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Arthroplasty infection staphylococcus.aureus

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https://www.readbyqxmd.com/read/27890730/cathodic-voltage-controlled-electrical-stimulation-of-titanium-for-prevention-of-methicillin-resistant-staphylococcus-aureus-and-acinetobacter-baumannii-biofilm-infections
#1
Mary Canty, Nicole Luke-Marshall, Anthony Campagnari, Mark Ehrensberger
: Antibiotic resistance of bacterial biofilms limits available treatment methods for implant-associated orthopaedic infections. This study evaluated the effects of applying cathodic voltage-controlled electrical stimulations (CVCES) of -1.5V and -1.8V (vs. Ag/AgCl) to coupons of commercially pure titanium (cpTi) incubated in cultures of methicillin-resistant Staphylococcus aureus (MRSA) and Acinetobacter baumannii (A. baumannii) as a method of preventing bacterial attachment. Stimulations were applied for 2, 4, and 8 hours and coupon-associated and planktonic colony-forming units (CFU) were enumerated following stimulation...
November 24, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27876465/is-there-still-a-role-for-irrigation-and-debridement-with-liner-exchange-in-acute-periprosthetic-total-knee-infection
#2
Andrés F Duque, Zachary D Post, Rex W Lutz, Fabio R Orozco, Sergio H Pulido, Alvin C Ong
BACKGROUND: Periprosthetic joint infection (PJI) is an important cause of failure in total knee arthroplasty. Irrigation and debridement including liner exchange (I&D/L) success rates have varied for acute PJI. The purpose of this study is to present results of a specific protocol for I&D/L with retention of total knee arthroplasty components. METHODS: Sixty-seven consecutive I&D/L patients were retrospectively evaluated. Inclusion criteria for I&D/L were as follows: fewer than 3 weeks of symptoms, no immunologic compromise, intact soft tissue sleeve, and well-fixed components...
November 1, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27844159/clinical-and-epidemiological-differences-between-implant-associated-and-implant-free-orthopaedic-infections
#3
Céline Cuérel, Sophie Abrassart, Julien Billières, Diego Andrey, Domizio Suva, Victor Dubois-Ferrière, Ilker Uçkay
PURPOSE: Although there have been many publications regarding the risk factors for implant-associated orthopaedic infections, none have investigated how clinical presentations and epidemiology may differ between infections with and without osteosynthetic material. METHODS: We pooled clinical data from several databases of adult patients with orthopaedic infections hospitalized at Geneva University Hospitals from January 2004 to December 2014. RESULTS: Among 2740 episodes of orthopaedic infections, 76% were implant-free osteoarticular or soft tissue infections...
November 14, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27834161/periprosthetic-infection-following-primary-hip-and-knee-arthroplasty-the-impact-of-limiting-the-postoperative-surveillance-period
#4
Virginia R Roth, Robyn Mitchell, Julie Vachon, Stéphanie Alexandre, Kanchana Amaratunga, Stephanie Smith, Mary Vearncombe, Ian Davis, Dominik Mertz, Elizabeth Henderson, Michael John, Lynn Johnston, Camille Lemieux, Linda Pelude, Denise Gravel
BACKGROUND Hip and knee arthroplasty infections are associated with considerable healthcare costs. The merits of reducing the postoperative surveillance period from 1 year to 90 days have been debated. OBJECTIVES To report the first pan-Canadian hip and knee periprosthetic joint infection (PJI) rates and to describe the implications of a shorter (90-day) postoperative surveillance period. METHODS Prospective surveillance for infection following hip and knee arthroplasty was conducted by hospitals participating in the Canadian Nosocomial Infection Surveillance Program (CNISP) using standard surveillance definitions...
November 11, 2016: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/27832042/prior-staphylococcus-aureus-nasal-colonization-a-risk-factor-for-surgical-site-infections-following-decolonization
#5
Nicholas Ramos, Anna Stachel, Michael Phillips, Jonathan Vigdorchik, James Slover, Joseph A Bosco
INTRODUCTION: Staphylococcus aureus (S aureus) decolonization regimens are being used to mitigate the risk of surgical site infection (SSI). However, their efficacy is controversial, with mixed results reported in the literature. METHODS: Before undergoing primary total knee arthroplasty (TKA), total hip arthroplasty (THA), or spinal fusion, 13,828 consecutive patients were screened for nasal S aureus and underwent a preoperative decolonization regimen. Infection rates of colonized and noncolonized patients were compared using unadjusted logistic regression...
December 2016: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/27823845/decreased-hospital-costs-and-surgical-site-infection-incidence-with-a-universal-decolonization-protocol-in-primary-total-joint-arthroplasty
#6
Jeffrey B Stambough, Denis Nam, David K Warren, James A Keeney, John C Clohisy, Robert L Barrack, Ryan M Nunley
BACKGROUND: Staphylococcus aureus colonization has been identified as a key modifiable risk factor in the reduction of surgical site infections (SSI) related to elective total joint arthroplasty (TJA). We investigated the incidence of SSIs and cost-effectiveness of a universal decolonization protocol without screening consisting of nasal mupirocin and chlorhexidine before elective TJA compared to a program in which all subjects were screened for S aureus and selectively treated if positive...
October 8, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27814559/adhesion-force-of-staphylococcus-aureus-on-various-biomaterial-surfaces
#7
Fahad Alam, Kantesh Balani
Staphylococcus comprises of more than half of all pathogens in orthopedic implant infections and they can cause major bone infection which can result in destruction of joint and bone. In the current study, adhesion force of bacteria on the surface of various biomaterial surfaces is measured using atomic force microscope (AFM). Staphylococcus aureus was immobilized on an AFM tipless cantilever as a force probe to measure the adhesion force between bacteria and biomaterials (viz. ultra-high molecular weight poly ethylene (UHMWPE), stainless steel (SS), Ti-6Al-4V alloy, hydroxyapatite (HA))...
October 20, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27749085/polymerase-chain-reaction-electrospray-time-of-flight-mass-spectrometry-versus-culture-for-bacterial-detection-in-septic-arthritis-and-osteoarthritis
#8
Michael P Palmer, Rachael Melton-Kreft, Laura Nistico, N Louisa Hiller, Leon H J Kim, Gregory T Altman, Daniel T Altman, Nicholas G Sotereanos, Fen Z Hu, Patrick J De Meo, Garth D Ehrlich
BACKGROUND: Preliminary studies have identified known bacterial pathogens in the knees of patients with osteoarthritis (OA) before arthroplasty. AIMS: The current study was designed to determine the incidence and types of bacteria present in the synovial fluid of native knee joints from adult patients with diagnoses of septic arthritis and OA. PATIENTS AND METHODS: Patients were enrolled between October 2010 and January 2013. Synovial fluid samples from the affected knee were collected and evaluated with both traditional microbial culture and polymerase chain reaction-electrospray ionization-time-of-flight mass spectrometry (molecular diagnostics [MDx]) to prospectively characterize the microbial content...
October 17, 2016: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/27744001/epidemiology-of-patients-with-mssa-versus-mrsa-infections-of-orthopedic-implants-retrospective-study-of-115-patients
#9
A Deny, C Loiez, V Deken, S Putman, A Duhamel, J Girard, G Pasquier, C Chantelot, E Senneville, H Migaud
: Factors that predict the occurrence of a surgical site infection due to methicillin-resistant Staphylococcus aureus (MRSA) are not well known; however this information could be used to modify the recommended antimicrobial prophylaxis. We carried out a retrospective study of S. aureus infections on orthopedic implants to determine: (1) whether epidemiological factors can be identified that predict a MRSA infection, (2) the impact of these factors as evidenced by the odds ratio (OR). HYPOTHESIS: Risk factors for a MRSA infection can be identified from a cohort of patients with S...
October 12, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27567058/concomitant-multiple-joint-arthroplasty-infections-report-on-16-cases
#10
Valérie Zeller, Delphine Dedome, Luc Lhotellier, Wilfrid Graff, Nicole Desplaces, Simon Marmor
BACKGROUND: Concomitant infections of several prostheses are very rare, serious events that pose particular medical and surgical therapeutic challenges. This study was undertaken to describe epidemiologic, clinical, and microbiological characteristics of concomitant multiple joint arthroplasty infections, their treatments, and outcomes. METHODS: Retrospective (January 2000 and January 2014), single-center, cohort study in a referral center for bone and joint infections...
November 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27561596/antibiotic-resistance-in-early-periprosthetic-joint-infection
#11
Saiprasad Ravi, Mark Zhu, Christopher Luey, Simon W Young
BACKGROUND: Prophylactic antibiotics significantly reduce prosthetic joint infection (PJI) rates after hip and knee arthroplasty. However, rising antibiotic resistance has raised concerns over the adequacy of conventional prophylaxis. This study aimed to identify organisms causing PJIs in hip and knee arthroplasty secondary to perioperative contamination and their susceptibility to current prophylactic antibiotics. METHODS: We performed a retrospective audit of 4009 primary hip and knee arthroplasties (1852 hips and 2157 knees) at three tertiary referral hospitals...
December 2016: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/27528869/predictors-of-staphylococcus-aureus-colonization-and-results-after-decolonization
#12
Tennison L Malcolm, Le Don Robinson, Alison K Klika, Deepak Ramanathan, Carlos A Higuera, Trevor G Murray
Protocols for the screening and decolonization of Staphylococcus aureus prior to total joint arthroplasty (TJA) have become widely adopted. The goals of this study were to determine: (1) whether implementation of a screening protocol followed by decolonization with mupirocin/vancomycin and chlorhexidine reduces the risk of revision compared with no screening protocol (i.e., chlorhexidine alone) and (2) whether clinical criteria could reliably predict colonization with MSSA and/or MRSA. Electronic medical records of primary patients undergoing TJA that were screened (n = 3,927) and were not screened (n = 1,751) for Staphylococcus aureus at least 4 days prior to surgery, respectively, were retrospectively reviewed...
2016: Interdisciplinary Perspectives on Infectious Diseases
https://www.readbyqxmd.com/read/27511201/one-stage-revision-with-catheter-infusion-of-intraarticular-antibiotics-successfully-treats-infected-tha
#13
Leo A Whiteside, M E Roy
BACKGROUND: Two-stage revision surgery for infected total hip arthroplasty (THA) is commonly advocated, but substantial morbidity and expense are associated with this technique. In certain cases of infected THA, treatment with one-stage revision surgery and intraarticular infusion of antibiotics may offer a reasonable alternative with the distinct advantage of providing a means of delivering the drug in high concentrations. QUESTIONS/PURPOSES: We describe a protocol for intraarticular delivery of antibiotics to the hip through an indwelling catheter combined with one-stage revision surgery and examine (1) the success as judged by eradication of infection at 1 year when treating chronically infected cemented stems; (2) success in treating late-onset acute infections in well-ingrown cementless stems; and (3) what complications were associated with this approach in a small case series...
August 10, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27464468/-prosthetic-joint-infection-in-patients-with-hip-fracture-differences-from-infection-of-elective-prosthesis
#14
J M Barbero, E Montero, A Vallés, M A Plasencia, J Romanyk, J Gómez
OBJECTIVE: Most publications about prosthetic joint infections (PJI) are referred to elective prosthesis and they exclude arthroplasties due to hip fracture. METHODS: We conducted a descriptive study about prosthetic joint infections after joint fracture in Alcalá de Henares Hospital (Madrid) between 2009 and 2014 and we compared with elective prosthetic infections in the same period. RESULTS: There were 30 PJI after hip fracture and 14 elective PJI...
October 2016: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/27387479/methicillin-resistant-and-methicillin-sensitive-staphylococcus-aureus-screening-and-decolonization-to-reduce-surgical-site-infection-in-elective-total-joint-arthroplasty
#15
Scott M Sporer, Thea Rogers, Linda Abella
BACKGROUND: Deep infection after elective total joint arthroplasty remains a devastating complication. Preoperative nasal swab screening for Staphylococcus aureus colonization and subsequent treatment of colonized patients is one proposed method to identify at-risk patients and decrease surgical site infections (SSIs). The purpose of this study was to determine whether a preoperative staphylococcus screening and treatment program would decrease the incidence of SSI in elective joint arthroplasty patients...
September 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27365477/infection-in-total-elbow-arthroplasty-with-stable-components-outcomes-of-a-staged-surgical-protocol-with-retention-of-the-components
#16
P N Streubel, J P Simone, B F Morrey, J Sanchez-Sotelo, M E Morrey
AIMS: We describe the use of a protocol of irrigation and debridement (I&D) with retention of the implant for the treatment of periprosthetic infection of a total elbow arthroplasty (TEA). This may be an attractive alternative to staged re-implantation. PATIENTS AND METHODS: Between 1990 and 2010, 23 consecutive patients were treated in this way. Three were lost to follow-up leaving 20 patients (21 TEAs) in the study. There were six men and 14 women. Their mean age was 58 years (23 to 76)...
July 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27362924/can-teicoplanin-be-an-effective-choice-for-antibiotic-impregnated-cement-spacer-in-two-stage-revision-total-knee-arthroplasty
#17
Abdul Fettah Buyuk, Hakan Sofu, Ismet Yalkin Camurcu, Hanifi Ucpunar, Mehmet Akif Kaygusuz, Vedat Sahin
The main purpose of this study was to evaluate the clinical results of two-stage revision total knee arthroplasty using a teicoplanin-impregnated cement spacer for infected primary total knee replacements. Twenty-five patients operated between 2005 and 2012 were included in this study. At the clinical status analysis, rate of infection eradication was assessed, physical examination was performed, Knee Society Score (KSS) was noted, isolated microorganisms were recorded, and the radiographic evaluation was performed...
June 30, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27237775/comparison-of-microbial-dna-enrichment-tools-for-metagenomic-whole-genome-sequencing
#18
Matthew Thoendel, Patricio R Jeraldo, Kerryl E Greenwood-Quaintance, Janet Z Yao, Nicholas Chia, Arlen D Hanssen, Matthew P Abdel, Robin Patel
Metagenomic whole genome sequencing for detection of pathogens in clinical samples is an exciting new area for discovery and clinical testing. A major barrier to this approach is the overwhelming ratio of human to pathogen DNA in samples with low pathogen abundance, which is typical of most clinical specimens. Microbial DNA enrichment methods offer the potential to relieve this limitation by improving this ratio. Two commercially available enrichment kits, the NEBNext Microbiome DNA Enrichment Kit and the Molzym MolYsis Basic kit, were tested for their ability to enrich for microbial DNA from resected arthroplasty component sonicate fluids from prosthetic joint infections or uninfected sonicate fluids spiked with Staphylococcus aureus...
August 2016: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/27235328/the-diagnosis-of-infection-in-metal-on-metal-hip-arthroplasties
#19
George Grammatopoulos, Mitsuru Munemoto, Yusuke Inagaki, Yasuhito Tanaka, Nicholas A Athanasou
BACKGROUND: Distinction of aseptic from septic hip arthroplasty failure can be challenging. Some studies report an increased incidence of septic failure with metal-on-metal (MoM) hip arthroplasties. The Musculoskeletal Infection Society (MSIS) have formulated criteria to facilitate the diagnosis of periprosthetic joint infection (PJI). In this study, we determined the prevalence and histologic features of septic MoM hip failure. METHODS: Overall, 104 cases of failed MoM hip arthroplasty, classified as septic or aseptic by MSIS microbiological criteria, were analyzed...
April 12, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27218082/characterization-of-hip-and-knee-arthroplasties-and-factors-associated-with-infection
#20
Cibele Zdebsky da Silva Pinto, Francine Taporosky Alpendre, Christiane Johnscher Niebel Stier, Eliane Cristina Sanches Maziero, Paulo Gilberto Cimbalista de Alencar, Elaine Drehmer de Almeida Cruz
OBJECTIVE: To characterize arthroplasty procedures, calculate the surgical infection rate and identify related risk factors. METHODS: This was a retrospective cohort study. Data on operations performed between 2010 and 2012 were gathered from documental sources and were analyzed with the aid of statistical software, using Fisher's exact test, Student's t test and the nonparametric Mann-Whitney and Wilcoxon tests. RESULTS: 421 total arthroplasty procedures performed on 346 patients were analyzed, of which 208 were on the knee and 213 on the hip...
November 2015: Revista Brasileira de Ortopedia
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