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Propionibacterium shoulder

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https://www.readbyqxmd.com/read/28259563/propionibacterium-acnes-infection-of-a-metacarpophalangeal-joint-arthroplasty
#1
Guillaume Bacle, Sheena K Sikora, Eugene T H Ek
Neglected and underestimated in the past, Propionibacterium acnes is currently the most prevalent organism associated with deep prosthetic infections around the shoulder. Surprisingly, it has never been reported as a cause of infection in the hand. Here we report a case of a late presentation of a P. acnes infection in a metacarpophalangeal joint replacement, resulting in chronic low-grade pain with movement. The patient underwent a 2-stage revision, with initial removal of the prosthesis. Positive cultures for P...
March 1, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28099312/the-emperor-may-truly-have-new-clothes-commentary-on-an-article-by-zahab-s-ahsan-md-et-al-characterizing-the-propionibacterium-load-in-revision-shoulder-arthroplasty-a-study-of-137-culture-positive-cases
#2
https://www.readbyqxmd.com/read/28099305/characterizing-the-propionibacterium-load-in-revision-shoulder-arthroplasty-a-study-of-137-culture-positive-cases
#3
Zahab S Ahsan, Jeremy S Somerson, Frederick A Matsen
BACKGROUND: Propionibacterium is commonly recovered from explants or surrounding tissues in revision shoulder arthroplasty. Rather than attempting to differentiate a true infection from a false-positive result on the basis of the number of positive cultures, we characterized the amount of these bacteria in each specimen and shoulder. METHODS: The study included 137 revision shoulder arthroplasties from which a minimum of 4 specimens had been submitted for culture and at least 1 was positive for Propionibacterium...
January 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28087166/future-surgery-after-revision-shoulder-arthroplasty-the-impact-of-unexpected-positive-cultures
#4
Eric M Padegimas, Cassandra Lawrence, Alexa C Narzikul, Benjamin M Zmistowski, Joseph A Abboud, Gerald R Williams, Surena Namdari
BACKGROUND: The clinical implications and treatment of unexpected positive cultures (UPCs) in revision shoulder arthroplasty are not well defined. The purpose of this study was to describe results of patients with and without UPCs after revision shoulder arthroplasty. METHODS: A single institutional database was used to retrospectively identify all revision shoulder arthroplasties performed between January 1, 2011, and December 31, 2013. Patients with preoperative suspicion of infection were excluded...
January 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28065868/clinical-impact-of-positive-propionibacterium-acnes-cultures-in-orthopedic-surgery
#5
V Lavergne, M Malo, C Gaudelli, M Laprade, S Leduc, P Laflamme, D M Rouleau
BACKGROUND: The clinical significance of a positive culture to Propionibacterium acnes in orthopedic specimens remains unclear, whether about its role as a contaminant or a pathogen, or its impact as a coinfectant. Therefore, we performed a retrospective study to provide a more accurate description of the clinical impact of P. acnes in an orthopedic population aiming to determine: 1) if there is a clinical difference between P. acnes infection and contamination? 2) If there is a clinical difference between P...
January 5, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28002380/propionibacterium-we-found-it-now-we-have-to-deal-with-it-commentary-on-an-article-by-jason-e-hsu-md-et-al-single-stage-revision-is-effective-for-failed-shoulder-arthroplasty-with-positive-cultures-for-propionibacterium
#6
Philipp Moroder, Andrej Trampuz, Markus Scheibel
No abstract text is available yet for this article.
December 21, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28002367/single-stage-revision-is-effective-for-failed-shoulder-arthroplasty-with-positive-cultures-for-propionibacterium
#7
Jason E Hsu, Jacob D Gorbaty, Ian J Whitney, Frederick A Matsen
BACKGROUND: Revision shoulder arthroplasties are often culture-positive for Propionibacterium. This study tests the hypothesis that the functional outcomes of revising Propionibacterium culture-positive failed arthroplasties with a single-stage revision and immediate antibiotic therapy are not inferior to the clinical outcomes of revising failed shoulder arthroplasties that are not culture-positive. METHODS: Fifty-five shoulders without obvious clinical evidence of infection had a single-stage revision arthroplasty...
December 21, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27989720/prevention-of-propionibacterium-acnes-biofilm-formation-in-prosthetic-infections-in-vitro
#8
Robert P Howlin, Christopher Winnard, Elizabeth M Angus, Connor J Frapwell, Jeremy S Webb, John J Cooper, Sean S Aiken, Julie Y Bishop, Paul Stoodley
BACKGROUND: The role of Propionibacterium acnes in shoulder arthroplasty and broadly in orthopedic prosthetic infections has historically been underestimated, with biofilm formation identified as a key virulence factor attributed to invasive isolates. With an often indolent clinical course, P acnes infection can be difficult to detect and treat. This study investigates absorbable cements loaded with a broad-spectrum antibiotic combination as an effective preventive strategy to combat P acnes biofilms...
December 15, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27887875/two-stage-revision-for-infected-shoulder-arthroplasty
#9
Daniel B Buchalter, Siddharth A Mahure, Brent Mollon, Stephen Yu, Young W Kwon, Joseph D Zuckerman
BACKGROUND: Periprosthetic shoulder infections (PSIs) are challenging to treat and often result in significant patient morbidity. Without a standardized treatment protocol, PSIs are often managed similarly to periprosthetic hip and knee infections. Because 2-stage revision is the gold standard for treating periprosthetic hip and knee infections, we performed a case series and literature review to determine its effectiveness in PSIs. METHODS: We identified 19 patients (14 men) from our institution who were treated with a 2-stage revision after presenting with a PSI...
November 22, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27887873/neer-award-2017-a-rapid-method-for-detecting-propionibacterium-acnes-in-surgical-biopsy-specimens-from-the-shoulder
#10
Scott Holmes, Ana M Pena Diaz, George S Athwal, Kenneth J Faber, David B O'Gorman
BACKGROUND: Propionibacterium (P) acnes infection of the shoulder after arthroplasty is a common and serious complication. Current detection methods for P acnes involve anaerobic cultures that require prolonged incubation periods (typically 7-14 days). We have developed a polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) approach that sensitively and specifically identifies P acnes in tissue specimens within a 24-hour period. METHODS: Primers were designed to amplify a unique region of the 16S rRNA gene in P acnes that contained a unique HaeIII restriction enzyme site...
February 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27869623/contamination-of-the-surgical-field-with-propionibacterium-acnes-in-primary-shoulder-arthroplasty
#11
Travis M Falconer, Mohammed Baba, Lisa M Kruse, Oscar Dorrestijn, Matthew J Donaldson, Margaret M Smith, Melanie C Figtree, Bernard J Hudson, Benjamin Cass, Allan A Young
BACKGROUND: Propionibacterium acnes is a common pathogen identified in postoperative shoulder infection. It has been shown to be present in culture specimens during primary shoulder arthroplasty; however, recent work has suggested that it is most likely to be a contaminant. Our aim was to identify the potential sources of contamination in shoulder arthroplasty. METHODS: Tissue swabs were obtained for microbiological analysis from consecutive patients undergoing primary shoulder arthroplasty...
October 19, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27773990/propionibacterium-acnes-susceptibility-and-correlation-with-hemolytic-phenotype
#12
Travis E Wright, K Keely Boyle, Thomas R Duquin, John K Crane
BACKGROUND: Many studies have noted an increase in the number of recognized cases of invasive infections due to Propionibacterium acnes, especially after shoulder replacement surgery. The increase in the number of recognized cases of P. acnes, a nonspore-forming, anaerobic, Gram-positive organism, appears due to both an increase in the number of shoulder operations being performed and more specimens being sent for anaerobic cultures. Nevertheless, the optimal surgical and antibiotic management of P...
2016: Infectious Diseases
https://www.readbyqxmd.com/read/27727049/the-cost-effectiveness-of-vancomycin-for-preventing-infections-after-shoulder-arthroplasty-a-break-even-analysis
#13
M Daniel Hatch, Stephen D Daniels, Kimberly M Glerum, Laurence D Higgins
BACKGROUND: Increasing methicillin resistance and recognition of Propionibacterium acnes as a cause of infection in shoulder arthroplasty has led to the adoption of local vancomycin powder application as a more effective method to prevent expensive periprosthetic infections. However, no study has analyzed the cost effectiveness of vancomycin powder for preventing infection after shoulder replacement. METHODS: Cost data for infection-related care of 16 patients treated for deep periprosthetic shoulder infection was collected from our institution for the break-even analysis...
March 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27583013/ten-questions-on-prosthetic-shoulder-infection
#14
REVIEW
Elizabeth M Pinder, Joshua Cy Ong, R Stephen Bale, Ian A Trail
Prosthetic shoulder infection can cause significant morbidity secondary to pain and stiffness. Symptoms may be present for years before diagnosis because clinical signs are often absent and inflammatory markers may be normal. An emerging common culprit, Propionibacterium acnes, is hard to culture and so prolonged incubation is necessary. A negative culture result does not always exclude infection and new synovial fluid biochemical markers such as α defensin are less sensitive than for lower limb arthroplasty...
July 2016: Shoulder & Elbow
https://www.readbyqxmd.com/read/27342982/infections-following-arthroscopic-rotator-cuff-repair-incidence-risk-factors-and-prophylaxis
#15
Leo Pauzenberger, Annemarie Grieb, Michael Hexel, Brenda Laky, Werner Anderl, Philipp Heuberer
PURPOSE: The primary aim of the present study was to determine the incidence of infections following arthroscopic rotator cuff repair in a single department over a 10-year period. Secondary goals included the evaluation of potential risk factors for infections and to investigate the efficacy of perioperative antibiotic prophylaxis in the reduction of infectious complications. METHODS: A retrospective evaluation of 3294 all-arthroscopic rotator cuff repairs performed between 2004 and 2014 at a single institution was conducted to determine the rate of infection in all-arthroscopic rotator cuff repairs...
June 24, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27053589/propionibacterium-in-shoulder-arthroplasty-what-we-think-we-know-today
#16
REVIEW
Jason E Hsu, Roger E Bumgarner, Frederick A Matsen
➤ Propionibacterium is a slow-growing gram-positive rod that is part of the normal skin microbiome but can be found on culture of specimens from a large number of patients having revision shoulder arthroplasty performed for pain, stiffness, and component loosening. ➤ Propionibacterium infections do not present with obvious signs of infection, such as swelling, erythema, drainage, or tenderness, but rather are of the so-called stealth type, presenting with unexplained pain, stiffness, or component loosening months to years after the index arthroplasty...
April 6, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27038565/the-challenge-of-propionibacterium-acnes-and-revision-shoulder-arthroplasty-a-review-of-current-diagnostic-options
#17
REVIEW
Margaret V Shields, Leath Abdullah, Surena Namdari
BACKGROUND: Propionibacterium acnes is the most common cause of infection after shoulder arthroplasty. Whereas there are several methods that can aid in the diagnosis of P. acnes infection, there is not a single "gold standard" because of the difficulties inherent in identifying this bacterium. We present an evidence-based discussion of the demographic, clinical, and radiographic predictors of P. acnes infection and review the current options for diagnosis. METHODS: This review was written after a comprehensive analysis of the current literature related to shoulder periprosthetic joint infection and P...
June 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27017334/propionibacterium-prosthetic-joint-infection-experience-from-a-retrospective-database-analysis
#18
Anna Rienmüller, Olivier Borens
BACKGROUND: With improved diagnostic methods and longer prosthesis indwelling time, the frequency of diagnosed Propionibacterium prosthetic joint infections (PJI) is increasing. Data on clinical, microbiological, radiological and surgical treatment are limited, and importance of this organism in PJI is probably underestimated. MATERIALS AND METHODS: We retrospectively analyzed patients with PJI caused by Propionibacterium spp. diagnosed at our institution between 2000 and 2012...
May 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27012542/outcomes-in-the-treatment-of-periprosthetic-joint-infection-after-shoulder-arthroplasty-a-systematic-review
#19
Gregory N Nelson, Daniel E Davis, Surena Namdari
BACKGROUND: Although many case series have been published on the treatment of shoulder periprosthetic joint infection (PJI), few provide direct comparison of outcomes. This systematic review synthesizes the available English literature on shoulder PJI to quantify treatment effectiveness. METHODS: The PubMed and Embase databases were searched in April 2014. Keywords included "shoulder replacement infection" and "shoulder arthroplasty infection." Of 663 titles, 55 manuscripts underwent full-text review after application of exclusion criteria...
August 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/26948006/loose-glenoid-components-in-revision-shoulder-arthroplasty-is-there-an-association-with-positive-cultures
#20
Robert M Lucas, Jason E Hsu, Ian J Whitney, Jory Wasserburger, Frederick A Matsen
BACKGROUND: Glenoid loosening is one of the most common causes of total shoulder failure. High rates of positive cultures of Propionibacterium and coagulase-negative staphylococcus have been found among shoulders having surgical revision for glenoid loosening. This study reviewed the culture results in a series of surgical revisions for failed total shoulder arthroplasty to determine the relationship between glenoid loosening and positive cultures. METHODS: The medical records of 221 patients without obvious evidence of infection who underwent revision total shoulder arthroplasty were reviewed to examine the association between the security of fixation of the glenoid component and the results of cultures obtained at revision surgery...
August 2016: Journal of Shoulder and Elbow Surgery
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