac) is presently the most frequently used immune suppression (IS) regimen in islet transplantation. This study assesses its safety and tolerability in nonuremic type 1 diabetic recipients. METHODS: Fifty-one patients (ages between 29-63 years) with high glycemic variability and problematic hypoglycemia received intraportal islet grafts under anti-thymocyte globulin (ATG)-MMF-Tac protocol...
October 25, 2016: Transplantation
Henrik Smeds, Jeremy Wales, Filip Asp, Ulrika Löfkvist, Babak Falahat, Britt-Marie Anderlid, Lena Anmyr, Eva Karltorp
OBJECTIVE: To evaluate if cochlear implantation is safe and constitutes an option for hearing rehabilitation of children with x-linked inner ear malformation. STUDY DESIGN: Retrospective patient review in combination with a multidisciplinary follow-up. SETTING: Tertiary referral hospital and cochlear implant program. PATIENTS: Ten children with severe-profound mixed hearing loss and radiological findings consistent with Incomplete Partition type 3 cochlear malformation received cochlear implants during the years 2007 to 2015...
October 21, 2016: Otology & Neurotology
Thibaud Dumon, Inge Wegner, Neil Sperling, Wilko Grolman
OBJECTIVE: To compare the minimal skin punch incision without additional skin incision or soft tissue reduction with the epidermal flap technique and soft tissue reduction, for the implantation of percutaneous bone-anchored hearing devices. STUDY DESIGN: Prospective cohort study. SETTING: Tertiary care referral center. SUBJECTS AND METHODS: Two hundred seventeen patients underwent 220 implantations. Sixty five cases underwent implantation by means of a skin punch resection without soft tissue reduction (punch group) and 155 cases underwent epidermal flap and soft tissue reduction (dermatome group)...
October 21, 2016: Otology & Neurotology
Suzanne J O'Gara, Helen E Cullington, Mary L Grasmeder, Maria Adamou, Emily S Matthews
OBJECTIVES: To identify factors preimplantation associated with postimplantation speech perception improvement in the adult congenitally deaf population. DESIGN: Forty-four adult cochlear implant (CI) patients who had a severe to profound hearing loss from birth were identified from this centre's database. Eight preimplantation factors, speech intelligibility, preimplantation hearing levels, communication mode, preimplantation speech perception scores, progression of hearing loss, age at implantation, hearing aid use preimplantation, and gender, were recorded during the CI assessment process...
November 2016: Ear and Hearing
L Balazova, K Krskova, M Suski, V Sisovsky, N Hlavacova, R Olszanecki, D Jezova, S Zorad
Increasing evidence indicates a role of oxytocin in controlling energy metabolism. The aim of his study was to investigate oxytocin effects on obese phenotype in leptin-resistant Zucker fatty rats, focusing on glucose and lipid metabolism. Zucker fatty rats and their lean controls were treated with oxytocin (3.6 μg/100g body weight/day) by osmotic minipumps implanted subcutaneously for 2 weeks. Two-hours intraperitoneal glucose tolerance test was performed in fasting rats. Oxytocin decreased food intake in both phenotypes while body weight gain reduced only in obese animals...
August 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Yu Karpov, N Logunova, D Tomilova, V Buza, Yu Khomitskaya
OBJECTIVE: The OPTIMA II study sought to evaluate rates of major adverse cardiac and cerebrovascular events (MACCE) during the long-term follow-up of chronic statin users who underwent percutaneous coronary intervention (PCI) with implantation of a drug-eluting stent (DES). RESEARCH DESIGN AND METHODS: OPTIMA II was a non-interventional, observational study conducted at a single center in the Russian Federation. Included patients were aged ≥18 years with stable angina who had received long-term (≥1 month) statin therapy prior to elective PCI with DES implantation and who had participated in the original OPTIMA study...
October 25, 2016: Current Medical Research and Opinion
Wen Zhang, Fujian Zhao, Deqiu Huang, Xiaoling Fu, Xian Li, Xiaofeng Chen
Host immune response induced by foreign bone biomaterials plays an important role in determining their fate after implantation. Hence, it is well worth designing advanced bone substitute materials with beneficial immunomodulatory properties to modulate the host-material interactions. Bioactive glasses (BG), with excellent osteoconductivity and osteoinductivity, are regarded as important biomaterials in the field of bone regeneration. In order to explore a novel BG-based osteoimmunomodulatory implant with the capacity of potentially enhancing bone regeneration, it is a possible way to regulate the local immune microenvironment through manipulating macrophage polarization...
October 25, 2016: ACS Applied Materials & Interfaces
Nagy A Mekhail, Emad Estemalik, Gerges Azer, Kristina Davis, Stuart J Tepper
BACKGROUND: A recent multicenter study presented 52-week safety and efficacy results from an open-label extension of a randomized, sham-controlled trial for patients with chronic migraine (CM) undergoing peripheral nerve stimulation of the occipital nerves. We present the data from a single center of 20 patients enrolled at the Cleveland Clinic's Pain Management Department. METHODS: In this single center, 20 patients were implanted with a neurostimulation system, randomized to an active or control group for 12 weeks, and received open-label treatment for an additional 40 weeks...
October 25, 2016: Pain Practice: the Official Journal of World Institute of Pain
Lorenzo Conte, Iacopo Fabiani, Nicola R Pugliese, Cristina Giannini, Salvatore La Carruba, Marco Angelillis, Paolo Spontoni, Marco De Carlo, Anna Sonia Petronio, Vitantonio Di Bello
OBJECTIVES: Assessment of the prognostic role of left ventricular stiffness (LVS) in patients with aortic stenosis (AS) undergoing transcatheter aortic valve implantation (TAVI). METHODS: We performed a complete two-dimensional transthoracic echocardiographic study before and after TAVI in patients with severe AS at high surgical risk. In order to assess LVS, we measured LV end-diastolic pressure (EDP) invasively during TAVI and LV end-diastolic volume (EDV) by means of echocardiography...
October 25, 2016: Echocardiography
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