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Moran A, Arellano J, Bregman K, McElvania E. Evaluation of a BioFire multiplex PCR panel for detection of joint infections using retrospective and prospectively collected specimens. J Clin Microbiol 2024; 62:e0018224. [PMID: 39016560 PMCID: PMC11323555 DOI: 10.1128/jcm.00182-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 06/25/2024] [Indexed: 07/18/2024] Open
Abstract
The BioFire Joint Infection Panel (JI panel) is a newly FDA-approved multiplex PCR assay for detection of common bone and joint pathogens with 39 targets which include select Gram-positive and Gram-negative bacteria, yeast, and antimicrobial resistance genes. We evaluated the performance of the JI panel in detecting joint infections in our patient population. Sixty-three frozen, residual joint fluid specimens were retrospectively tested using the JI panel. An additional 104 residual joint fluid specimens were de-identified and prospectively tested within 1 week of collection. Results from routine bacterial cultures were used as the reference standard, which included inoculation to agar plates and blood culture bottles. For the frozen specimens, the JI panel showed a positive percent agreement (PPA) of 92.8% and a negative percent agreement (NPA) of 97.1%. PPA was 71.4% and NPA was 94.8% for fresh specimens. A total of 12 discrepancies were observed among the 167 specimens tested. The JI panel demonstrated good overall agreement with routine culture for the detection of joint infections and may improve timely diagnosis when used in conjunction with bacterial culture. However, potential false-positive and false-negative results were observed in both retrospective and prospective testing of specimens.IMPORTANCEThe BioFire JI panel is a new commercially available multiplex PCR assay for detecting common pathogens causing bone and joint infections. The test is performed directly on joint fluids with a fast turnaround time of 1 hour. Our study shows that while the JI panel overall shows good agreement with routine culture, discrepancies were observed in 7% of cases and results should be interpreted with appropriate clinical context.
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Affiliation(s)
- Angelica Moran
- Department of Pathology and Laboratory Medicine, Endeavor Health, Evanston, Illinois, USA
- Department of Pathology, University of Chicago, Pritzker School of Medicine, Chicago, Illinois, USA
| | - Jekzaly Arellano
- Department of Pathology and Laboratory Medicine, Endeavor Health, Evanston, Illinois, USA
| | - Karen Bregman
- Department of Pathology and Laboratory Medicine, Endeavor Health, Evanston, Illinois, USA
| | - Erin McElvania
- Department of Pathology and Laboratory Medicine, Endeavor Health, Evanston, Illinois, USA
- Department of Pathology, University of Chicago, Pritzker School of Medicine, Chicago, Illinois, USA
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Pichler L, Li Z, Khakzad T, Perka C, Pumberger M, Schömig F. Microbial spectrum, patient-specific factors, and diagnostics in implant-related postoperative spondylodiscitis. Bone Jt Open 2023; 4:832-838. [PMID: 37918440 PMCID: PMC10622184 DOI: 10.1302/2633-1462.411.bjo-2023-0087.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2023] Open
Abstract
Aims Implant-related postoperative spondylodiscitis (IPOS) is a severe complication in spine surgery and is associated with high morbidity and mortality. With growing knowledge in the field of periprosthetic joint infection (PJI), equivalent investigations towards the management of implant-related infections of the spine are indispensable. To our knowledge, this study provides the largest description of cases of IPOS to date. Methods Patients treated for IPOS from January 2006 to December 2020 were included. Patient demographics, parameters upon admission and discharge, radiological imaging, and microbiological results were retrieved from medical records. CT and MRI were analyzed for epidural, paravertebral, and intervertebral abscess formation, vertebral destruction, and endplate involvement. Pathogens were identified by CT-guided or intraoperative biopsy, intraoperative tissue sampling, or implant sonication. Results A total of 32 cases of IPOS with a mean patient age of 68.7 years (37.6 to 84.1) were included. Diabetes, age > 60 years, and history of infection were identified as risk factors. Patient presentation upon admission included a mean body temperature of 36.7°C (36.1 to 38.0), back pain at rest (mean visual analogue scale (VAS) mean 5/10) and when mobile (mean VAS 6/10), as well as elevated levels of CRP (mean 76.8 mg/l (0.4 to 202.9)) and white blood cell count (mean 9.2 units/nl (2.6 to 32.8)). Pathogens were identified by CT-guided or conventional biopsy, intraoperative tissue sampling, or sonication, and Gram-positive cocci presented as the most common among them. Antibiotic therapy was established in all cases with pathogen-specific treatment in 23 (71.9%) subjects. Overall 27 (84.4%) patients received treatment by debridement, decompression, and fusion of the affected segment. Conclusion Cases of IPOS are rare and share similarities with spontaneous spondylodiscitis. While procedures such as CT-guided biopsy and sonication are valuable tools in the diagnosis of IPOS, MRI and intraoperative tissue sampling remain the gold standard. Research on known principles of PJI such as implant retention versus implant exchange need to be expanded to the field of spine surgery.
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Affiliation(s)
- Lorenz Pichler
- Center for Musculoskeletal Surgery Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Zhao Li
- Center for Musculoskeletal Surgery Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Thilo Khakzad
- Center for Musculoskeletal Surgery Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Carsten Perka
- Center for Musculoskeletal Surgery Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Matthias Pumberger
- Center for Musculoskeletal Surgery Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Friederike Schömig
- Center for Musculoskeletal Surgery Charité – Universitätsmedizin Berlin, Berlin, Germany
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dos Santos LS, de Oliveira Sant’Anna L, Theodoro R, dos Santos NNC, Armond BKL, Seabra LF, Alvim LB, Araújo MRB. Prosthetic joint infection caused by an imipenem-resistant Mycobacterium senegalense. Braz J Microbiol 2023; 54:929-934. [PMID: 37020078 PMCID: PMC10234977 DOI: 10.1007/s42770-023-00960-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/29/2023] [Indexed: 04/07/2023] Open
Abstract
Periprosthetic joint infection (PJI) remains one of the most common complications of total knee arthroplasty. Although mainly caused by Staphylococcus aureus and other Gram-positive microorganisms, occasionally, commensal or environmental bacteria are reported as causative agents of these infections. The present work aimed to report a case of PJI caused by an imipenem-resistant Mycobacterium senegalense strain. A bacterial strain isolated from the culture of intraoperative samples was observed by optical microscopy after Gram and Ziehl-Neelsen staining. The species identification was performed by mass spectrometry analysis and partial sequencing of the heat shock protein 65 (hsp65) gene. The antimicrobial profile of the clinical isolate was determined according to the Clinical and Laboratory Standards Institute. Mass spectrometry and gene sequencing analysis identified the bacterial isolate as Mycobacterium fortuitum complex and M. senegalense, respectively. The isolated was found exhibiting an imipenem-resistant profile. The accurate and timely identification, as well as investigation of the antimicrobial susceptibility profile, of fast-growing nontuberculous mycobacteria species are crucial for establishing the prompt and correct treatment of the infection, particularly in cases of patients at greater risk for opportunistic and severe infections.
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Affiliation(s)
- Louisy Sanches dos Santos
- Department of Microbiology, Immunology and Parasitology, Rio de Janeiro State University, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lincoln de Oliveira Sant’Anna
- Department of Microbiology, Immunology and Parasitology, Rio de Janeiro State University, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rafael Theodoro
- Faculty of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | | | - Luisa Ferreira Seabra
- Operational Technical Nucleus, Microbiology, Hermes Pardini Institute, Vespasiano, Minas Gerais Brazil
| | - Luige Biciati Alvim
- Operational Technical Nucleus, Research and Development, Hermes Pardini Institute, Minas Gerais Vespasiano, Brazil
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Almasri D, Dahman Y. Prosthetic Joint Infections: Biofilm Formation, Management, and the Potential of Mesoporous Bioactive Glass as a New Treatment Option. Pharmaceutics 2023; 15:pharmaceutics15051401. [PMID: 37242643 DOI: 10.3390/pharmaceutics15051401] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Infection of prosthetic joints is one of the biggest challenges to a successful replacement of the joint after a total joint arthroplasty. Such infections are caused by bacterial colonies that are difficult to treat by systemic delivery of antibiotics. Local delivery of antibiotics can prove to be the solution to such a devastating outcome that impacts patients' health and ability to regain function in their joints as well as costs the healthcare system millions of dollars every year. This review will discuss prosthetic joint infections in detail with a focus on the development, management, and diagnosis of the infections. Surgeons often opt to use polymethacrylate cement locally to deliver antibiotics; however, due to the rapid release of antibiotics, non-biodegradability, and high chance of reinfection, the search for alternatives is in high demand. One of the most researched alternatives to current treatments is the use of biodegradable and highly compatible bioactive glass. The novelty of this review lies in its focus on mesoporous bioactive glass as a potential alternative to current treatments for prosthetic joint infection. Mesoporous bioactive glass is the focus of this review because it has a higher capacity to deliver biomolecules, stimulate bone growth, and treat infections after prosthetic joint replacement surgeries. The review also examines different synthesis methods, compositions, and properties of mesoporous bioactive glass, highlighting its potential as a biomaterial for the treatment of joint infections.
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Affiliation(s)
- Dana Almasri
- Department of Chemical Engineering, Toronto Metropolitan University, Toronto, ON M5B 2K3, Canada
| | - Yaser Dahman
- Department of Chemical Engineering, Toronto Metropolitan University, Toronto, ON M5B 2K3, Canada
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Macnair R, Rajakulasingam R, Singh S, Khoo M, Upadhyay B, Hargunani R, Pressney I. Image-guided synovial biopsy with a focus on infection. Skeletal Radiol 2023; 52:831-841. [PMID: 36484841 DOI: 10.1007/s00256-022-04245-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 11/27/2022] [Accepted: 11/27/2022] [Indexed: 12/14/2022]
Abstract
Image-guided biopsy of the synovium is a relatively uncommon but safe procedure with a high-diagnostic yield in the correct clinical scenario. Whilst surgical and arthroscopic techniques are still commonly performed and remain the gold standard, they are more invasive, expensive and not widely available. Ultrasound and X-ray-guided synovial biopsy are being increasingly performed by radiologists to diagnose both native and periprosthetic joint infection (PJI) to guide surgical and microbiological management. The purpose of this review article is to present the historical background to synovial biopsy particularly related to potential joint infection, including common and uncommon pathogens encountered, sampling techniques and pitfalls, focusing mainly on its role in PJI and its role in patient pathways and decision-making within a joint infection multi-disciplinary framework.
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Affiliation(s)
- R Macnair
- Department of Radiology, Morriston Hospital, Heol Maes Eglwys, Swansea, SA6 6NL, UK
| | - R Rajakulasingam
- Department of Radiology, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, HA7 4LP, Middlesex, UK
| | - S Singh
- Department of Radiology, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, HA7 4LP, Middlesex, UK
| | - M Khoo
- Department of Radiology, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, HA7 4LP, Middlesex, UK
| | - B Upadhyay
- Department of Radiology, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, HA7 4LP, Middlesex, UK
| | - R Hargunani
- Department of Radiology, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, HA7 4LP, Middlesex, UK
| | - Ian Pressney
- Department of Radiology, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, HA7 4LP, Middlesex, UK.
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Vrancianu CO, Serban B, Gheorghe-Barbu I, Czobor Barbu I, Cristian RE, Chifiriuc MC, Cirstoiu C. The Challenge of Periprosthetic Joint Infection Diagnosis: From Current Methods to Emerging Biomarkers. Int J Mol Sci 2023; 24:ijms24054320. [PMID: 36901750 PMCID: PMC10002145 DOI: 10.3390/ijms24054320] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/18/2023] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
Due to the increase in the life span and mobility at older ages, the number of implanted prosthetic joints is constantly increasing. However, the number of periprosthetic joint infections (PJIs), one of the most severe complications after total joint arthroplasty, also shows an increasing trend. PJI has an incidence of 1-2% in the case of primary arthroplasties and up to 4% in the case of revision operations. The development of efficient protocols for managing periprosthetic infections can lead to the establishment of preventive measures and effective diagnostic methods based on the results obtained after the laboratory tests. In this review, we will briefly present the current methods used in PJI diagnosis and the current and emerging synovial biomarkers used for the prognosis, prophylaxis, and early diagnosis of periprosthetic infections. We will discuss treatment failure that may result from patient factors, microbiological factors, or factors related to errors during diagnosis.
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Affiliation(s)
- Corneliu Ovidiu Vrancianu
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
- The Research Institute of the University of Bucharest, 050095 Bucharest, Romania
| | - Bogdan Serban
- University Emergency Hospital, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Correspondence: (B.S.); (I.G.-B.)
| | - Irina Gheorghe-Barbu
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
- The Research Institute of the University of Bucharest, 050095 Bucharest, Romania
- Correspondence: (B.S.); (I.G.-B.)
| | - Ilda Czobor Barbu
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
- The Research Institute of the University of Bucharest, 050095 Bucharest, Romania
| | - Roxana Elena Cristian
- The Research Institute of the University of Bucharest, 050095 Bucharest, Romania
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
- The Research Institute of the University of Bucharest, 050095 Bucharest, Romania
- Romanian Academy, 010071 Bucharest, Romania
| | - Catalin Cirstoiu
- University Emergency Hospital, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
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