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Orthopedic infection control

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https://www.readbyqxmd.com/read/29784040/antimicrobial-resistance-profile-of-staphylococcus-aureus-isolated-from-patients-with-infection-at-tikur-anbessa-specialized-hospital-addis-ababa-ethiopia
#1
Sileshi Tadesse, Haile Alemayehu, Admasu Tenna, Getachew Tadesse, Tefaye Sisay Tessema, Workineh Shibeshi, Tadesse Eguale
BACKGROUND: Staphylococcus aureus is one of the major pathogens of public health importance responsible for various forms of infection. Development of resistance to commonly used antimicrobials limited treatment options against infections due to this pathogen. Antimicrobial resistance profile of Staphylococcus aureus isolated from patients with surgical site infection and ear infection and corresponding nasal swab was investigated in Tikur Anbessa Specialized Hospital (TASH), Addis Ababa, Ethiopia...
May 21, 2018: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29750599/peri-operative-nasal-eradication-therapy-prevents-staphylococcus-aureus-surgical-site-infections-in-aortoiliac-surgery
#2
Jasper C M Langenberg, Jan A J W Kluytmans, Paul G H Mulder, Jannie Romme, Gwan H Ho, Lyckle Van Der Laan
BACKGROUND: Surgical site infections (SSIs) cause considerable morbidity and deaths among patients undergoing vascular surgery. Pre-operative screening and subsequent treatment of nasal Staphylococcus aureus carriers with mupirocin and chlorhexidine reduces the risk of SSIs in cardiothoracic and orthopedic surgery. The aim of this study was to investigate the effect of this screen-and-treat strategy on the development of SSI in patients undergoing aortoiliac surgery. METHODS: A prospective study was performed that enrolled an intervention cohort comprising all patients undergoing aortoiliac surgery from February 2013 to December 2016...
May 11, 2018: Surgical Infections
https://www.readbyqxmd.com/read/29669676/evaluation-of-absorbent-versus-conventional-wound-dressing
#3
Jan Bredow, Katharina Hoffmann, Johannes Oppermann, Martin Hellmich, Peer Eysel, Kourosh Zarghooni
BACKGROUND: Lower-limb endoprosthetic operations and spinal operations are among the more common types of orthopedic procedures. Postoperative woundhealing disturbances and infections can lead to longer periods of hospital stay and recovery as well as to higher morbidity and mortality. METHODS: 209 patients who had been judged to have an indication for a primary knee or hip endoprosthesis or for a primary spinal operation were included in this randomized trial (ClinicalTrials...
March 30, 2018: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/29663925/the-investigation-of-zno-poly-vinylidene-fluoride-nanocomposites-with-improved-mechanical-piezoelectric-and-antimicrobial-properties-for-orthopedic-applications
#4
Yuan Li, Linlin Sun, Thomas J Webster
Studies have shown that piezoelectric materials can be used as bioactively charged surfaces to induce tissue regeneration (like bone reconstruction). β-phase poly(vinylidene fluoride) (PVDF) and zinc oxide (ZnO) are regarded as potential bone tissue engineering materials because of their piezoelectricity and biocompatibility. Additionally, ZnO nanoparticles (NPs) are ideal materials to reduce infection. In this study, PVDF scaffolds doped with ZnO NPs (ZnO/PVDF) were prepared by electrospinning increasing ZnO concentrations and the ratio of the β-phase PVDF resulting in an enhanced the modulus, elongation to failure and load stress...
March 1, 2018: Journal of Biomedical Nanotechnology
https://www.readbyqxmd.com/read/29602957/nanotechnology-the-scope-and-potential-applications-in-orthopedic-surgery
#5
EDITORIAL
Ashok Gavaskar, D Rojas, F Videla
Nanotechnology involves manipulation of matter measuring 1-100 nm in at least one of its dimensions at the molecular level. Engineering and manipulation of matter at the molecular level has several advantages in the field of medicine (nanomedicine) since most of the biological molecules exist and function at a nanoscale. Though promising, questions still remain on how much of this will ultimately translate into achieving better patient care. Concerns of cost-effectiveness and nanotechnology safety still remain unclear...
March 30, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29599835/antibacterial-effects-of-bacteriocins-isolated-from-lactobacillus-rhamnosus-atcc-53103-in-a-rabbit-model-of-knee-implant-infection
#6
Bin Zhou, Defeng Zhang
Infection following orthopedic surgery is a major complication that can have serious implications on patient health. The present study aimed to investigate the antibacterial effects of bacteriocins obtained from Lactobacillus rhamnosus on a rabbit model of Staphylococcus aureus infection following knee replacement surgery. Blood samples were collected 1, 2, 3, 4 and 5 days after bacteriocin injection, and C-reactive protein (CRP) and interleukin (IL)-6 levels were measured using commercial ELISA kits. In addition, biofilm formation was evaluated by fluorescence microscopy...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29544509/local-control-of-polymicrobial-infections-via-a-dual-antibiotic-delivery-system
#7
David J Tennent, Stefanie M Shiels, Jessica A Jennings, Warren O Haggard, Joseph C Wenke
BACKGROUND: Contaminated traumatic open orthopedic wounds are frequently complicated by polymicrobial contamination and infection. In high-risk wounds, the standard of care comprises debridement and irrigation combined with antibiotics which can be applied directly or combined with systemic antibiotics. Recently, bioabsorbable chitosan sponges have been shown to be an effective single-agent delivery device for local antibiotics with and without negative pressure wound therapy (NPWT). Severely contaminated orthopedic wounds, however, are often complicated by polymicrobial infections, necessitating multiple antibiotic agents...
March 15, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29536685/-application-of-damage-control-orthopedics-for-the-treatment-of-severe-multiple-fractures
#8
Teng-Fei Zhu, Wen-Guo Zhao, Han-Lin Zheng, Jia-Xiang Wu
OBJECTIVE: To investigate the application effect of damage control orthopedics for the treatment of severe multiple fractures. METHODS: From January 2014 to December 2016, 23 patients with severe multiple fractures were treated with the damage control orthopedics (DCO), included 14 males and 9 females with an average age of (41.57±8.29) years old ranging from 28 to 60 years old; the NISS averaged(27.70±5.44) points ranging from 18 to 40 points. As the control group, 27 patients with severe multiple fractures were treated by the early total care(ETC) technology from Jan...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29498373/-the-risk-of-perioperative-infections-after-orthopedic-surgery
#9
Paweł Baranowski, Tadeusz Płusa, Alicja Baranowska
Perioperative infections after orthopedic surgery are complications that extend the process of treatment and rehabilitation of patients. The multifactor mechanism of their formation has already been defined, which allows effective control of the threat. In addition to the introduction of ever safer surgical techniques, strict epidemic surveillance and acceptable by the body implanted materials, widely prophylactic perioperative antibiotic therapy is applied. The effects of this action are demonstrated in available clinical analyzes, which indicate a reduction in the scale of the threat...
February 23, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29470405/gentamicin-releasing-mesoporous-zno-structures
#10
Marco Laurenti, Valentina Cauda
Among metal oxides, zinc oxide (ZnO) is one of the most attractive materials thanks to its biocompatible and biodegradable properties along with the existence of various morphologies featuring piezoelectric, semiconducting and photocatalytic activities. All of these structures were successfully prepared and tested for numerous applications, including optoelectronics, sensors and biomedical ones. In the last case, biocompatible ZnO nanomaterials positively influenced cells growth and tissue regeneration as well, promoting wound healing and new bone formation...
February 22, 2018: Materials
https://www.readbyqxmd.com/read/29470228/amiodarone-rifampicin-drug-drug-interaction-management-with-therapeutic-drug-monitoring
#11
Thijs H Oude Munnink, Anna Demmer, Roel H J Slenter, Kris L L Movig
The authors present a case of a 69-year-old man with arrhythmogenic right ventricular cardiomyopathy controlled with amiodarone and an infected orthopedic prosthesis requiring treatment with rifampicin. This combination involves a pharmacokinetic drug-drug interaction leading to subtherapeutic drug concentrations of amiodarone and its active metabolite. The long half-life of amiodarone and its active metabolite in combination with the late onset and offset of cytochrome P4503A (CYP3A4) induction by rifampicin makes this a challenging drug-drug interaction to cope with in clinical practice...
April 2018: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/29457388/-case-control-study-of-therapeutic-effects-between-extreme-lateral-interbody-fusion-and-conventional-posterior-operation-for-the-treatment-of-upper-lumbar-disc-herniation
#12
Can-Hua Xu, Zeng-Hui Wu, Rong-Chun Chen, Hong-Fa Zhong, Qing-Shun Zhang, Ning Liu, Bi Zhang
OBJECTIVE: To evaluate the clinical outcomes between extreme lateral interbody fusion and conventional posterior operation in the treatment of upper lumbar disc herniation. METHODS: Among 60 patients with upper lumbar disc herniation were treated with extreme lateral interbody fusion(XLIF) or conventional posterior operation from June 2010 to December 2014, 30 patients(19 males and 11 females) were treated with XLIF (XLIF group); and the other 30 patients(17 males and 13 females) were treated with conventional posterior operation (conventional group)...
November 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29451945/the-effects-of-platelet-rich-plasma-and-activated-collagen-on-wound-healing-in-primary-total-joint-arthroplasty
#13
David C Evans, Bruce G Evans
Wound healing remains a concern in primary total joint arthroplasty, given the risk of deep infections arising from hematomas, wound separations, and superficial infections. If wound additives can prevent these early complications, their universal application would be cost-effective. This study examined whether 2 wound additives, platelet-rich plasma (PRP) and activated collagen, would improve postoperative wound healing and reduce complications in primary total joint arthroplasty. A prospective, randomized controlled study was conducted using 3 cohorts with 30 patients each (group 1: PRP; group 2: activated collagen; and group 3: control)...
March 1, 2018: Orthopedics
https://www.readbyqxmd.com/read/29451943/dual-diagnosis-and-total-hip-arthroplasty
#14
Mitchell R Klement, Brian T Nickel, Abiram Bala, Colin T Penrose, Cynthia L Green, Samuel S Wellman, Michael P Bolognesi, Thorsten M Seyler
The co-occurrence of a mental illness and a substance abuse disorder (SUD) is common and has been referred to as a "dual diagnosis" (DD). Although studies have independently investigated mental illness alone and SUD alone, few have examined the effects of these entities combined on complications. A search of the Medicare database from 2005 to 2012 identified 2000 DD patients who underwent total hip arthroplasty (THA). They were compared with 86,976 patients with mental illness only and 590,689 controls (no mental illness or SUD)...
February 16, 2018: Orthopedics
https://www.readbyqxmd.com/read/29417772/-case-control-study-on-two-different-surgical-approaches-combined-fixation-with-lumbar-interbody-fusion-for-the-treatment-of-single-segmental-lumbar-vertebra-diseases
#15
Zhong-You Zeng, Wei-Feng Yan, Yong-Xing Song, Ke-Ya Mao, Jian-Fei Ji, Jian-Qiao Zhang, Peng Wu, Fei Pei, Guo-Hao Song, Jian-Fu Han, Wei Yu
OBJECTIVE: To discuss the advantages and disadvantages of two different surgical approaches combined fixation with lumbar interbody fusion in treating single segmental lumbar vertebra diseases. METHODS: The clinical data of 86 patients with single segmental lumbar vertebra diseases treated from June 2011 to June 2013 was retrospectively analyzed. There were 33 males and 53 females, aged from 28 to 76 years old with an average of 53.0 years. Among them, there were 39 cases of lumbar disc degeneration, 22 cases of lumbar disc herniation complicated with spinal canal stenosis, 9 cases of huge lumbar disc herniation and 16 cases of lumbar degenerative spondylolisthesis (Meyerding degree I )...
May 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29398987/shoulder-arthroplasty-for-humeral-head-avascular-necrosis-is-associated-with-increased-postoperative-complications
#16
M Tyrrell Burrus, Jourdan M Cancienne, Jeffrey D Boatright, Scott Yang, Stephen F Brockmeier, Brian C Werner
Background: Humeral head avascular necrosis (AVN) of differing etiologies may lead to shoulder arthroplasty due to subchondral bone collapse and deformity of the articular surface. There have been no large studies evaluating the complications for these patients after they undergo total shoulder arthroplasty (TSA). Questions/Purposes: The first objective of this study is to evaluate the complication rate after TSA in patients with humeral head AVN. The secondary objective is to compare the complication rates among the different etiologies of the AVN...
February 2018: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/29347851/the-era-of-biofunctional-biomaterials-in-orthopedics-what-does-the-future-hold
#17
Mubashar Rehman, Asadullah Madni, Thomas J Webster
Titanium-based materials do not fulfill all of the requirements of orthopedic implants due to a mismatch in mechanical properties with bone which are prone to change during the course of bone growth. Biofunctional biomaterials are a new class of materials that show bioactivity and adaptability at any stage of bone growth. Areas covered: Different biofunctional biomaterials have evolved over time that can enhance calcium phosphate (CaP) precipitation, stimulate osteogenic differentiation, and can control osteoblast gene expression...
March 2018: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/29279933/effect-of-antibiotic-prophylaxis-on-surgical-site-infections-following-removal-of-orthopedic-implants-used-for-treatment-of-foot-ankle-and-lower-leg-fractures-a-randomized-clinical-trial
#18
RANDOMIZED CONTROLLED TRIAL
Manouk Backes, Siem A Dingemans, Marcel G W Dijkgraaf, H Rogier van den Berg, Bart van Dijkman, Jochem M Hoogendoorn, Pieter Joosse, Ewan D Ritchie, W Herbert Roerdink, Judith P M Schots, Nico L Sosef, Ingrid J B Spijkerman, Bas A Twigt, Alexander H van der Veen, Ruben N van Veen, Jefrey Vermeulen, Dagmar I Vos, Jasper Winkelhagen, J Carel Goslings, Tim Schepers
Importance: Following clean (class I, not contaminated) surgical procedures, the rate of surgical site infection (SSI) should be less than approximately 2%. However, an infection rate of 12.2% has been reported following removal of orthopedic implants used for treatment of fractures below the knee. Objective: To evaluate the effect of a single dose of preoperative antibiotic prophylaxis on the incidence of SSIs following removal of orthopedic implants used for treatment of fractures below the knee...
December 26, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29245290/operative-versus-nonoperative-treatment-of-displaced-intra-articular-calcaneal-fractures-a-meta-analysis-of-current-evidence-base
#19
REVIEW
Ning Wei, Peizhi Yuwen, Wei Liu, Yanbin Zhu, Wenli Chang, Chen Feng, Wei Chen
BACKGROUND: The relative efficacy of operative and nonoperative treatments for the displaced intra-articular calcaneal fractures (DIACF) remains uncertain. OBJECT: We conducted a meta-analysis to compare the effectiveness of operative and nonoperative treatments in treating patients with DIACF. METHODS: Databases including Cochrane Library, Medline, Embase, CBM, CNKI, and Google Scholar were searched. After independent study selection by 2 authors, data were extracted and collected independently...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29212390/serratiopeptidase-reduces-the-invasion-of-osteoblasts-by-staphylococcus-aureus
#20
Laura Selan, Rosanna Papa, Angela Ermocida, Andrea Cellini, Evaristo Ettorre, Gianluca Vrenna, Davide Campoccia, Lucio Montanaro, Carla Renata Arciola, Marco Artini
Finding new strategies to counteract periprosthetic infection and implant failure is a main target in orthopedics. Staphylococcus aureus, the leading etiologic agent of orthopedic implant infections, is able to enter and kill osteoblasts, to stimulate pro-inflammatory chemokine secretion, to recruit osteoclasts, and to cause inflammatory osteolysis. Moreover, by entering eukaryotic cells, staphylococci hide from the host immune defenses and shelter from the extracellular antibiotics. Thus, infection persists, inflammation thrives, and a highly destructive osteomyelitis occurs around the implant...
December 2017: International Journal of Immunopathology and Pharmacology
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