scholarly journals Large variations in clinical antibiotic activity against Staphylococcus aureus biofilms of periprosthetic joint infection isolates

2019 ◽  
Vol 37 (7) ◽  
pp. 1604-1609 ◽  
Author(s):  
Jonathan B. Mandell ◽  
Sara Orr ◽  
John Koch ◽  
Blake Nourie ◽  
Dongzhu Ma ◽  
...  
Author(s):  
Katherine M. Caflisch ◽  
Robin Patel

We recently reported the successful treatment of a case of periprosthetic joint infection (PJI) with phage. Phage activity against bacteria causing PJI has not been systematically evaluated. Here we examined the in vitro activity of seven lytic phages against 122 clinical isolates of Staphylococcus aureus recovered between April 1999 and February 2018 from subjects with PJI. Phages were assessed against planktonic and biofilm phenotypes. Activity of individual phages was demonstrated against up to 73% of bacterial isolates in the planktonic state and up to 100% of biofilms formed by isolates that were planktonically phage-susceptible. Susceptibility to phage was not correlated with small colony variant status. These results demonstrate that phages can infect S. aureus causing PJI in both planktonic and biofilm phenotypes, and thus are worthy of investigation as an alternative or addition to antibiotics in this setting.


2011 ◽  
Vol 63 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Parham Sendi ◽  
Florian Banderet ◽  
Peter Graber ◽  
Werner Zimmerli

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S645-S645
Author(s):  
Hye-Kyung Cho ◽  
Melissa J Karau ◽  
Kerryl E Greenwood-Quaintance ◽  
Karl A Hansford ◽  
Matthew A Cooper ◽  
...  

Abstract Background The vancapticins are modified vancomycin derivatives developed by adding membrane targeting motifs to the C-terminus of vancomycin. We determined the in vitro activity of a lead vancapticin candidate against periprosthetic joint infection-associated methicillin-resistant Staphylococcus aureus (MRSA) in the planktonic and biofilm states, and the effect of adding 0.002% polysorbate 80 (P-80; Sigma-Aldrich) on vancapticin susceptibility testing. Methods Thirty-seven clinical isolates of MRSA collected at Mayo Clinic (Rochester, Minnesota) were studied. Vancapticin minimum inhibitory concentrations (MICs) were determined using Clinical and Laboratory Standards Institutes guidelines. Minimum biofilm bactericidal concentrations (MBBCs) were determined using a pegged lid microtiter plate assay. Vancapticin MIC and MBBC values were assessed with and without P-80. Vancapticin, vancomycin, and dalbavancin biofilm time-kill assays were performed using biofilms formed by 10 MRSA isolates on Teflon coupons. Results Vancapticin MICs with and without P-80 ranged from 0.015 to 0.12 μg/mL and 0.25 to 1 μg/mL, respectively. Vancapticin MBBCs with and without P-80 ranged from 0.25 to 4 μg/mL and 1 to 8 μg/mL, respectively. Reductions of biofilm bacterial densities on Teflon coupons after 8 and 24 hours of incubation with vancapticin, vancapticin with P-80, vancomycin, or dalbavancin with P-80 were less than 3-log10 cfu/cm2 for all isolates tested. Conclusion Vancapticin has promising in vitro activity against planktonic MRSA and MRSA in a pegged lid biofilm assay, but was not bactericidal against biofilms on Teflon coupons. P-80 decreased vancapticin MICs and MBBCs. Disclosures Mark A. Blaskovich, PhD, MAB Consulting (Consultant)The University of Queensland (Employee, Grant/Research Support, Other Financial or Material Support, Inventor on patent) Robin Patel, MD, Accelerate Diagnostics (Grant/Research Support)CD Diagnostics (Grant/Research Support)Contrafect (Grant/Research Support)Curetis (Consultant)GenMark Diagnostics (Consultant)Heraeus Medical (Consultant)Hutchison Biofilm Medical Solutions (Grant/Research Support)Merck (Grant/Research Support)Next Gen Diagnostics (Consultant)PathoQuest (Consultant)Qvella (Consultant)Samsung (Other Financial or Material Support, Dr. Patel has a patent on Bordetella pertussis/parapertussis PCR issued, a patent on a device/method for sonication with royalties paid by Samsung to Mayo Clinic, and a patent on an anti-biofilm substance issued.)Selux Dx (Consultant)Shionogi (Grant/Research Support)Specific Technologies (Consultant)


Author(s):  
Hye-Kyung Cho ◽  
Melissa J. Karau ◽  
Kerryl E. Greenwood-Quaintance ◽  
Karl A. Hansford ◽  
Matthew A. Cooper ◽  
...  

MRSA periprosthetic 1 joint infection (PJI) can be challenging to treat due to biofilm formation, alongside sometimes limited vancomycin activity (1-3).…


2020 ◽  
Vol 38 (9) ◽  
pp. 2065-2073 ◽  
Author(s):  
Rebecca J. Mills ◽  
Alexandra Boyling ◽  
Tegan L. Cheng ◽  
Lauren Peacock ◽  
Paul B. Savage ◽  
...  

2018 ◽  
Vol 3 (3) ◽  
pp. 2473011418S0007
Author(s):  
James Lachman ◽  
Jania A. Ramos ◽  
James Nunley ◽  
James DeOrio ◽  
Samuel Adams

Category: Ankle Introduction/Purpose: Acute hematogenous periprosthetic joint infection(PJI) is defined in the literature as infection diagnosed and treated within two to four weeks from the onset of symptoms. In total hip and knee arthroplasty, irrigation, debridement(I&D) and polyethylene exchange with component retention is the treatment of choice. There is minimal literature evaluating this treatment method for PJI in total ankle arthroplasty (TAA), however, with four patients being the largest sample size. The purpose of this study was to evaluate both the clinical and patient reported outcomes and survivorship of treating PJI in TAA with I&D and polyethylene exchange in patients with acute hematogenous PJIs. Methods: A single center, retrospective chart review of prospectively collected data in patients with TAA PJI who subsequently underwent I&D and polyethylene exchange with retention of metal components was conducted. The primary outcome was failure rate of I&D and polyethylene exchange where failure was defined as subsequent removal of all components and two-stage revision or arthrodesis. Patient reported outcomes collected before primary arthroplasty, after primary arthroplasty and after polyethylene exchange were also analyzed. Results: We identified 11 patients with acute hematogenous PJI who underwent I&D/ polyethylene exchange with retention of metal components. The average time from onset of symptoms to I&D/ polyethylene exchange was 11.55 days +/-5.57. The mean follow-up after this surgery was 2.8 years +/-1.45. The long-term failure rate was 50%. The most common bacteria isolated in patients who failed was Methicillin Resistant Staphylococcus Aureus (MRSA). The most common bacteria isolated in patients who retained their implants was Methicillin Sensitive Staphylococcus Aureus(MSSA). Visual Analog Scale (VAS), Short Musculoskeletal Function Assessment (SMFA), Short Form-36 (SF36), and American Orthopaedic Foot and Ankle Society (AOFAS) hindfoot scale showed significant improvement when compared to preoperative scores in patients who retained their implants both after primary and after I&D and polyethylene exchange. Conclusion: I&D and polyethylene exchange with retention of metal components has comparable long-term survivorship to those reported in the Knee and Hip Arthroplasty literature. Patient reported outcomes after I&D and polyethylene exchange were comparable to those collected after primary arthroplasty in patients who ultimately retained their implants. Two variables which were independent predictors of failure of this surgery include duration of symptoms prior to I&D as well as organism isolated on culture. With a failure rate of 50%, the authors recommend thorough evaluation on a case by case basis prior to indicating a patient for single stage I&D with polyethylene exchange.


2018 ◽  
Vol 39 (11) ◽  
pp. 1266-1271 ◽  
Author(s):  
James R. Lachman ◽  
Jania A. Ramos ◽  
James K. DeOrio ◽  
Mark E. Easley ◽  
James A. Nunley ◽  
...  

Background: Acute hematogenous periprosthetic joint infection (PJI) is defined in the literature as infection diagnosed and treated within 2 to 4 weeks from the onset of symptoms. In total hip and knee arthroplasty, irrigation and debridement (I&D) and polyethylene exchange with component retention has been studied extensively. However, there is minimal literature evaluating this treatment method for PJI in total ankle arthroplasty (TAA). The purpose of this study was to evaluate both the clinical and patient-reported outcomes and survivorship of TAA acute hematogenous PJIs treated with I&D and polyethylene exchange. Methods: A single-center, retrospective chart review of prospectively collected data in patients with TAA PJI who subsequently underwent I&D and polyethylene exchange with retention of metal components was conducted. The primary outcome was failure rate of I&D and polyethylene exchange, where failure was defined as subsequent removal of all components and 2-stage revision or arthrodesis. Patient-reported outcomes collected before primary arthroplasty, after primary arthroplasty, and after polyethylene exchange were also analyzed. Results: We identified 14 patients with acute hematogenous PJI who underwent I&D and polyethylene exchange with retention of metal components. The mean time from primary TAA to symptoms was 43 months (range 1-147 months). The average time from onset of symptoms to I&D and polyethylene exchange was 11.4 ± 5.6 days. The mean follow-up after this surgery was 2.8 ± 1.5 years. The long-term failure rate was 54%. The most common bacteria isolated in patients who failed was methicillin-resistant Staphylococcus aureus (MRSA). The most common bacteria isolated in patients who retained their implants was methicillin-sensitive Staphylococcus aureus (MSSA). Visual analog scale (VAS), Short Musculoskeletal Function Assessment (SMFA), Short Form-36 (SF-36), and American Orthopaedic Foot & Ankle Society (AOFAS) hindfoot scale showed significant improvement when compared to preoperative scores in patients who retained their implants both after primary and after I&D and polyethylene exchange. Conclusions: I&D and polyethylene exchange with retention of metal components has a long-term survivorship comparable to those reported in the total knee and total hip arthroplasty literature. Patient-reported outcomes after I&D and polyethylene exchange were comparable to those collected after primary arthroplasty in those patients who ultimately retained their implants. Two variables in this cohort that were associated with I&D and polyethylene exchange failure include time the patient was symptomatic prior to I&D as well as organism isolated on culture. With a failure rate of 54%, the authors recommend thorough evaluation on a case-by-case basis prior to indicating a patient for single-stage I&D with polyethylene exchange. Levels of Evidence: Level IV, case series.


Author(s):  
Sébastien Dufour ◽  
Lionel Piroth ◽  
Catherine Chirouze ◽  
Pierre Tattevin ◽  
Agathe Becker ◽  
...  

Abstract Among 143 patients of the VIRSTA cohort study having Staphylococcus aureus bacteremia and an arthroplasty implanted for more than a year, S. aureus periprosthetic joint infection was observed in 19%. Signs of infection (pain and swelling) were always present, in median 1 day (extremes: 0- 21) after onset of bacteremia.


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