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Lin YC, Chen JP, Lee SH, Chang CH, Hu CC, Lin SH. Prognostic Implications of Unexpected Positive Intraoperative Cultures in Two-Stage Knee Arthroplasty Reimplantations: A Minimum Five-Year Retrospective Analysis. J Arthroplasty 2024:S0883-5403(24)00918-5. [PMID: 39237026 DOI: 10.1016/j.arth.2024.08.049] [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: 05/01/2024] [Revised: 08/27/2024] [Accepted: 08/29/2024] [Indexed: 09/07/2024] Open
Abstract
BACKGROUND The clinical challenge of unexpected positive intraoperative cultures (UPICs) persists in two-stage resection arthroplasty for managing periprosthetic joint infections (PJIs) following total knee arthroplasty (TKA). This study aimed to investigate the incidence of UPICs during the definitive reimplantation phase of two-stage resection arthroplasty of the knee and to assess both the infection- and revision-free survivorship of the implanted prosthesis. METHODS This retrospective study included 450 two-stage resection arthroplasties of primary knee prostheses performed between January 2012 and April 2017. Patients were excluded if they: (1) underwent three or more staged resections; (2) had ambiguous clinical documentation or deviated from the two-stage protocol; or (3) underwent revision arthroplasty prior to the PJI. Additionally, patients presumed aseptic before the second-stage reimplantation were excluded if they lacked joint aspiration or met the 2011 Musculoskeletal Infection Society (MSIS) criteria for PJI before implantation. RESULTS After exclusions, 300 patients were analyzed. Among them, 14% had UPIC during the second-stage reimplantation. The follow-up time was 2,316 (range, 1,888 to 3,737) days and 2,531 (range, 1,947 to 3,349) days for UPIC and negative intraoperative culture (NIC) groups, respectively. Re-revision due to subsequent PJI occurred in 26.2% of UPIC patients and 15.1% of NIC patients. The 2-year infection-free survival rates for the NIC, 1 UPIC, and ≥ 2 UPIC cohorts were 99.5, 98.2, and 94.3%, respectively, while the 5-year survival rates were 92.1, 91.1, and 54.3%, respectively. The unfavorable survivorship was significantly different in multiple UPIC cases (P < 0.001). Multiple UPICs with pathogens consistent with the first-stage findings were strongly associated with the risk of reinfection (P < 0.001). CONCLUSIONS An UPIC was identified in 14% of second-stage reimplantations. Patients who had multiple UPICs demonstrated truncated survivorship and suboptimal outcomes relative to the NIC and single UPIC cohorts, especially with pathogen consistency to the first-stage surgery.
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Affiliation(s)
- Yu-Chih Lin
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital (CGMH), No. 5 Fu-Hsing Street, Kweishan, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital (CGMH), No. 5 Fu-Hsing Street, Kweishan, Taoyuan, Taiwan; College of Medicine, Chang Gung University (CGU), 259 Wen-Hwa 1st Road, Kweishan, Taoyuan, Taiwan
| | - Jui-Ping Chen
- New Taipei City Municipal Tucheng Hospital, No.6, Sec.2, Jincheng Rd., Tucheng Dist., New Taipei City, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital (CGMH), No. 5 Fu-Hsing Street, Kweishan, Taoyuan, Taiwan; College of Medicine, Chang Gung University (CGU), 259 Wen-Hwa 1st Road, Kweishan, Taoyuan, Taiwan
| | - Sheng-Hsun Lee
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital (CGMH), No. 5 Fu-Hsing Street, Kweishan, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital (CGMH), No. 5 Fu-Hsing Street, Kweishan, Taoyuan, Taiwan; College of Medicine, Chang Gung University (CGU), 259 Wen-Hwa 1st Road, Kweishan, Taoyuan, Taiwan
| | - Chih-Hsiang Chang
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital (CGMH), No. 5 Fu-Hsing Street, Kweishan, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital (CGMH), No. 5 Fu-Hsing Street, Kweishan, Taoyuan, Taiwan; College of Medicine, Chang Gung University (CGU), 259 Wen-Hwa 1st Road, Kweishan, Taoyuan, Taiwan
| | - Chih-Chien Hu
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital (CGMH), No. 5 Fu-Hsing Street, Kweishan, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital (CGMH), No. 5 Fu-Hsing Street, Kweishan, Taoyuan, Taiwan; College of Medicine, Chang Gung University (CGU), 259 Wen-Hwa 1st Road, Kweishan, Taoyuan, Taiwan
| | - Sheng-Hsuan Lin
- National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 300, Taiwan.
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Tarabichi S, Goh GS, Fraval A, Lizcano JD, Abe EA, Courtney PM, Namdari S, Parvizi J. Serum and Synovial Markers in the Diagnosis of Periprosthetic Joint Infection of the Hip, Knee, and Shoulder: An Algorithmic Approach. J Bone Joint Surg Am 2024; 106:1221-1230. [PMID: 38776388 DOI: 10.2106/jbjs.23.00669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
➤ No single test has demonstrated absolute accuracy for the diagnosis of periprosthetic joint infection (PJI).➤ Physicians rely on a combination of serological tests, synovial markers, and clinical findings plus clinical judgment to help to guide preoperative decision-making.➤ Several organizations have proposed criteria for the diagnosis of hip or knee PJI on which we now rely.➤ Given that shoulder arthroplasty has only recently become popular, it is possible that a shoulder-specific definition of PJI will be introduced in the coming years.➤ Although a number of serum and synovial markers have demonstrated high accuracy for the diagnosis of PJI of the hip and knee, further research is needed in order to identify markers that may be more suitable for the diagnosis of shoulder PJI and for the potential development and identification of specific serological tests as screening tools for PJI.
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Affiliation(s)
- Saad Tarabichi
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Graham S Goh
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Andrew Fraval
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Juan D Lizcano
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Elizabeth A Abe
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - P Maxwell Courtney
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Surena Namdari
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Javad Parvizi
- International Joint Center, Acibadem University Hospital, Istanbul, Turkey
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Sax FH, Hoyka M, Blersch BP, Fink B. Diagnostics in Late Periprosthetic Infections-Challenges and Solutions. Antibiotics (Basel) 2024; 13:351. [PMID: 38667027 PMCID: PMC11047502 DOI: 10.3390/antibiotics13040351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/02/2024] [Accepted: 04/02/2024] [Indexed: 04/29/2024] Open
Abstract
The rising number of arthroplasties is combined with a rising number of periprosthetic joint infections, which leads to life-concerning consequences for the patients, including extended antibiotic treatment, further surgery and increased mortality. The heterogeneity of the symptoms and inflammatory response of the patients due to, e.g., age and comorbidities and the absence of a single diagnostic test with 100% accuracy make it very challenging to choose the right parameters to confirm or deny a periprosthetic joint infection and to establish a standardized definition. In recent years, additional diagnostic possibilities have emerged primarily through the increasing availability of new diagnostic methods, such as genetic techniques. The aim of the review is to provide an overview of the current state of knowledge about the various tests, including the latest developments. The combination of different tests increases the accuracy of the diagnosis. Each physician or clinical department must select the tests from the available methods that can be best implemented for them in organizational and technical terms. Serological parameters and the cultivation of the samples from aspiration or biopsy should be combined with additional synovial tests to create an accurate figure for the failure of the prosthesis, while imaging procedures are used to obtain additional information for the planned therapeutic procedure.
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Affiliation(s)
- Florian Hubert Sax
- Department of Joint Replacement, General and Rheumatic Orthopaedics, Orthopaedic Clinic Markgröningen gGmbH, Kurt-Lindemann-Weg 10, 71706 Markgröningen, Germany; (F.H.S.); (M.H.); (B.P.B.)
| | - Marius Hoyka
- Department of Joint Replacement, General and Rheumatic Orthopaedics, Orthopaedic Clinic Markgröningen gGmbH, Kurt-Lindemann-Weg 10, 71706 Markgröningen, Germany; (F.H.S.); (M.H.); (B.P.B.)
| | - Benedikt Paul Blersch
- Department of Joint Replacement, General and Rheumatic Orthopaedics, Orthopaedic Clinic Markgröningen gGmbH, Kurt-Lindemann-Weg 10, 71706 Markgröningen, Germany; (F.H.S.); (M.H.); (B.P.B.)
| | - Bernd Fink
- Department of Joint Replacement, General and Rheumatic Orthopaedics, Orthopaedic Clinic Markgröningen gGmbH, Kurt-Lindemann-Weg 10, 71706 Markgröningen, Germany; (F.H.S.); (M.H.); (B.P.B.)
- Orthopaedic Department, University Hospital Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
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Karlidag T, Luo TD, Gehrke T, Citak M. How Reliable Is the Absolute Synovial Polymorphonuclear Neutrophil Cell Count in Diagnosing Periprosthetic Joint Infection? J Arthroplasty 2024; 39:1060-1068. [PMID: 37914034 DOI: 10.1016/j.arth.2023.10.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 11/03/2023] Open
Abstract
BACKGROUND Diagnosing periprosthetic joint infection (PJI) is a daunting task for even the most experienced orthopedic surgeons, as there is currently no test available that can provide absolute accuracy. Utilizing an established synovial indicator for detecting PJI without incurring additional costs or resources would be the optimal solution for predicting the presence of infection. Therefore, we hypothesized that synovial absolute neutrophil count (ANC) would improve the diagnostic accuracy of chronic knee and hip PJI. METHODS The study included 260 patients (134 men and 126 women, mean age of 70 years [range, 26 to 89]) who underwent aspiration during preoperative workup. Of these, 109 patients (41.9%) were diagnosed with chronic PJI (50 knees, 59 hips), and 151 patients (58.1%) were diagnosed as aseptic (94 knees, 57 hips). Data obtained from all patients included age, sex, procedure type (total hip or total knee arthroplasty), operation side, synovial white blood cell count (cells/μL), synovial polymorphonuclear cells percentage, and synovial α-defensin immunoassay value at the admission were retrieved from the electronic medical record. RESULTS The calculated optimal threshold for synovial ANC of 1,415.5 cells/μL was associated with an area under the receiver operating characteristic curve (AUC) of 0.930 for chronic knee PJI diagnosis. The calculated optimal threshold for synovial ANC of 2,247 cells/μL was associated with an AUC of 0.905 for chronic hip PJI diagnosis. CONCLUSIONS This study has conclusively shown that the synovial ANC serves as a valuable marker in the complicated diagnosis of PJI. This highly effective and efficient approach should be utilized for obtaining further information through standard tests, thereby ruling out the possibility of PJI. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Taner Karlidag
- Department of Orthopaedic Surgery, Helios ENDO-Klinik Hamburg, Hamburg, Germany
| | | | - Thorsten Gehrke
- Department of Orthopaedic Surgery, Helios ENDO-Klinik Hamburg, Hamburg, Germany
| | - Mustafa Citak
- Department of Orthopaedic Surgery, Helios ENDO-Klinik Hamburg, Hamburg, Germany
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Davis JS, Dewar D, Manning L. Prosthetic joint infection diagnosis in an age of changing clinical patterns of infection and new technologies. Med J Aust 2024; 220:225-228. [PMID: 38351733 DOI: 10.5694/mja2.52228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/31/2024] [Indexed: 03/18/2024]
Affiliation(s)
- Joshua S Davis
- University of Newcastle, Newcastle, NSW
- Hunter Medical Research Institute, Newcastle, NSW
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Nelson SB, Pinkney JA, Chen AF, Tande AJ. Periprosthetic Joint Infection: Current Clinical Challenges. Clin Infect Dis 2023; 77:e34-e45. [PMID: 37434369 PMCID: PMC11004930 DOI: 10.1093/cid/ciad360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Indexed: 07/13/2023] Open
Abstract
Over the last several decades, periprosthetic joint infection has been increasing in incidence and is occurring in more complex patients. While there have been advances in both surgical and medical treatment strategies, there remain important gaps in our understanding. Here, we share our current approaches to the diagnosis and management of periprosthetic joint infection, focusing on frequent clinical challenges and collaborative interdisciplinary care.
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Affiliation(s)
- Sandra B Nelson
- Division of Infectious Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jodian A Pinkney
- Division of Infectious Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Antonia F Chen
- Department of Orthopedic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Aaron J Tande
- Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Wang Y, Li G, Ji B, Xu B, Zhang X, Maimaitiyiming A, Cao L. Diagnosis of periprosthetic joint infections in patients who have rheumatoid arthritis. Bone Joint Res 2023; 12:559-570. [PMID: 37704202 PMCID: PMC10499527 DOI: 10.1302/2046-3758.129.bjr-2022-0432.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/15/2023] Open
Abstract
Aims To investigate the optimal thresholds and diagnostic efficacy of commonly used serological and synovial fluid detection indexes for diagnosing periprosthetic joint infection (PJI) in patients who have rheumatoid arthritis (RA). Methods The data from 348 patients who had RA or osteoarthritis (OA) and had previously undergone a total knee (TKA) and/or a total hip arthroplasty (THA) (including RA-PJI: 60 cases, RA-non-PJI: 80 cases; OA-PJI: 104 cases, OA-non-PJI: 104 cases) were retrospectively analyzed. A receiver operating characteristic curve was used to determine the optimal thresholds of the CRP, ESR, synovial fluid white blood cell count (WBC), and polymorphonuclear neutrophil percentage (PMN%) for diagnosing RA-PJI and OA-PJI. The diagnostic efficacy was evaluated by comparing the area under the curve (AUC) of each index and applying the results of the combined index diagnostic test. Results For PJI prediction, the results of serological and synovial fluid indexes were different between the RA-PJI and OA-PJI groups. The optimal cutoff value of CRP for diagnosing RA-PJI was 12.5 mg/l, ESR was 39 mm/hour, synovial fluid WBC was 3,654/μl, and PMN% was 65.9%; and those of OA-PJI were 8.2 mg/l, 31 mm/hour, 2,673/μl, and 62.0%, respectively. In the RA-PJI group, the specificity (94.4%), positive predictive value (97.1%), and AUC (0.916) of synovial fluid WBC were higher than those of the other indexes. The optimal cutoff values of synovial fluid WBC and PMN% for diagnosing RA-PJI after THA were significantly higher than those of TKA. The specificity and positive predictive value of the combined index were 100%. Conclusion Serum inflammatory and synovial fluid indexes can be used for diagnosing RA-PJI, for which synovial fluid WBC is the best detection index. Combining multiple detection indexes can provide a reference basis for the early and accurate diagnosis of RA-PJI.
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Affiliation(s)
- Yulai Wang
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Guoqing Li
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Baochao Ji
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Boyong Xu
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Xiaogang Zhang
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | | | - Li Cao
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
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8
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Cotten SW, Block DR. A Review of Current Practices and Future Trends in Body Fluid Testing. J Appl Lab Med 2023; 8:962-983. [PMID: 37207691 DOI: 10.1093/jalm/jfad014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/27/2023] [Indexed: 05/21/2023]
Abstract
BACKGROUND Body fluid testing in the clinical chemistry laboratory is a cornerstone in the diagnostic workup of pathological effusions. Laboratorians may not be aware of the preanalytical workflows used in the collection of body fluids though the value is evident whenever processes change or issues arise. The analytical validation requirements can vary depending on the regulations dictated by the laboratories' jurisdiction and accreditor requirements. Much of analytical validation hinges on how useful testing is to clinical care. Usefulness of testing varies with how well established and incorporated the tests and interpretation are in practice guidelines. CONTENT Body fluid collections are depicted and described so clinical laboratorians have a basic appreciation of what specimens are submitted to the laboratory for testing. A review of validation requirements by major laboratory accreditation entities is presented. A review of the usefulness and proposed decision limits for common body fluid chemistry analytes is presented. Body fluid tests that show promise and those that are losing (or lost long ago) value are also reviewed. SUMMARY The total testing process from collection to result interpretation can be complicated and easily overlooked by the clinical laboratory. This review aims to improve the understanding and awareness of collections, validation, result interpretation, and provide an update on recent trends.
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Affiliation(s)
- Steven W Cotten
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Darci R Block
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States
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Quinlan ND, Jennings JM. Joint aspiration for diagnosis of chronic periprosthetic joint infection: when, how, and what tests? ARTHROPLASTY 2023; 5:43. [PMID: 37658416 PMCID: PMC10474645 DOI: 10.1186/s42836-023-00199-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 06/14/2023] [Indexed: 09/03/2023] Open
Abstract
Diagnosing chronic periprosthetic joint infection (PJI) requires clinical suspicion in combination with both serological and synovial fluid tests, the results of which are generally applied to validated scoring systems or consensus definitions for PJI. As no single "gold standard" test exists, the diagnosis becomes challenging, especially in the setting of negative cultures or equivocal test results. This review aims to address the workup of chronic PJI and considerations for clinical evaluation to guide treatment. Following aspiration of the joint in question, a multitude of tests has been developed in an attempt to assist with diagnosis, including cell synovial white blood cell count, gram stain, cultures, leukocyte esterase, alpha-defensin, synovial C-reactive protein, multiplex polymerase chain reaction, next-generation sequencing, and interleukins. Each test has advantages and disadvantages and should be used in conjunction with the overall clinical picture to guide further clinical evaluation and treatment in this complex patient population.
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Affiliation(s)
- Nicole Durig Quinlan
- Colorado Joint Replacement, 2535 S. Downing Street, Ste 100, Denver, CO, 80210, USA
| | - Jason M Jennings
- Colorado Joint Replacement, 2535 S. Downing Street, Ste 100, Denver, CO, 80210, USA.
- Department of Mechanical and Materials Engineering, University of Denver, 2155 E. Wesley Ave, Denver, CO, 80210, USA.
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Haddad FS. Looking ahead to autumn. Bone Joint J 2023; 105-B:943-945. [PMID: 37652451 DOI: 10.1302/0301-620x.105b9.bjj-2023-0780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Affiliation(s)
- Fares S Haddad
- Princess Grace Hospital, London, UK
- University College London Hospitals and The NIHR Biomedical Research Centre at UCLH, London, UK
- The Bone & Joint Journal , London, UK
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Tripathi S, Tarabichi S, Parvizi J, Rajgopal A. Current relevance of biomarkers in diagnosis of periprosthetic joint infection: an update. ARTHROPLASTY 2023; 5:41. [PMID: 37525262 PMCID: PMC10391917 DOI: 10.1186/s42836-023-00192-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 05/03/2023] [Indexed: 08/02/2023] Open
Abstract
With a significant rise in the number of arthroplasty procedures performed worldwide, the increasing revision burden posed by periprosthetic joint infection (PJI) is a matter of growing concern. In spite of various attempts to diagnose PJI, there are no defined tests that can be called a gold standard. Given the importance of early diagnosis in PJI, newer tests and biomarkers have been introduced to improve cumulative diagnostic accuracy. Novel biomarkers like calprotectin, lipocalcin, monocyte-to-lymphocyte ratio, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio and platelet-to-mean platelet volume ratio have demonstrated a potential as diagnostic biomarkers for PJI. This article discusses the relevance of available and newly described diagnostic biomarkers to provide a perspective on the practical applicability in current medical practice, as well as highlights some recent advances in biomarkers for the diagnosis of PJI.
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Affiliation(s)
- Saksham Tripathi
- Institute of Musculoskeletal Disorders and Orthopaedics, Medanta-The Medicity, Gurugram, HR, 122001, India.
| | - Saad Tarabichi
- Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, 19107, USA
| | - Javad Parvizi
- Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, 19107, USA
| | - Ashok Rajgopal
- Institute of Musculoskeletal Disorders and Orthopaedics, Medanta-The Medicity, Gurugram, HR, 122001, India
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Li H, Li R, Erlong N, Chai W, Hao L, Xu C, Fu J, Chen J, Zhu F. It can be unnecessary to combine common synovial fluid analysis and alpha-defensin tests for periprosthetic joint infection diagnosis. BMC Musculoskelet Disord 2023; 24:529. [PMID: 37386394 PMCID: PMC10308702 DOI: 10.1186/s12891-023-06594-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 06/01/2023] [Indexed: 07/01/2023] Open
Abstract
BACKGROUND Periprosthetic joint infection is a serious complication after total joint arthroplasty. Despite that alpha-defensin was used as diagnostic test in the 2018 ICM (international consensus meeting) criteria, its position in the PJI diagnostic pipeline was controversial. Therefore, we performed a retrospective pilot study to identify whether synovial fluid alpha-defensin test was necessary when corresponding synovial fluid analysis (WBC count, PMN% and LE tests) was performed. METHODS Between May 2015 and October 2018, a total of 90 suspected PJI patients who underwent revisions after TJA were included in this study. Based on the 2018 ICM criteria, the interobserver agreements between preoperative diagnostic results and postoperative diagnostic results and the interobserver reliability between preoperative diagnostic results and postoperative diagnostic results with or without synovial fluid alpha-defensin tests were calculated. After that, the ROC analysis, and the direct cost-effectiveness of adding alpha-defensin was performed. RESULTS There were 48,16 and 26 patients in the PJI group, inconclusive group and non-PJI group, respectively. Adding the alpha-defensin tests into 2018 ICM criteria can't change the preoperative diagnostic results, postoperative diagnostic results, and the concordance between preoperative and postoperative diagnostic results. Moreover, the Risk-benefit Ratio is over 90 per changed decision and the direct cost-effectiveness of alpha-defensin was more than $8370($93*90) per case. CONCLUSIONS Alpha-defensin assay exhibit high sensitivity and specificity for PJI detection as a standalone test based on the 2018 ICM criteria. However, the additional order of Alpha-defensin can't offer additional evidence for PJI diagnosis when corresponding synovial fluid analysis was performed (synovial fluid WBC count, PMN% and LE strip tests). EVIDENCE LEVEL Level II, Diagnostic study.
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Affiliation(s)
- Hao Li
- Medical School of Chinese PLA, Beijing, People’s Republic of China
- Department of Orthopedic Surgery, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, People’s Republic of China
- Senior Department of Orthopedics, Fourth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - Rui Li
- Department of Orthopedic Surgery, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, People’s Republic of China
- Senior Department of Orthopedics, Fourth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - Niu Erlong
- Department of Orthopedics, 305 Hospital of PLA, Beijing, People’s Republic of China
| | - Wei Chai
- Department of Orthopedic Surgery, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, People’s Republic of China
- Senior Department of Orthopedics, Fourth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - LiBo Hao
- Department of Orthopedic Surgery, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, People’s Republic of China
- Senior Department of Orthopedics, Fourth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - Chi Xu
- Department of Orthopedic Surgery, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, People’s Republic of China
- Senior Department of Orthopedics, Fourth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - Jun Fu
- Department of Orthopedic Surgery, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, People’s Republic of China
- Senior Department of Orthopedics, Fourth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - Jiying Chen
- Department of Orthopedic Surgery, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, People’s Republic of China
- Senior Department of Orthopedics, Fourth Medical Center of PLA General Hospital, Beijing, People’s Republic of China
| | - Fangzheng Zhu
- Medical School of Chinese PLA, Beijing, People’s Republic of China
- Department of Orthopedic Surgery, The First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, People’s Republic of China
- Department of Orthopaedics, PLA Rocket Force Characteristics Medical Center, Beijing, 100088 China
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13
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Yilmaz MK, Abbaszadeh A, Tarabichi S, Azboy I, Parvizi J. Diagnosis of Periprosthetic Joint Infection: The Utility of Biomarkers in 2023. Antibiotics (Basel) 2023; 12:1054. [PMID: 37370373 DOI: 10.3390/antibiotics12061054] [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: 05/23/2023] [Revised: 06/11/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
Periprosthetic joint infection (PJI) is a rare yet devastating complication following total joint arthroplasty (TJA). Early and accurate diagnosis of PJI is paramount in order to maximize the chances of successful treatment. However, we are yet to identify a single "gold standard" test for the diagnosis of PJI. As a result, the diagnosis of PJI is often challenging. Currently, the 2018 ICM definition of PJI is the only validated diagnostic criteria available. This article will review the importance of serum and synovial biomarkers in the diagnosis of PJI. In addition, it will provide a brief overview of the emerging modalities for the identification of infections in this setting.
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Affiliation(s)
- Mehmet Kursat Yilmaz
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Department of Orthopaedics and Traumatology, School of Medicine, Istanbul Medipol University, Istanbul 34810, Turkey
| | - Ahmad Abbaszadeh
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Saad Tarabichi
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Ibrahim Azboy
- Department of Orthopaedics and Traumatology, School of Medicine, Istanbul Medipol University, Istanbul 34810, Turkey
| | - Javad Parvizi
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, PA 19107, USA
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Jandl NM, Kleiss S, Mussawy H, Beil FT, Hubert J, Rolvien T. Absolute synovial polymorphonuclear neutrophil cell count as a biomarker of periprosthetic joint infection. Bone Joint J 2023; 105-B:373-381. [PMID: 36924172 DOI: 10.1302/0301-620x.105b4.bjj-2022-0628.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
The aim of this study was to evaluate the diagnostic accuracy of the absolute synovial polymorphonuclear neutrophil cell (PMN) count for the diagnosis or exclusion of periprosthetic joint infection (PJI) after total hip (THA) or knee arthroplasty (TKA). In this retrospective cohort study, 147 consecutive patients with acute or chronic complaints following THA and TKA were included. Diagnosis of PJI was established based on the 2018 International Consensus Meeting criteria. A total of 39 patients diagnosed with PJI (32 chronic and seven acute) and 108 patients with aseptic complications were surgically revised. Using receiver operating characteristic curves and calculating the area under the curve (AUC), an optimal synovial cut-off value of 2,000 PMN/µl was determined (AUC 0.978 (95% confidence interval (CI) 0.946 to 1)). Using this cut-off, sensitivity and specificity of absolute synovial PMN count for PJI were 97.4% (95% CI 91.2 to 100) and 93.5% (95% CI 88.9 to 98.1), respectively. Positive and negative predictive value were 84.4% (95% CI 72.7 to 93.9) and 99.0% (95% CI 96.7 to 100), respectively. Exclusion of 20 patients with acute complications improved specificity to 97.9% (95% CI 94.6 to 100). Different cut-off values for THA (< 3,600 PMN/µl) and TKA (< 2,000 PMN/µl) were identified. Absolute synovial PMN count correlated strongly with synovial alpha-defensin (AD) (r = 0.759; p < 0.001). With a positive AD result, no additional PJI could be identified in any case. Absolute synovial PMN count is a widely available, rapid, cost-effective, and accurate marker in PJI diagnostics, whereas synovial AD appears to be a surrogate parameter of absolute synovial PMN count. Despite limitations in the early postoperative phase, wear, and rheumatic diseases in confirming PJI, an absolute synovial PMN count below 2,000/µl is highly suitable for ruling out PJI, with specific cut-off values for THA and TKA.
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Affiliation(s)
- Nico M Jandl
- Department of Trauma and Orthopaedic Surgery, Division of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sebastian Kleiss
- Department of Trauma and Orthopaedic Surgery, Division of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Haider Mussawy
- Department of Trauma and Orthopaedic Surgery, Division of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Frank T Beil
- Department of Trauma and Orthopaedic Surgery, Division of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan Hubert
- Department of Trauma and Orthopaedic Surgery, Division of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tim Rolvien
- Department of Trauma and Orthopaedic Surgery, Division of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Patel R, Tsalik EL, Evans S, Fowler VG, Doernberg SB. Clinically Adjudicated Reference Standards for Evaluation of Infectious Diseases Diagnostics. Clin Infect Dis 2023; 76:938-943. [PMID: 36262037 PMCID: PMC10226744 DOI: 10.1093/cid/ciac829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/06/2022] [Accepted: 10/13/2022] [Indexed: 11/13/2022] Open
Abstract
Lack of a gold standard can present a challenge for evaluation of diagnostic test accuracy of some infectious diseases tests, particularly when the test's accuracy potentially exceeds that of its predecessors. This approach may measure agreement with an imperfect reference, rather than correctness, because the right answer is unknown. Solutions consist of multitest comparators, including those that involve a test under evaluation if multiple new tests are being evaluated together, using latent class modeling, and clinically adjudicated reference standards. Clinically adjudicated reference standards may be considered as comparator methods when no predefined test or composite of tests is sufficiently accurate; they emulate clinical practice in that multiple data pieces are clinically assessed together.
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Affiliation(s)
- Robin Patel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Ephraim L Tsalik
- Emergency Medicine Service, Durham VA Health Care System, Durham, North Carolina, USA
- Division of Infectious Diseases, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
- Danaher Diagnostics, Washington, District of Columbia, USA
| | - Scott Evans
- Biostatistics Center and the Department of Biostatistics and Bioinformatics, George Washington Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA
| | - Vance G Fowler
- Division of Infectious Diseases, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
- Duke Clinical Research Institute, Durham, North Carolina, USA
| | - Sarah B Doernberg
- Division of Infectious Diseases, Department of Medicine, University of California, San Francisco, California, USA
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Tarabichi S, Chen AF, Higuera CA, Parvizi J, Polkowski GG. 2022 American Association of Hip and Knee Surgeons Symposium: Periprosthetic Joint Infection. J Arthroplasty 2023:S0883-5403(23)00065-7. [PMID: 36738863 DOI: 10.1016/j.arth.2023.01.045] [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: 12/01/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 02/06/2023] Open
Abstract
Periprosthetic joint infection (PJI) is the leading cause of failure in patients undergoing total joint arthroplasty. This article is a brief summary of a symposium on PJI that was presented at the annual AAHKS meeting. It will provide an overview of current technqiues in the prevention, diagnosis, and management of PJI. It will also highlight emerging technologies in this setting.
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Affiliation(s)
- Saad Tarabichi
- Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Antonia F Chen
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Carlos A Higuera
- Levitetz Department of Orthopaedic Surgery, Cleveland Clinic Florida, Weston, Florida
| | - Javad Parvizi
- Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Gregory G Polkowski
- Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
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Fisher CR, Patel R. Profiling the Immune Response to Periprosthetic Joint Infection and Non-Infectious Arthroplasty Failure. Antibiotics (Basel) 2023; 12:296. [PMID: 36830206 PMCID: PMC9951934 DOI: 10.3390/antibiotics12020296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/20/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Arthroplasty failure is a major complication of joint replacement surgery. It can be caused by periprosthetic joint infection (PJI) or non-infectious etiologies, and often requires surgical intervention and (in select scenarios) resection and reimplantation of implanted devices. Fast and accurate diagnosis of PJI and non-infectious arthroplasty failure (NIAF) is critical to direct medical and surgical treatment; differentiation of PJI from NIAF may, however, be unclear in some cases. Traditional culture, nucleic acid amplification tests, metagenomic, and metatranscriptomic techniques for microbial detection have had success in differentiating the two entities, although microbiologically negative apparent PJI remains a challenge. Single host biomarkers or, alternatively, more advanced immune response profiling-based approaches may be applied to differentiate PJI from NIAF, overcoming limitations of microbial-based detection methods and possibly, especially with newer approaches, augmenting them. In this review, current approaches to arthroplasty failure diagnosis are briefly overviewed, followed by a review of host-based approaches for differentiation of PJI from NIAF, including exciting futuristic combinational multi-omics methodologies that may both detect pathogens and assess biological responses, illuminating causes of arthroplasty failure.
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Affiliation(s)
- Cody R. Fisher
- Mayo Clinic Graduate School of Biomedical Sciences, Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Robin Patel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
- Division of Public Health, Infectious Diseases, and Occupational Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
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Cai Y, Liang J, Chen X, Zhang G, Jing Z, Zhang R, Lv L, Zhang W, Dang X. Synovial fluid neutrophil extracellular traps could improve the diagnosis of periprosthetic joint infection. Bone Joint Res 2023; 12:113-120. [PMID: 36718647 PMCID: PMC9950667 DOI: 10.1302/2046-3758.122.bjr-2022-0391.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
AIMS This study aimed to explore the diagnostic value of synovial fluid neutrophil extracellular traps (SF-NETs) in periprosthetic joint infection (PJI) diagnosis, and compare it with that of microbial culture, serum ESR and CRP, synovial white blood cell (WBC) count, and polymorphonuclear neutrophil percentage (PMN%). METHODS In a single health centre, patients with suspected PJI were enrolled from January 2013 to December 2021. The inclusion criteria were: 1) patients who were suspected to have PJI; 2) patients with complete medical records; and 3) patients from whom sufficient synovial fluid was obtained for microbial culture and NET test. Patients who received revision surgeries due to aseptic failure (AF) were selected as controls. Synovial fluid was collected for microbial culture and SF-WBC, SF-PNM%, and SF-NET detection. The receiver operating characteristic curve (ROC) of synovial NET, WBC, PMN%, and area under the curve (AUC) were obtained; the diagnostic efficacies of these diagnostic indexes were calculated and compared. RESULTS The levels of SF-NETs in the PJI group were significantly higher than those of the AF group. The AUC of SF-NET was 0.971 (95% confidence interval (CI) 0.903 to 0.996), the sensitivity was 93.48% (95% CI 82.10% to 98.63%), the specificity was 96.43% (95% CI 81.65% to 99.91%), the accuracy was 94.60% (95% CI 86.73% to 98.50%), the positive predictive value was 97.73%, and the negative predictive value was 90%. Further analysis showed that SF-NET could improve the diagnosis of culture-negative PJI, patients with PJI who received antibiotic treatment preoperatively, and fungal PJI. CONCLUSION SF-NET is a novel and ideal synovial fluid biomarker for PJI diagnosis, which could improve PJI diagnosis greatly.Cite this article: Bone Joint Res 2023;12(2):113-120.
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Affiliation(s)
- Yuanqing Cai
- Department of Orthopaedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China,Department of Orthopaedics, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Jialin Liang
- Department of Orthopaedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China
| | - Xiaoqing Chen
- Department of Orthopaedics, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, China
| | - Guangyang Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China
| | - Zhaopu Jing
- Department of Orthopaedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China
| | - Rupeng Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China
| | - Leifeng Lv
- Department of Orthopaedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China
| | - Wenming Zhang
- Department of Orthopaedics, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Xiaoqian Dang
- Department of Orthopaedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China, Xiaoqian Dang. E-mail:
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Affiliation(s)
- Robin Patel
- From the Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, and the Division of Public Health, Infectious Diseases, and Occupational Medicine, Department of Medicine, Mayo Clinic, Rochester, MN
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Diniz SE, Ribau A, Vinha A, Oliveira J, Abreu M, Sousa R. Simple and inexpensive synovial fluid biomarkers for the diagnosis of prosthetic joint infection according to the new EBJIS definition. J Bone Jt Infect 2023; 8:109-118. [PMID: 37032977 PMCID: PMC10077577 DOI: 10.5194/jbji-8-109-2023] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 03/10/2023] [Indexed: 04/11/2023] Open
Abstract
Introduction: diagnosis of periprosthetic joint infection (PJI) is challenging, as no single test has absolute accuracy. The purpose of this study was to assess the utility of different simple synovial biomarkers in the diagnosis of PJI as defined by the European Bone and Joint Infection Society (EBJIS). Methods: we retrospectively identified all patients undergoing revision hip or knee arthroplasty from 2013 to 2019 on our prospectively maintained database. Only patients with minimum required infection diagnostic workup were included in the study. Patients with comorbidities that may influence the accuracy of synovial biomarkers were excluded. Receiver operator characteristic (ROC) curves were utilised to assess the diagnostic utility of synovial fluid white blood cell (WBC) count, polymorphonuclear leukocyte percentage (PMN %), C-reactive protein (CRP), adenosine deaminase (ADA), and alpha-2-microglobulin (A2M). Results: in total, 102 patients met the inclusion criteria. Of these, 58 were classified as infection unlikely, 8 as infection likely, and 36 as infection confirmed. Synovial WBC count (area under the curve (AUC) 0.94) demonstrated the best utility for the diagnosis of PJI, followed by PMN % (AUC 0.91), synovial CRP (AUC 0.90), ADA (AUC 0.82), and A2M (AUC 0.76). We found added value in the combined interpretation of different biomarkers. We calculated high sensitivity and negative predictive value if at least two of them are negative and high specificity and positive predictive value if at least two are elevated. Conclusion: current results show that synovial fluid investigation is a useful tool for the diagnosis of PJI, and the combined interpretation of simple and inexpensive biomarkers demonstrated improved diagnostic accuracy.
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Affiliation(s)
- Sara Elisa Diniz
- Orthopedics Department, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Ana Ribau
- Orthopedics Department, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - André Vinha
- Orthopedics Department, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - José Carlos Oliveira
- Department of Laboratory Pathology, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Miguel Araújo Abreu
- Department of Infectious Diseases, Centro Hospitalar Universitário de Santo António, Porto, Portugal
- part of the Porto Bone and Joint Infection Group (GRIP), Porto, Portugal
| | - Ricardo Sousa
- Orthopedics Department, Centro Hospitalar Universitário de Santo António, Porto, Portugal
- part of the Porto Bone and Joint Infection Group (GRIP), Porto, Portugal
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Clinical Use of a 16S Ribosomal RNA Gene-Based Sanger and/or Next Generation Sequencing Assay to Test Preoperative Synovial Fluid for Periprosthetic Joint Infection Diagnosis. mBio 2022; 13:e0132222. [PMID: 36354331 PMCID: PMC9765659 DOI: 10.1128/mbio.01322-22] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Preoperative pathogen identification in patients with periprosthetic joint infection (PJI) is typically limited to synovial fluid culture. Whether sequencing-based approaches are of potential use in identification of pathogens in PJI, and if so which approach is ideal, is incompletely defined. The objective of the study was to analyze the accuracy of a 16S rRNA (rRNA) gene-based PCR followed by Sanger sequencing and/or targeted metagenomic sequencing approach (tMGS) performed on synovial fluid for PJI diagnosis. A retrospective study was conducted, analyzing synovial fluids tested between August 2020 and May 2021 at a single center. Subjects with hip, knee, shoulder, and elbow arthroplasties who had synovial fluid aspirated and clinically subjected to sequence-based testing and conventional culture were studied. A total of 154 subjects were included in the study; 118 had noninfectious arthroplasty failure (NIAF), while 36 had PJI. Clinical sensitivity and specificity for diagnosis of PJI were 69% and 100%, respectively, for the sequencing-based approach and 72% and 100%, respectively, for conventional culture (P = 0.74). The combination of both tests was more sensitive (83%) than culture alone (P = 0.04). Results of sequencing-based testing led to changes in treatment in four of 36 (11%) PJI subjects. Microbial identification was achieved using Sanger and next generation sequencing in 19 and 6 subjects, respectively. When combined with culture, the described 16S rRNA gene sequencing-based approach increased sensitivity compared to culture alone, suggesting its potential use in the diagnosis of PJI when synovial fluid culture is negative. IMPORTANCE Periprosthetic joint infection (PJI) is a dreadful complication of joint replacement. Noninvasive identification of infectious pathogens has been traditionnally limited to culture-based testing of synovial fluid which has poor sensitivity. Sanger and Next-generation sequencing (NGS) may be used for synovial fluid testing in PJI, but experience in routine practice is sparse. We used a targeted metagenomic sequencing approach for routine testing of synovial fluid involving NGS when Sanger sequencing had failed or was likely to fail. The objective of this study was to analyze the approach's performance for diagnosis of PJI in comparison to culture for testing synovial fluid. Overall, the sequencing-based approach was not superior to culture for diagnosis of PJI, but yielded positive results in some culture-negative samples.
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Tang H, Xu J, Yuan W, Wang Y, Yue B, Qu X. Reliable Diagnostic Tests and Thresholds for Preoperative Diagnosis of Non-Inflammatory Arthritis Periprosthetic Joint Infection: A Meta-analysis and Systematic Review. Orthop Surg 2022; 14:2822-2836. [PMID: 36181336 PMCID: PMC9627080 DOI: 10.1111/os.13500] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 08/19/2022] [Accepted: 08/23/2022] [Indexed: 02/06/2023] Open
Abstract
Objective The current diagnostic criteria for periprosthetic joint infection (PJI) are diverse and controversial, leading to delayed diagnosis. This study aimed to evaluate and unify their diagnostic accuracy and the threshold selection of serum and synovial routine tests for PJI at an early stage. Methods We searched the MEDLINE and Embase databases for retrospective or prospective studies which reported preoperative‐available assays (serum, synovial, or culture tests) for the diagnosis of chronic PJI among inflammatory arthritis (IA) or non‐IA populations from January 1, 2000 to June 30, 2022. Threshold effective analysis was performed on synovial polymorphonuclear neutrophils (PMN%), synovial white blood cell (WBC), serum C‐reactive protein (CRP), and erythrocyte sedimentation rate (ESR) to find the relevant cut‐offs. Results Two hundred and sixteen studies and information from 45,316 individuals were included in the final analysis. Synovial laboratory‐based α‐defensin and calprotectin had the best comprehensive sensitivity (0.91 [0.86–0.94], 0.95 [0.88–0.98]) and specificity (0.96 [0.94‐0.97], 0.95 [0.89–0.98]) values. According to the threshold effect analysis, the recommended cut‐offs are 70% (sensitivity 0.89 [0.85–0.92], specificity 0.90 [0.87–0.93]), 4100/μL (sensitivity 0.90 [0.87–0.93], specificity 0.97 [0.93–0.98]), 13.5 mg/L (sensitivity 0.84 [0.78–0.89], specificity 0.83 [0.73–0.89]), and 30 mm/h (sensitivity 0.79 [0.74–0.83], specificity 0.78 [0.72–0.83]) for synovial PMN%, synovial WBC, serum CRP, and ESR, respectively, and tests seem to be more reliable among non‐IA patients. Conclusions The laboratory‐based synovial α‐defensin and synovial calprotectin are the two best independent preoperative diagnostic tests for PJI. A cut off of 70% for synovial PMN% and tighter cut‐offs for synovial WBC and serum CRP could have a better diagnostic accuracy for non‐IA patients with chronic PJI.
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Affiliation(s)
- Haozheng Tang
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jialian Xu
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei'en Yuan
- Ministry of Education Engineering Research Center of Cell & Therapeutic Antibody, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - You Wang
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bing Yue
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinhua Qu
- Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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