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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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Mazzella FM, Zhang Y, Bauer TW. Update on the role of pathology and laboratory medicine in diagnosing periprosthetic infection. Hum Pathol 2024; 147:5-14. [PMID: 38280657 DOI: 10.1016/j.humpath.2024.01.009] [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: 12/29/2023] [Accepted: 01/22/2024] [Indexed: 01/29/2024]
Abstract
Technological and implant design advances have helped reduce the frequency of aseptic total joint arthroplasty failure, but periprosthetic joint infections (PJI) remain a clinical important problem with high patient morbidity. Misinterpreting PJI as aseptic mechanical loosening commonly leads to unsatisfactory revision arthroplasty, persistent infection, and poor long-term results. While there is no single "gold standard" diagnostic test for PJI, recent collaborative efforts by Orthopaedic and Infectious Disease Societies have developed algorithms for diagnosing PJI. However, the efficacy of individual tests as well as diagnostic thresholds are controversial. We review the recommended thresholds for commonly used screening tests as well as tissue histopathology and confirmatory tests to diagnose periprosthetic infection. We also update lesser-known laboratory tests, and we briefly summarize rapidly evolving molecular tests to diagnose periprosthetic infection. Pathologists hold a critical role in assisting with PJI diagnosis, maintaining laboratory test quality and interpreting test results. Collaboration between clinicians and pathologists is essential to provide optimal patient care and reduce the burden of PJI.
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Affiliation(s)
- Fermina M Mazzella
- Department of Pathology and Laboratory Medicine, Hospital for Special Surgery, USA
| | - Yaxia Zhang
- Department of Pathology and Laboratory Medicine, Hospital for Sprecial Surgery, Weill Cornell College of Medicine, USA
| | - Thomas W Bauer
- Department of Pathology and Laboratory Medicine, Hospital for Special Surgery, Weill Cornell Medical College, 535 East 70th St, New York, NY, 10021, USA.
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Rako KM, Barbera JP, Sacks BL, Adler EM, Chen DD, Moucha CS, Hayden BL. Adverse Local Tissue Reaction Secondary to Corrosion at Multiple Junctions in a Modular, Segmental, Distal Femoral Replacement. Arthroplast Today 2023; 24:101256. [PMID: 38023655 PMCID: PMC10663760 DOI: 10.1016/j.artd.2023.101256] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 09/19/2023] [Accepted: 09/23/2023] [Indexed: 12/01/2023] Open
Abstract
While adverse local tissue reactions are well described in the total hip arthroplasty literature, there have only been case reports and case series in the total knee arthroplasty literature. There have been no cases described in the setting of a distal femoral replacement. In this case, we describe a 69-year-old female with a complex history of left knee revision arthroplasty with a distal femoral and proximal tibial replacement who presented with left knee pain and was found to have extensive adverse local tissue reaction with corrosion at the femoral stem-extension piece junction and the extension piece-distal femoral component junction. The femoral taper was then manually cleaned and modular components replaced. Corrosion at the stem-distal femoral component junction can result in adverse local tissue reaction in patients with distal femoral replacements. It is important to consider this diagnosis when evaluating patients with knee pain following distal femoral replacement.
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Affiliation(s)
- Kyle M. Rako
- Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Joseph P. Barbera
- Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Brittany L. Sacks
- Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Edward M. Adler
- Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Darwin D. Chen
- Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Calin S. Moucha
- Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Brett L. Hayden
- Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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4
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Fink B, Hoyka M, Blersch B, Baum H, Sax FH. Graphic type differentiation of cell count data for diagnosis of early and late periprosthetic joint infection: A new method. Technol Health Care 2023:THC231006. [PMID: 37980584 DOI: 10.3233/thc-231006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
BACKGROUND Graphic type differentiation of cell count data of synovial aspirates is a new method for the diagnosis of early and late periprosthetic joint infection. OBJECTIVE The aim of the study was to analyse if the same 6 LMNE-types can be differentiated in the new Yumizen H500 cell counter as it was the case for the old cell counter ABX Pentra XL 80 of previous publications, to verify if the erythrocyte and thrombocyte curves of the new device give additional information and to calculate the difference of cell count in LMNE-type I and III (with abrasion) in the cell counter and in the manual counting chamber (Neubauer improved). METHODS 450 aspirates of 152 total hip arthroplasties and 298 knee arthroplasties obtained for the diagnosis of periprosthetic joint infection were analysed with the Yumizen H500. RESULTS All LMNE-matrices of the 450 aspirates could assigned to one of the six LMNE-types. There were 76 LMNE-type I, 72 LMNE-type II, 14 LMNE-type III, 241 LMNE-type IV, 36 LMNE-type V and 12 LMNE-type VI. The erythrocyte and thrombocyte distribution curves were very helpful for differentiation of hematoma and infection. The cell count in the manual counting procedure was lower than in the cell counter: for the LMNE-type I (abrasion type) the median of the difference was 925/μL (median) and for the LMNE-type III (combined type of infection and abrasion) 3570/μL (median). CONCLUSION The described graphic type differentiation is a new and helpful method for differentiation of hematoma and early PJI as well as abrasion and late PJI.
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Affiliation(s)
- Bernd Fink
- Department for Joint Replacement, Rheumatoid and General Orthopaedics, Orthopaedic Clinic Markgröningen, Markgröningen, Germany
- Orthopaedic Department, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Marius Hoyka
- Department for Joint Replacement, Rheumatoid and General Orthopaedics, Orthopaedic Clinic Markgröningen, Markgröningen, Germany
| | - Benedikt Blersch
- Department for Joint Replacement, Rheumatoid and General Orthopaedics, Orthopaedic Clinic Markgröningen, Markgröningen, Germany
| | - Hannsjörg Baum
- Institute for Laboratory Medicine and Transfusion Medicine, RKH Regionale Kliniken Holding und Services GmbH, Ludwigsburg, Germany
| | - Florian Hubert Sax
- Department for Joint Replacement, Rheumatoid and General Orthopaedics, Orthopaedic Clinic Markgröningen, Markgröningen, Germany
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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:antibiotics12020296. [PMID: 36830206 PMCID: PMC9951934 DOI: 10.3390/antibiotics12020296] [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: 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
- Correspondence:
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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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Schwartz Y, Sherwood DJ, Kamara E. Atypical Presentation of Periprosthetic Joint Infection With Pseudotumor With a Modular-Neck Stem Implant. Cureus 2022; 14:e28862. [PMID: 36225483 PMCID: PMC9537095 DOI: 10.7759/cureus.28862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/06/2022] [Indexed: 11/25/2022] Open
Abstract
A 64-year-old male with a recalled modular-neck stem implant presented with a soft tissue mass in the lateral thigh. Preoperative testing revealed no signs of infection by the 2018 periprosthetic joint infection criteria. MRI revealed a large soft tissue mass around the implant consistent with a pseudotumor, and we performed revision surgery of the femoral component for trunnionosis. One intraoperative culture was positive for infection, and the patient was placed on antibiotics. Six weeks following revision surgery of the femoral component, the patient presented with acute drainage and was diagnosed with an acute on chronic periprosthetic joint infection and underwent explantation of the femoral and acetabular components with the placement of an antibiotic spacer. Cultures revealed identical bacteria from the index procedure. Given the clinical course, this case likely represents adverse local tissue reaction with an atypical presentation of periprosthetic joint infection. This is the first case presentation of an adverse local tissue reaction and superimposed periprosthetic joint infection with normal infection workup, representing an important consideration when differentiating between pseudotumor and periprosthetic joint infection in modular-neck femoral stem implants.
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8
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Duck H, Tanner S, Zillmer D, Osmon D, Perry K. Value of ultrasound-guided aspiration of hip arthroplasties performed in an orthopedic clinic by orthopedic surgeons. J Bone Jt Infect 2021; 6:393-403. [PMID: 34804774 PMCID: PMC8600464 DOI: 10.5194/jbji-6-393-2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/18/2021] [Indexed: 12/30/2022] Open
Abstract
Background: Total joint arthroplasties continue to increase as do periprosthetic joint infections (PJIs). Ultrasound-guided aspiration can yield useful synovial fluid for analysis while avoiding radiation exposure. This study presents a high-yield, ultrasound-guided technique with analysis of aspiration results. Methods: All consecutive ultrasound-guided aspirations of hip arthroplasties performed from May 2016 through to April 2019 were retrospectively reviewed. Patient demographic information, component specifics, presence of draining sinus, and inflammatory markers were recorded. Results of aspiration including volume, appearance, lavage use, synovial fluid differential leukocyte count, synovial neutrophil percent, and culture results were recorded. Surgical results, specimen cultures, and surgeon description of purulence were recorded. Aspiration results were compared to the surgical specimen results in all patients who underwent reoperations. Results: Review of 349 hip aspirations demonstrated accuracy of 87 %, sensitivity of 83 %, specificity of 89 %, positive predictive value of 79 %, and negative predictive value 91 %. Surgical and aspiration cultures matched in 81 % of cases. Bloody aspirates and aspirates obtained after lavage had less accuracy at 69 % and 60 %, respectively. Specificity was 100 % for cultures obtained with lavage and 91 % for bloody aspirates. Synovial leukocyte count and neutrophil percentage was obtained in 85 % of aspirations, and cultures were obtained in 98 % of aspirates. Contamination rate was 2 %. Conclusion: Ultrasound-guided aspirations aid in the diagnosis of PJI. The use of lavage to obtain fluid is helpful when aspiration cultures are positive. Bloody aspirates are less accurate but have high specificity. A low contamination rate and 88 % accuracy results with this meticulous technique.
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Affiliation(s)
- Holly Duck
- Department of Orthopedic Surgery, Mayo Clinic, Rochester MN, USA
| | - Suzanne Tanner
- Department of Orthopedic Surgery, Mayo Clinic, Rochester MN, USA
| | - Debra Zillmer
- Department of Orthopedic Surgery, Mayo Clinic, Rochester MN, USA
| | - Douglas Osmon
- Department of Infectious Diseases, Mayo Clinic, Rochester MN, USA
| | - Kevin Perry
- Department of Orthopedic Surgery, Mayo Clinic, Rochester MN, USA
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Abstract
Periprosthetic joint infection (PJI) is one of the most dreadful complications after THA and TKA. Though prevention is of utmost importance in PJI management, the last decade has seen many remarkable developments in PJI diagnosis, including the introduction of several standardized PJI diagnostic definitions and biomarkers. Depending on the specific clinical situation, a myriad of treatment options for PJI are offered. Our review aims to summarize the pertinent information on PJI diagnosis and synthesize literature on the different treatment methods currently used in clinical practice. One of the most accepted PJI diagnostic definitions was developed by the Musculoskeletal Infection Society (MSIS) in 2011, later modified in the 2013 International Consensus Meeting (ICM). After promising results from studies, alpha-defensins and D-dimer were recently incorporated into the 2018 ICM PJI definition. The management choices for PJI include irrigation and debridement (DAIR), one-stage exchange arthroplasty, or two-stage exchange arthroplasty, to name a few. While two-stage revision has traditionally been the treatment of choice in the United States, there has been a growing body of evidence framing one-stage revision as a comparable choice. One-stage revision should be offered in patients meeting strict selection criteria: no sinus tract, proper soft tissue available for wound closure, appropriate bone stock, a favorable identifiable organism with encouraging antibiotic sensitivities (for cement and oral suppression later), and robust immunological status. DAIR can be considered in case of early infections with sensitive infecting organisms. Patients with multiple unsuccessful revisions or those who refuse further surgical intervention for PJI can be offered antibiotic suppression. If nothing seems to work, salvage procedures (resection arthroplasty and arthrodesis) are available as a last resort. Further research is encouraged to improve on diagnostic capabilities and develop evidence on the best treatment of choice for PJI.
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Affiliation(s)
- Tejbir S. Pannu
- Levitetz Department of Orthopaedic Surgery, Cleveland Clinic Florida 2950 Cleveland Clinic Blvd. Weston 33331 FL USA
| | - Jesus M. Villa
- Levitetz Department of Orthopaedic Surgery, Cleveland Clinic Florida 2950 Cleveland Clinic Blvd. Weston 33331 FL USA
| | - Carlos A. Higuera
- Levitetz Department of Orthopaedic Surgery, Cleveland Clinic Florida 2950 Cleveland Clinic Blvd. Weston 33331 FL USA
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Pagliaccetti J, Pannu TS, Villa JM, Piuzzi NS, Higuera CA. Variability and Interpretation of Synovial Cell Count and Differential: A Perspective in Hip and Knee Arthroplasty. Orthopedics 2021; 44:e320-e325. [PMID: 34039220 DOI: 10.3928/01477447-20210508-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Multiple threshold values have been proposed for synovial leukocyte count (white blood cell count) and synovial neutrophil percentage (percent polymorphonuclear neutrophils) in the diagnosis of periprosthetic joint infection (PJI). The objective of this study was to elucidate the variability of these criteria under diverse patient/surgical settings. Hip PJIs yield higher synovial white blood cell counts and percent polymorphonuclear neutrophils than knee PJIs. Periprosthetic joint infection of failed unicompartmental knee arthroplasty produces a higher white blood cell count than that of failed total knee arthroplasty. Synovial white blood cell count and percent polymorpho-nuclear neutrophils PJI thresholds also vary in patients with antibiotic cement spacers and depend on the timing from primary arthroplasty (<6 weeks vs >6 weeks). Similarly, test results should be carefully interpreted for patients with comorbidities so that PJI is not missed or falsely identified. [Orthopedics. 2021;44(3):e320-e325.].
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11
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Kubacki GW, Gilbert JL. The effect of hypochlorous acid on the tribocorrosion of CoCrMo/Ti-6Al-4V bearing couples. J Biomed Mater Res A 2021; 109:2536-2544. [PMID: 34171172 DOI: 10.1002/jbm.a.37248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/16/2021] [Accepted: 06/09/2021] [Indexed: 11/07/2022]
Abstract
Mechanically assisted corrosion (MAC) of metallic orthopedic alloys is a consequence of the use of modular devices where opposing metal surfaces are tightly mated and loaded at the taper junction. MAC processes are affected by material surface characteristics and local solution chemistry. During inflammation, active immune cells may generate reactive oxygen species (such as hypochlorous acid [HOCl]) adjacent to surfaces undergoing micromotion, which may affect the tribocorrosion behavior of an implanted device. This study investigated the fretting current response of CoCrMo/Ti-6Al-4 V couples in a pin-on-disk apparatus utilizing HOCl solutions as a proxy for a severe inflammatory environment. Testing in 1 and 5 mM HOCl solutions were shown to generate a threefold and fivefold increase (p < 0.01), respectively, in fretting currents over pH 7.4 phosphate-buffered saline control conditions. Fretting currents were shown to be dependent on the energy dissipated during fretting and the concentration of HOCl where the currents within a single HOCl concentration were linearly dependent of energy dissipated, but different HOCl levels shifted (increased and then decreased) fretting currents with concentration. Fretting currents, governed by regrowth of an abraded oxide film, were affected by the oxidative power of the solution, which caused positive shifts in open circuit potential and likely resulted in a thicker oxide for 1 mM and 5 mM and fell with 30 mM. Small amounts of HOCl release within a joint may result in increased release of tribocorrosion products such as oxide particles.
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Affiliation(s)
- Gregory W Kubacki
- Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, Alabama, USA
- Department of Bioengineering, Clemson University, Clemson-Medical University of South Carolina Bioengineering Program, Charleston, South Carolina, USA
- Department of Biomedical and Chemical Engineering, Syracuse Biomaterials Institute, Syracuse University, Syracuse, New York, USA
| | - Jeremy L Gilbert
- Department of Bioengineering, Clemson University, Clemson-Medical University of South Carolina Bioengineering Program, Charleston, South Carolina, USA
- Department of Biomedical and Chemical Engineering, Syracuse Biomaterials Institute, Syracuse University, Syracuse, New York, USA
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12
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The Graphical Representation of Cell Count Representation: A New Procedure for the Diagnosis of Periprosthetic Joint Infections. Antibiotics (Basel) 2021; 10:antibiotics10040346. [PMID: 33804988 PMCID: PMC8063952 DOI: 10.3390/antibiotics10040346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 11/19/2022] Open
Abstract
Aim: This study was designed to answer the question whether a graphical representation increase the diagnostic value of automated leucocyte counting of the synovial fluid in the diagnosis of periprosthetic joint infections (PJI). Material and methods: Synovial aspirates from 322 patients (162 women, 160 men) with revisions of 192 total knee and 130 hip arthroplasties were analysed with microbiological cultivation, determination of cell counts and assay of the biomarker alpha-defensin (170 cases). In addition, microbiological and histological analysis of the periprosthetic tissue obtained during the revision surgery was carried out using the ICM classification and the histological classification of Morawietz and Krenn. The synovial aspirates were additionally analysed to produce dot plot representations (LMNE matrices) of the cells and particles in the aspirates using the hematology analyser ABX Pentra XL 80. Results: 112 patients (34.8%) had an infection according to the ICM criteria. When analysing the graphical LMNE matrices from synovia cell counting, four types could be differentiated: the type “wear particles” (I) in 28.3%, the type “infection” (II) in 24.8%, the “combined” type (III) in 15.5% and “indeterminate” type (IV) in 31.4%. There was a significant correlation between the graphical LMNE-types and the histological types of Morawietz and Krenn (p < 0.001 and Cramer test V value of 0.529). The addition of the LMNE-Matrix assessment increased the diagnostic value of the cell count and the cut-off value of the WBC count could be set lower by adding the LMNE-Matrix to the diagnostic procedure. Conclusion: The graphical representation of the cell count analysis of synovial aspirates is a new and helpful method for differentiating between real periprosthetic infections with an increased leukocyte count and false positive data resulting from wear particles. This new approach helps to increase the diagnostic value of cell count analysis in the diagnosis of PJI.
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13
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Kwon YM, Mahajan J, Tirumala V, Oganesyan R, Yeo I, Klemt C. Sensitivity and Specificity of Serum and Synovial Fluid Markers in Diagnosis of Infection in Head-Neck Taper Corrosion of Metal-On-Polyethylene Total Hip Arthroplasty. J Arthroplasty 2020; 35:3737-3742. [PMID: 32665158 DOI: 10.1016/j.arth.2020.06.058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/15/2020] [Accepted: 06/19/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND The accurate diagnosis of periprosthetic joint infection (PJI) in the setting of adverse local tissue reactions in patients with metal-on-polyethylene (MoP) total hip arthroplasty (THA) secondary to head-neck taper junction corrosion is challenging as it frequently has the appearance of purulence. The aim of this study is to evaluate the utility of erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and synovial fluid markers in diagnosing PJI in failed MoP THA due to head-neck taper corrosion. METHODS A total of 89 consecutive patients with MoP THA with head-neck taper corrosion in 2 groups was evaluated: (1) infection group (n = 11) and (2) noninfection group (n = 78). All patients had highly crossed polyethylene with cobalt chromium femoral heads and had preoperative synovial fluid aspiration. In addition, serum cobalt and chromium levels were analyzed. RESULTS The optimal cutoff value for synovial white blood cell was 2144 with 93% sensitivity and 84% specificity. Neutrophil count optimal cutoff value was 82% with 93% sensitivity and 82% specificity. Receiver operating characteristic analysis of ESR and CRP determined optimal cutoff at 57 mm/h and 35 mg/L with 57% sensitivity and 94% specificity and 93% sensitivity and 76% specificity, respectively. There were no significant differences in metal ion levels between the infected and noninfected groups. CONCLUSION The results of this study suggest that ESR and CRP are useful in excluding PJI, whereas both synovial white blood cell count and neutrophil percentage in hip aspirate are useful markers for diagnosing infection in MoP THA patients with head-neck taper corrosion associated adverse local tissue reaction.
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Affiliation(s)
- Young-Min Kwon
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - John Mahajan
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Venkatsaiakhil Tirumala
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Ruben Oganesyan
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Ingwon Yeo
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Christian Klemt
- Bioengineering Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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14
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Pearson LN, Schmidt RL, Cahoon K, Pelt CE. Reliability of Total Nucleated Cell Counts in the Setting of Hip Arthroplasty. J Appl Lab Med 2020; 6:679-687. [PMID: 33179049 DOI: 10.1093/jalm/jfaa183] [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: 05/20/2020] [Accepted: 09/16/2020] [Indexed: 11/14/2022]
Abstract
BACKGROUND Total nucleated cell (TNC) count and differential are used to classify joint effusions as inflammatory or noninflammatory. Further diagnostic evaluation and management is contingent on this classification. TNC count can be measured by automated analyzers or by manual assessment using a hemocytometer. Studies have raised concerns regarding the accuracy of TNC counts measured by automated instruments, particularly in the setting of joint arthroplasty. The objective of this study was to determine whether metallosis, a complication of total hip arthroplasty in which metal debris accumulates in periprosthetic tissues and synovial fluid, is associated with inaccurate TNC counts in synovial fluid. METHODS We compared the accuracy of cell counts measured by the Sysmex XN-1000 and Beckman Coulter Iris iQ200 with the gold standard of manual assessment using a hemocytometer in synovial fluid from patients with suspected metallosis and in fluid obtained from controls from patients with native joints and a history of arthroplasty for other indications. RESULTS TNC counts produced by automated analyzers were associated with increased levels of discordance (relative to manual counts) in patients with metallosis. Metallosis was not associated with increased levels of discordance for RBC counts or WBC differentials. The Sysmex XN flagged all but 1 metallosis sample for manual verification of the results. CONCLUSIONS Automated methods are generally reliable for analysis of synovial fluid. TNC counts can be inaccurate in the context of metallosis following total hip arthroplasty. Laboratories should correlate automated cell counts with a microscopic assessment of the specimen, as recommended by instrument manufacturers.
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Kore L, Bates T, Mills G, Lybeck D. Oxidized Zirconium Total Knee Arthroplasty Implant Failure in a Patient With Knee Instability. Arthroplast Today 2020; 6:552-555. [PMID: 32775586 PMCID: PMC7397700 DOI: 10.1016/j.artd.2020.06.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/21/2020] [Accepted: 06/29/2020] [Indexed: 11/03/2022] Open
Abstract
Oxidized zirconium was introduced as an alternative bearing surface to decrease polyethylene wear and reduce aseptic mechanical failure of hip and knee arthroplasties. Oxidized zirconium combines the strength of a metal with wear properties of ceramic, proposing increased survivorship of implant components, and possible decreased rate of revision. Despite a harder surface than cobalt-chromium, the substrate of zirconium is a softer metal. Although uncommon, prior reports have described accelerated wear and severe metallosis after femoral head dislocation in oxidized zirconium total hip arthroplasty; however, this has not been described in total knee arthroplasty. We report a case of an oxidized zirconium total knee arthroplasty failure in a patient with knee instability. This is the first report of catastrophic failure of an oxidized zirconium total knee arthroplasty implant.
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Affiliation(s)
- Lydia Kore
- Department of Orthopaedic Surgery, Brooke Army Medical Center, Fort Sam Houston, TX
| | - Taylor Bates
- Department of Orthopaedic Surgery, Brooke Army Medical Center, Fort Sam Houston, TX
| | - Gavin Mills
- Department of Orthopaedic Surgery, Brooke Army Medical Center, Fort Sam Houston, TX
| | - Dustin Lybeck
- Department of Orthopaedic Surgery, Brooke Army Medical Center, Fort Sam Houston, TX
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16
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Detecting the presence of bacteria in low-volume preoperative aspirated synovial fluid by metagenomic next-generation sequencing. Int J Infect Dis 2020; 99:108-116. [PMID: 32721535 DOI: 10.1016/j.ijid.2020.07.039] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/14/2020] [Accepted: 07/21/2020] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES Preoperative diagnosis is important for patients who need revision surgery due to PJI. Microbial culture plays an important role in PJI diagnosis, but the sensitivity of cultures is low when the sample amount is limited or when a patient is treated with antibiotics before sample collection. In this study, metagenomic next-generation sequencing (mNGS) was used to detect bacteria in preoperative puncture synovial fluid samples from patients with suspected PJI, and the preoperative and intraoperative culture results were compared to estimate its diagnostic efficiency. METHODS From July 2016 to December 2018, patients with suspected PJI who underwent prosthetic joint revision surgery were included, and the results of those who had been tested by preoperative synovial fluid culture and mNGS were obtained. The demographic characteristics, medical history, laboratory test results, culture results, and mNGS results of each patient were recorded. Then, the efficiency of preoperative synovial fluid mNGS was compared to that of synovial fluid culture for diagnosing PJI. RESULTS A total of 37 patients were included, and 24 patients (25 joints) were diagnosed with PJI. The sensitivity, specificity, and accuracy of preoperative synovial fluid mNGS were 92%, 91.7%, and 83.7%, respectively. The sensitivity, specificity, and accuracy of preoperative synovial fluid culture were 52%, 91.7%, and 43.7%, respectively. CONCLUSIONS With a low volume of synovia (1 ml), mNGS can be performed with higher sensitivity and specificity compared to synovial culture. Thus, mNGS can be a useful supplemental method to improve diagnostic efficiency during the preoperative period.
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17
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Deirmengian CA, Kazarian GS, Feeley SP, Sizer SC. False-Positive Automated Synovial Fluid White Blood Cell Counting Is a Concern for Both Hip and Knee Arthroplasty Aspirates. J Arthroplasty 2020; 35:S304-S307. [PMID: 32113809 DOI: 10.1016/j.arth.2020.01.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 01/21/2020] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Although false elevation of automated leukocyte (white blood cell [WBC]) counts has been described in the setting of hip corrosion, the more general correlation between manual and automated cell counts among synovial fluid aspirates from hip and knee arthroplasties has not been studied. METHODS This retrospective review at one laboratory identified 8607 consecutive synovial fluid samples from arthroplasties and 812 from native knees, each with an automated WBC count > 3000 cells/μL and a corresponding paired reflex manual count. The correlation between automated and manual counts was evaluated, as was the rate of false-positive automated WBC counts. RESULTS The correlation between automated WBC counts for native knees, total knee arthroplasties, and total hip arthroplasties was near-perfect, strong, and moderate, respectively. The false-positive rates for automated counts were 4.4%, 10.1%, and 34.3%, respectively (P < .0001). International Consensus Meeting scores and culture positivity demonstrated that manual counts, not automated counts, were correct. CONCLUSION The presence of a hip or knee arthroplasty appears to substantially increase the risk of a false-positive automated synovial fluid WBC count. Clinicians evaluating an arthroplasty should exercise caution when interpreting positive automated WBC counts, and consider requesting a reflex manual count, to verify the accuracy of automated cell counting.
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Affiliation(s)
- Carl A Deirmengian
- Department of Orthopaedic Surgery, The Rothman Institute, Thomas Jefferson University, Philadelphia, PA
| | - Gregory S Kazarian
- Department of Orthopaedic Surgery, The Rothman Institute, Thomas Jefferson University, Philadelphia, PA
| | | | - Stephen C Sizer
- Department of Orthopaedic Surgery, The Rothman Institute, Thomas Jefferson University, Philadelphia, PA
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18
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Cobalt and Chromium Ion Release in Metal-on-Polyethylene and Ceramic-on-Polyethylene THA: A Simulator Study With Cellular and Microbiological Correlations. J Arthroplasty 2020; 35:1123-1129. [PMID: 31852609 PMCID: PMC7085456 DOI: 10.1016/j.arth.2019.11.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/13/2019] [Accepted: 11/19/2019] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND The aims of this study were to determine the levels of cobalt (Co) and chromium (Cr) ions generated in simulators from metal-on-polyethylene (MoP) and ceramic-on-polyethylene (CoP) constructs. Furthermore, we aimed to investigate the cytotoxic effect of these ion levels on native tissues and their potential to modify periprosthetic joint infection risk. METHODS We used in vitro culture of human adipose-derived mesenchymal stem cells (AMSCs) and Staphylococcus epidermidis cultures, respectively. Ten hip simulator constructs (5 MoP and 5 CoP) were assembled and run for 1,000,000 cycles in bovine serum and evaluated for CoCr concentration. Cytotoxicity and growth impact on AMSCs and S. epidermidis was compared between CoCr and inert silicon dioxide. RESULTS After 1,000,000 cycles, mean MoP and CoP Co concentration was 2264 and 0.6 ng/mL, respectively (P < .001). Mean MoP and CoP Cr concentration was 217 and 4.3 ng/mL, respectively (P < .001). Mean MoP Co:Cr ratio was 10:1. Co ions were significantly more toxic to human AMSCs than control silicon dioxide in a dose-response manner (P < .001). S. epidermidis growth was not significantly impacted by Co concentrations observed in the simulators. CONCLUSION MoP constructs built in ideal conditions generated substantial CoCr debris, highlighting a baseline risk with these implants that may be exacerbated by host factors or imperfect surgical technique. Evaluation of impact on AMSCs suggests that debris levels produced under simulator conditions can be cytotoxic. In addition, these concentrations did not potentiate or inhibit S. epidermidis growth, suggesting that elevated periprosthetic joint infection rates with adverse local tissue reaction are related to other factors potentially associated with tissue necrosis.
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19
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Villa JM, Pannu TS, Piuzzi N, Riesgo AM, Higuera CA. Evolution of Diagnostic Definitions for Periprosthetic Joint Infection in Total Hip and Knee Arthroplasty. J Arthroplasty 2020; 35:S9-S13. [PMID: 32046836 DOI: 10.1016/j.arth.2019.10.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/17/2019] [Accepted: 10/19/2019] [Indexed: 02/01/2023] Open
Abstract
Various definitions and biomarkers have been developed in an unsuccessful attempt to obtain a "gold standard" for periprosthetic joint infection (PJI) diagnosis. The development of the 2011 Musculoskeletal Infection Society criteria facilitated further research and advances by allowing the use of a consistent PJI definition across studies. The newly proposed 2018 criteria do not rely at all on expert opinions/consensus. In this review, we describe the most relevant definitions developed throughout recent time, their rationale, characteristics, and supportive evidence for their clinical implementation. In the opinion of the authors, the orthopedic community should consider a probability and likelihood paradigm to create a PJI diagnostic definition. Probably not a single definition might be suited for all situations; the inclusion of serological findings could be the next step moving forward.
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Affiliation(s)
- Jesus M Villa
- Levitetz Department of Orthopaedic Surgery, Cleveland Clinic Florida, Weston, FL
| | - Tejbir S Pannu
- Levitetz Department of Orthopaedic Surgery, Cleveland Clinic Florida, Weston, FL
| | - Nicolas Piuzzi
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH
| | - Aldo M Riesgo
- Levitetz Department of Orthopaedic Surgery, Cleveland Clinic Florida, Weston, FL
| | - Carlos A Higuera
- Levitetz Department of Orthopaedic Surgery, Cleveland Clinic Florida, Weston, FL
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Ottink KD, Strahm C, Muller-Kobold A, Sendi P, Wouthuyzen-Bakker M. Factors to Consider When Assessing the Diagnostic Accuracy of Synovial Leukocyte Count in Periprosthetic Joint Infection. J Bone Jt Infect 2019; 4:167-173. [PMID: 31555502 PMCID: PMC6757010 DOI: 10.7150/jbji.34854] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 06/05/2019] [Indexed: 12/17/2022] Open
Abstract
Synovial white blood cell (WBC) count and the percentage of polymorphonuclear leucocytes (PMN%) is one of the diagnostic criteria to diagnose a periprosthetic joint infection (PJI). Although the test is widely available, the diagnostic accuracy of proposed cut-off levels are influenced by several factors, such as: the affected joint, co-morbid conditions, the causative microorganism and the gathering and processing of samples in the laboratory. In this narrative review we provide an overview on how and to what extent these factors can affect the synovial WBC count and PMN% in synovial fluid.
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Affiliation(s)
- Karsten D Ottink
- Department of Orthopaedics, University of Groningen, University Medical Centre Groningen, the Netherlands
| | - Carol Strahm
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, Switzerland
| | - Anneke Muller-Kobold
- Department of Laboratory Medicine, University of Groningen, University Medical Centre Groningen, The Netherlands
| | - Parham Sendi
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University Basel, Basel, Switzerland
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Marjan Wouthuyzen-Bakker
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Centre Groningen, The Netherlands
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Abdel Karim M, Andrawis J, Bengoa F, Bracho C, Compagnoni R, Cross M, Danoff J, Della Valle CJ, Foguet P, Fraguas T, Gehrke T, Goswami K, Guerra E, Ha YC, Klaber I, Komnos G, Lachiewicz P, Lausmann C, Levine B, Leyton-Mange A, McArthur BA, Mihalič R, Neyt J, Nuñez J, Nunziato C, Parvizi J, Perka C, Reisener MJ, Rocha CH, Schweitzer D, Shivji F, Shohat N, Sierra RJ, Suleiman L, Tan TL, Vasquez J, Ward D, Wolf M, Zahar A. Hip and Knee Section, Diagnosis, Algorithm: Proceedings of International Consensus on Orthopedic Infections. J Arthroplasty 2019; 34:S339-S350. [PMID: 30348566 DOI: 10.1016/j.arth.2018.09.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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22
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Aboltins CA, Antoci V, Bhattacharyya S, Cross M, Ducheyne P, Freiberg AA, Hailer N, Kay P, Ketonis C, Klement MR, Köse N, Lee M, Mitchell P, Nandi S, Palacio JC, Perry K, Prieto H, Shahi A, Trebše R, Turner D, Wu CT, Yazdi H. Hip and Knee Section, Prevention, Prosthesis Factors: Proceedings of International Consensus on Orthopedic Infections. J Arthroplasty 2019; 34:S309-S320. [PMID: 30348551 DOI: 10.1016/j.arth.2018.09.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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23
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Shohat N, Goswami K, Fillingham Y, Tan TL, Calkins T, Della Valle CJ, George J, Higuera C, Parvizi J. Diagnosing Periprosthetic Joint Infection in Inflammatory Arthritis: Assumption Is the Enemy of True Understanding. J Arthroplasty 2018; 33:3561-3566. [PMID: 30100134 DOI: 10.1016/j.arth.2018.07.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/30/2018] [Accepted: 07/16/2018] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Despite concern over the interpretation of serum and synovial fluid tests to screen and diagnose periprosthetic joint infection (PJI) in patients with inflammatory arthritis, only a single study has investigated this area. We aimed to assess accuracy of clinical and laboratory markers for PJI diagnosis in the context of underlying inflammatory arthritis. METHODS This multicenter study was conducted on total joint arthroplasty patients at 3 different centers between 2001 and 2016. PJI was defined based on Musculoskeletal Infection Society criteria. Acute PJI cases were excluded. Patients operated for a diagnosis other than infection, who did not subsequently fail at 1-year follow-up, were considered aseptic revisions. Serum C-reactive protein and erythrocyte sedimentation rate, synovial white blood cell and differential, as well as alpha-defensin and results of frozen section were documented. RESULTS In total, 1220 patients undergoing revision total joint arthroplasty (567 PJI, 653 aseptic) were included. Fifty-five septic patients and 61 in the aseptic group had inflammatory arthritis. Although mean levels of serum C-reactive protein and synovial white blood cell in inflammatory arthritis patients were significantly higher compared to patients without inflammatory arthritis, there were no significant differences in PJI patients. The thresholds associated with increased risk for PJI in patients with and without inflammatory arthritis were similar and closely resembled traditional cut-points. CONCLUSION We demonstrate higher baseline immune upregulation in aseptic revision cases with inflammatory arthritis, but no significant differences are seen for PJI. Conventional PJI thresholds for serum and synovial diagnostic markers should be adhered to. Assumptions about inflammatory arthritis patients needing differential diagnostic protocols should be avoided.
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Affiliation(s)
- Noam Shohat
- The Rothman Institute at Thomas Jefferson University, Philadelphia, PA; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Karan Goswami
- The Rothman Institute at Thomas Jefferson University, Philadelphia, PA
| | - Yale Fillingham
- The Rothman Institute at Thomas Jefferson University, Philadelphia, PA
| | - Timothy L Tan
- The Rothman Institute at Thomas Jefferson University, Philadelphia, PA
| | | | | | | | | | - Javad Parvizi
- The Rothman Institute at Thomas Jefferson University, Philadelphia, PA
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24
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Sultan AA, Cantrell WA, Khlopas A, Berger RJ, Sodhi N, Molloy RM, Krebs VE, Mont MA. Evidence-Based Management of Trunnionosis in Metal-on-Polyethylene Total Hip Arthroplasty: A Systematic Review. J Arthroplasty 2018; 33:3343-3353. [PMID: 29929829 DOI: 10.1016/j.arth.2018.05.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 05/21/2018] [Accepted: 05/23/2018] [Indexed: 02/01/2023] Open
Abstract
Multiple recent reports have indicated a rising awareness of trunnionosis-related implant failures, accounting for up to 3% of all total hip arthroplasty revisions. Moreover, aseptic loosening and osteolysis from local release of metal debris can be the presenting manifestations, and thus the true incidence of trunnionosis is thought to be underreported. Furthermore, the relatively unclear and multifactorial pathogenesis and the widely variable clinical presentations pose a diagnostic challenge. A consensus regarding the ideal intervention and its timing is also lacking. Because of the relative paucity of reports regarding the diagnosis and management of trunnionosis, we conducted this evidence-based review to evaluate the (1) incidence, (2) pathogenesis, (3) diagnosis, and (4) treatment of trunnionosis in metal-on-polyethylene total hip arthroplasty. We then propose an algorithm for the diagnostic work-up and management of this condition.
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Affiliation(s)
- Assem A Sultan
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH
| | | | - Anton Khlopas
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH
| | - Ryan J Berger
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH
| | - Nipun Sodhi
- Department of Orthopaedic Surgery, Lenox Hill Hospital, New York City, NY
| | - Robert M Molloy
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH
| | - Viktor E Krebs
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH
| | - Michael A Mont
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH; Department of Orthopaedic Surgery, Lenox Hill Hospital, New York City, NY
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Diagnosing Taper Corrosion: When Is It the Taper and When Is It Something Else? J Arthroplasty 2018; 33:2712-2715. [PMID: 29502964 DOI: 10.1016/j.arth.2018.01.054] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 01/23/2018] [Indexed: 02/01/2023] Open
Abstract
There has been an increasing use of modularity at the head-neck junction in total hip arthroplasty to more closely mimic the native anatomy, allowing for optimal leg length and stability. Corrosion at this junction in metal-on-polyethylene bearings can lead to an adverse local tissue reaction (ALTR). This increasingly prevalent condition should be considered in the differential diagnosis of hip pain and difficulty ambulating. A recent symposium by the American Academy of Hip and Knee Surgeons described the diagnosis, etiology, management, and prevention of taper corrosion. This article describes the history, physical, plain and advanced imaging findings, laboratory tests, and other diagnoses that should be taken into consideration when diagnosing taper corrosion. The presence of ALTR due to taper corrosion can mimic other diagnoses such as periprosthetic joint infection, instability, or aseptic loosening. Serum metal levels have been found to be the most effective screening tool for identifying corrosion, but other common causes of hip pain and difficulty ambulating should always be ruled out with the use of radiographs and common laboratory techniques before diagnosing ALTR due to corrosion.
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26
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Is the Enzyme-linked Immunosorbent Assay More Accurate Than the Lateral Flow Alpha Defensin Test for Diagnosing Periprosthetic Joint Infection? Clin Orthop Relat Res 2018; 476:1645-1654. [PMID: 30020150 PMCID: PMC6259762 DOI: 10.1097/corr.0000000000000336] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Alpha defensin was proposed as a new biomarker in synovial fluid for the diagnostic workup of failed joint prostheses. To our knowledge, no comparative study of the performance of the quantitative enzyme-linked immunosorbent assay (ELISA) and qualitative lateral flow alpha defensin test has been reported. QUESTIONS/PURPOSES (1) Using the proposed European Bone and Joint Infection Society (EBJIS) criteria for defining periprosthetic joint infection (PJI), is there a difference in the diagnostic accuracy of quantitative ELISA and qualitative lateral flow alpha defensin tests? (2) Is there a difference in the performance of the two alpha defensin tests when using three definition classification systems (Musculoskeletal Infection Society [MSIS], Infectious Diseases Society of America [IDSA], and proposed EBJIS)? METHODS In this retrospective study of samples collected earlier as part of a related longitudinal study, we included patients in whom aspiration of the prosthetic hip or knee was performed as routine investigation before every revision arthroplasty. Between October 2016 and April 2017, a total of 73 patients were eligible for inclusion. As a result of an insufficient fluid volume for analysis (< 5 mL), two patients were excluded. Among the 71 patients in the final analysis, 54 had a knee and 17 a hip arthroplasty. Using the proposed EBJIS criteria, PJI was diagnosed in 22 patients (31%) and aseptic failure in 49 (69%). The alpha defensin ELISA and lateral flow tests were performed in synovial fluid. Patients were classified as having PJI or aseptic failure using the MSIS, the IDSA, and the proposed EBJIS criteria. Sensitivity and specificity of ELISA and the lateral flow alpha defensin test were calculated. Based on receiver operating characteristic analysis, area under the curve values were compared. RESULTS When measured against the proposed EBJIS criteria, the sensitivity of alpha defensin ELISA and the lateral flow test was low and not different from one another with the numbers available at 50% (95% confidence interval [CI], 31%-69%) and 46% (95% CI, 27%-65%; p = 0.857), respectively, whereas both methods showed high specificity (98% [95% CI, 88%-100%]; p = 1.000). For sensitivity, the highest values were seen when compared against the MSIS criteria (ELISA: 85% [95% CI, 56%-97%], lateral flow: 77% [95% CI]; p = 0.871), intermediate with IDSA criteria (ELISA: 73% [95% CI, 48%-89%], lateral flow: 67% [95% CI]; p = 0.867), and lowest with proposed EBJIS criteria (ELISA: 50% [95% CI, 31%-69%], lateral flow: 46% [95% CI]; p = 0.763). Specificity, however, was high regardless of the criteria used, where ELISA and lateral flow produced results that were not different (MSIS: 98% [95% CI, 90%-100%], IDSA: 98% [95% CI, 90%-100%], EBJIS: 98% [95% CI, 88%-100%]; p = 1.000). The area under the curve of alpha defensin ELISA and the lateral flow test was similar, regardless of the definition criteria used (EBJIS: p = 0.566; IDSA: p = 0.425; MSIS: p = 0.339). CONCLUSIONS There is no difference between the quantitative and qualitative alpha defensin test for confirmation of PJI, irrespective of applied definition criteria. Having the advantage of providing results within 10 minutes without the need for a laboratory facility, the qualitative test may be of interest in the intraoperative setting, however, at a cost of higher test expense. LEVEL OF EVIDENCE Level I, diagnostic study.
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27
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Okroj KT, Calkins TE, Kayupov E, Kheir MM, Bingham JS, Beauchamp CP, Parvizi J, Della Valle CJ. The Alpha-Defensin Test for Diagnosing Periprosthetic Joint Infection in the Setting of an Adverse Local Tissue Reaction Secondary to a Failed Metal-on-Metal Bearing or Corrosion at the Head-Neck Junction. J Arthroplasty 2018; 33:1896-1898. [PMID: 29452973 DOI: 10.1016/j.arth.2018.01.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 12/31/2017] [Accepted: 01/04/2018] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND In patients with adverse local tissue reaction (ALTR) secondary to a failed metal-on-metal (MoM) bearing or corrosion at the head-neck junction in a metal-on-polyethylene bearing, ruling in or out periprosthetic joint infection (PJI) can be challenging. Alpha-defensin has emerged as an accurate test for PJI. The purpose of this multicenter, retrospective study was to evaluate the accuracy of the alpha-defensin synovial fluid test in detecting PJI in patients with ALTR. METHODS We reviewed medical records of 26 patients from 3 centers with ALTR that had an alpha-defensin test performed. Patients were assessed for PJI using the Musculoskeletal Infection Society criteria. Thirteen of these subjects had MoM total hip arthroplasty, 9 had ALTR secondary to head-neck corrosion, and 4 had MoM hip resurfacing. RESULTS Only 1 of the 26 patients met Musculoskeletal Infection Society criteria for infection. However, 9 hips were alpha-defensin positive, including 1 true positive and 8 that were falsely positive (31%). All 8 of the false positives were also Synovasure positive, although 5 of 8 had an accompanying warning stating the results may be falsely positive due to a low synovial C-reactive protein value. CONCLUSION Similar to synovial fluid white blood cell count, alpha-defensin testing is prone to false-positive results in the setting of ALTR. Therefore, we recommend an aggressive approach to ruling out PJI including routine aspiration of all hips with ALTR before revision surgery to integrate the synovial fluid blood cell count, differential, cultures and adjunctive tests like alpha-defensin to allow for accurate diagnosis preoperatively.
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Affiliation(s)
| | - Tyler E Calkins
- Midwest Orthopaedics at Rush University Medical Center, Chicago, IL
| | - Erdan Kayupov
- Midwest Orthopaedics at Rush University Medical Center, Chicago, IL
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Tetreault MW, Jacobs JJ, Mahmud W, Nam D. Adverse Local Tissue Reaction After a Metal-on-Metal Total Hip Prosthesis Without Elevated Serum Metal Ion Levels. Orthopedics 2018; 41:e438-e441. [PMID: 29257191 DOI: 10.3928/01477447-20171213-05] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 10/17/2017] [Indexed: 02/03/2023]
Abstract
In the 1990s, metal-on-metal (MoM) bearings were reintroduced in total hip arthroplasty (THA), having the proposed advantages of decreased wear and improved stability. However, catastrophic adverse local tissue reaction (ALTR) secondary to metal debris from both the bearing surface and the head-neck junction is a well-recognized complication. The measurement of metal ion levels in the serum is often a first-line test to identify failure of a MoM bearing. The authors describe a 70-year-old man who presented with a multiply revised MoM THA and a large periprosthetic fluid collection incidentally seen during computed tomography for renal nephrolithiasis. The patient reported painless, progressive swelling over the lateral aspect of the hip. An infectious workup including serum erythrocyte sedimentation rate, C-reactive protein, and intraarticular hip aspiration yielded negative results. Metal ion levels in the serum, including a minimally elevated cobalt level, were unremarkable, and metal-lymphocyte transformation testing yielded negative results. Radiographic imaging revealed progressive osteolysis around the proximal femur, and magnetic resonance imaging showed large fluid collections with irregular wall thickening surrounding the gluteal and iliopsoas musculature. At revision surgery, a large fluid collection and corrosion at the head-neck junction were present. Pathology specimens confirmed the presence of an ALTR. This report presents a previously undescribed case of an ALTR secondary to MoM THA in the absence of elevated serum metal ion levels. This indicates the necessity of considering all aspects of a patient's clinical presentation, imaging modalities, and laboratory testing in the evaluation and diagnosis of a symptomatic MoM THA. [Orthopedics. 2018; 41(3):e438-e441.].
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The role of synovial fluid analysis in the detection of periprosthetic hip and knee infections: a systematic review and meta-analysis. INTERNATIONAL ORTHOPAEDICS 2018. [DOI: 10.1007/s00264-018-3865-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Gomez-Urena EO, Tande AJ, Osmon DR, Berbari EF. Diagnosis of Prosthetic Joint Infection: Cultures, Biomarker and Criteria. Infect Dis Clin North Am 2018; 31:219-235. [PMID: 28483043 DOI: 10.1016/j.idc.2017.01.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Prosthetic joint infections (PJIs) are devastating complications after joint arthroplasty that continue to pose a diagnostic challenge. Currently, a single, stand-alone test with the adequate accuracy and reliability for diagnosis of PJI is not available; therefore, physicians who care for patients with PJI must rely on a combination of diagnostic tests for the diagnosis of PJI. This article reviews conventional laboratory test modalities, diagnostic accuracy and limitations of current tests, and novel emerging tests for the diagnosis of PJI.
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Affiliation(s)
- Eric O Gomez-Urena
- Division of Infectious Diseases, Mayo Clinic School of Medicine, 200 First Street Southwest, Rochester, MN 55905, USA.
| | - Aaron J Tande
- Division of Infectious Diseases, Mayo Clinic School of Medicine, 200 First Street Southwest, Rochester, MN 55905, USA
| | - Douglas R Osmon
- Division of Infectious Diseases, Mayo Clinic School of Medicine, 200 First Street Southwest, Rochester, MN 55905, USA
| | - Elie F Berbari
- Division of Infectious Diseases, Mayo Clinic School of Medicine, 200 First Street Southwest, Rochester, MN 55905, USA
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31
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Siljander MP, Sobh AH, Baker KC, Baker EA, Kaplan LM. Multidrug-Resistant Organisms in the Setting of Periprosthetic Joint Infection-Diagnosis, Prevention, and Treatment. J Arthroplasty 2018; 33:185-194. [PMID: 28869114 DOI: 10.1016/j.arth.2017.07.045] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 07/22/2017] [Accepted: 07/25/2017] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Periprosthetic joint infection (PJI) is a rare yet challenging problem in total hip and knee arthroplasties. The management of PJI remains difficult primarily due to the evolution of resistance by the infecting organisms. METHODS This review profiles acquired mechanisms of bacterial resistance and summarizes established and emerging techniques in PJI diagnosis, prevention, and treatment. RESULTS New techniques in PJI diagnosis and prevention continue to be explored. Antibiotics combined with 1 or 2-stage revision are associated with the higher success rates and remain the mainstay of treatment. CONCLUSION With higher prevalence of antibiotic-resistant organisms, novel antibiotic implant and wound care materials, improved methods for organism identification, and well-defined organism-specific treatment algorithms are needed to optimize outcomes of PJI.
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Affiliation(s)
- Matthew P Siljander
- Department of Orthopaedic Surgery, Beaumont Health System, Royal Oak, Michigan
| | - Ali H Sobh
- Department of Orthopaedic Surgery, Beaumont Health System, Royal Oak, Michigan
| | - Kevin C Baker
- Department of Orthopaedic Research, Beaumont Health System, Royal Oak, Michigan
| | - Erin A Baker
- Department of Orthopaedic Research, Beaumont Health System, Royal Oak, Michigan
| | - Lige M Kaplan
- Department of Orthopaedic Surgery, Beaumont Health System, Royal Oak, Michigan
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32
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Aro E, Seppänen M, Mäkelä KT, Luoto P, Roivainen A, Aro HT. PET/CT to detect adverse reactions to metal debris in patients with metal-on-metal hip arthroplasty: an exploratory prospective study. Clin Physiol Funct Imaging 2017; 38:847-855. [PMID: 29280283 DOI: 10.1111/cpf.12493] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 11/23/2017] [Indexed: 11/30/2022]
Abstract
Metal-on-metal (MoM) bearings in total hip arthroplasties and hip resurfacing arthroplasties have recently shown a new type of complication: adverse reactions to metal debris (ARMD). ARMD is characterized by local severe inflammation and tissue necrosis leading to implant failures. The gluteal muscle region is important for the patient outcome after revision surgery. This prospective positron emission tomography/computed tomography (PET/CT) study was undertaken to evaluate the characteristics of 2-deoxy-2-[18 F]fluoro-d-glucose ([18 F]FDG) and [68 Ga]Gallium citrate ([68 Ga]Citrate) PET/CT in ARMD patients. [18 F]FDG and [68 Ga]Citrate PET/CT were performed in 18 hip arthroplasty patients: 12 ARMD patients (with 16 MoM hips) and six arthroplasty controls without ARMD. Tracer uptake was evaluated visually, and maximum standardized uptake (SUVmax ) was measured in the gluteal muscle region. ARMD severity was graded by metal artefact reduction sequence-magnetic resonance imaging (MARS-MRI). Periprosthetic [18 F]FDG uptake was observed in 15 of 16 hips, [68 Ga]Citrate uptake in three of 16 hips, respectively. The distribution of tracer uptake resembled infection in three hips. In the gluteal muscle region, the SUVmax of [18 F]FDG was significantly greater in hips with moderate and severe ARMD compared with the controls (P = 0·009 for [18 F]FDG and P = 0·217 for [68 Ga]Citrate). In patients who needed revision surgery, an intraoperative finding of gluteal muscle necrosis was associated with increased local SUVmax as detected by preoperative [18 F]FDG (P = 0·039), but not by [68 Ga]Citrate (P = 0·301). In conclusion, the inflammatory reaction to metal debris in hip arthroplasty patients is best visualized with [18 F]FDG.
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Affiliation(s)
- Erik Aro
- Orthopaedic Research Unit, Department of Orthopaedic Surgery and Traumatology, Turku University Hospital and University of Turku, Turku, Finland.,Department of Clinical Physiology and Nuclear Medicine and Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Marko Seppänen
- Department of Clinical Physiology and Nuclear Medicine and Turku PET Centre, Turku University Hospital, Turku, Finland.,Turku PET Centre, University of Turku, Turku, Finland.,Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Keijo T Mäkelä
- Orthopaedic Research Unit, Department of Orthopaedic Surgery and Traumatology, Turku University Hospital and University of Turku, Turku, Finland
| | | | - Anne Roivainen
- Turku PET Centre, University of Turku, Turku, Finland.,Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Hannu T Aro
- Orthopaedic Research Unit, Department of Orthopaedic Surgery and Traumatology, Turku University Hospital and University of Turku, Turku, Finland
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33
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Lee YS, Koo KH, Kim HJ, Tian S, Kim TY, Maltenfort MG, Chen AF. Synovial Fluid Biomarkers for the Diagnosis of Periprosthetic Joint Infection: A Systematic Review and Meta-Analysis. J Bone Joint Surg Am 2017; 99:2077-2084. [PMID: 29257013 DOI: 10.2106/jbjs.17.00123] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The search for a single standard reference test for determining periprosthetic joint infection (PJI) through analysis of synovial fluid has yielded numerous biomarkers as potential candidates. The purpose of the present systematic review and meta-analysis was to evaluate the diagnostic accuracy of synovial fluid biomarkers and to determine which test has the highest diagnostic odds ratio (DOR) for the diagnosis of PJI. METHODS An online literature search of the MEDLINE, Embase, and Cochrane databases identified 33 articles reporting a total of 13 major parameters for diagnosing PJI through analysis of synovial fluid. Each of the included articles was independently analyzed for risk of bias and for concerns regarding applicability utilizing the QUADAS-2 (Quality Assessment of Diagnostic Accuracy Studies-2) tool. The mada (meta-analysis of diagnostic accuracy) tool was used to generate forest plots for sensitivity, specificity, and the log of the DOR, as well as summary statistics. RESULTS In this analysis, 13 index tests (leukocyte count; measurement of the percentage of polymorphonucleocytes [PMN%] and the levels of C-reactive protein [CRP], α-defensin, leukocyte esterase [LE], interleukin [IL]-6, IL-8, IL-10, IL-1β, vascular endothelial growth factor [VEGF], and granulocyte-colony stimulating factor [G-CSF]; culture; and polymerase chain reaction [PCR] analysis) were evaluated on the basis of ≥2 articles. Of these tests, 8 (leukocyte count, PMN%, CRP, α-defensin, LE, IL-6, IL-8, and culture) were appropriate for pooled analysis. The overall sensitivity of these 8 markers was 0.85, and all but culture showed a sensitivity of ≥0.8. All markers showed a specificity of ≥0.9. Of the 8 tests, measurement of the α-defensin level showed the highest log DOR. CONCLUSIONS Synovial fluid leukocyte count, PMN%, CRP, α-defensin, LE, IL-6, and IL-8 all demonstrated high sensitivity for diagnosing PJI, with α-defensin being the best synovial marker based on the highest log DOR. However, other synovial fluid tests that demonstrate good diagnostic performance can also be used in combination for the diagnosis of PJI. LEVEL OF EVIDENCE Diagnostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Yong Seuk Lee
- Department of Orthopedic Surgery, Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania.,Department of Orthopedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, South Korea
| | - Kyung-Hoi Koo
- Department of Orthopedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, South Korea
| | - Hyun Jung Kim
- Institute for Evidence-Based Medicine and Department of Preventive Medicine, Korea University College of Medicine, Seoul, South Korea
| | - Shaoqi Tian
- Department of Orthopedic Surgery, Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania.,Department of Joint Surgery, the Affiliated Hospital of Medical College, Qingdao University, Qingdao, People's Republic of China
| | - Tae-Young Kim
- Department of Orthopedic Surgery, Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania.,Department of Orthopedic Surgery, Hallym University Sacred Heart Hospital, Anyang-si, South Korea
| | - Mitchell G Maltenfort
- Department of Orthopedic Surgery, Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Antonia F Chen
- Department of Orthopedic Surgery, Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
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Vierra BM, Blumenthal SR, Amanatullah DF. Modularity in Total Hip Arthroplasty: Benefits, Risks, Mechanisms, Diagnosis, and Management. Orthopedics 2017; 40:355-366. [PMID: 28598491 DOI: 10.3928/01477447-20170606-01] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 11/07/2016] [Indexed: 02/03/2023]
Abstract
Modular implants are currently widely used in total hip arthroplasty because they give surgeons versatility during the operation, allow for easier revision surgery, and can be adjusted to better fit the anatomy of the specific patient. However, modular implants, specifically those that have metal-on-metal junctions, are susceptible to crevice and fretting corrosion. This can ultimately cause implant failure, inflammation, and adverse local tissue reaction, among other possible side effects. Surgeons should be aware of the possibility of implant corrosion and should follow a set of recommended guidelines to systematically diagnose and treat patients with corroded implants. Ultimately, surgeons will continue to use modular implants because of their widespread benefits. However, more research is needed to determine how to minimize corrosion and the negative side effects that have been associated with modular junctions in total hip arthroplasty. [Orthopedics. 2017; 40(6):355-366.].
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35
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Honkanen M, Jämsen E, Karppelin M, Huttunen R, Lyytikäinen O, Syrjänen J. Concordance between the old and new diagnostic criteria for periprosthetic joint infection. Infection 2017; 45:637-643. [PMID: 28608224 DOI: 10.1007/s15010-017-1038-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 06/06/2017] [Indexed: 11/26/2022]
Abstract
PURPOSE There is no uniform definition for periprosthetic joint infection (PJI). New diagnostic criteria were formulated in an international consensus meeting in 2013 and adopted by Centers for Disease Control (CDC) in 2016. The purpose of this study is to compare the new diagnostic criteria with the old CDC criteria from the year 1992. METHODS Patients, who had been treated for PJI of hip or knee from 2002 to 2014, in a tertiary care hospital, were identified. Patient records were reviewed by a physician to identify PJI cases fulfilling the old or new CDC criteria and to record data concerning the diagnostic criteria. PJI frequencies were calculated for the two diagnostic criteria sets. Cross tables were formed to compare the concordance between the two sets of criteria in the whole material and in different clinical subgroups. RESULTS Overall 405 cases fulfilling either or both sets of criteria for PJI were identified. 73 (18%) of the patients fulfilled only the old criteria, whereas only one (0.2%) fulfilled only the new criteria. Of the patients who did not fulfil the new criteria, in 39 (53%) the diagnosis was based solely on the clinician's opinion. CONCLUSIONS The number of PJIs is notably lower when using the new, more objective, diagnostic criteria. A large portion of the cases diagnosed as infection by the treating clinician, did not fulfil the new diagnostic criteria.
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Affiliation(s)
- Meeri Honkanen
- Department of Internal Medicine, University Hospital of Tampere, PL 2000, 33521, Tampere, Finland.
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.
| | - Esa Jämsen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
- Coxa, Hospital for Joint Replacement, Tampere, Finland
| | - Matti Karppelin
- Department of Internal Medicine, University Hospital of Tampere, PL 2000, 33521, Tampere, Finland
| | - Reetta Huttunen
- Department of Internal Medicine, University Hospital of Tampere, PL 2000, 33521, Tampere, Finland
| | - Outi Lyytikäinen
- Department of Infectious Diseases, National Institute for Health and Welfare, Helsinki, Finland
| | - Jaana Syrjänen
- Department of Internal Medicine, University Hospital of Tampere, PL 2000, 33521, Tampere, Finland
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
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36
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Plummer DR, Yi PH, Jacobs JJ, Urban RM, Moric MM, Della Valle CJ. Aseptic Lymphocytic-Dominated Vasculitis-Associated Lesions Scores Do Not Correlate With Metal Ion Levels or Unreadable Synovial Fluid White Blood Cell Counts. J Arthroplasty 2017; 32:1340-1343. [PMID: 27979408 DOI: 10.1016/j.arth.2016.11.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 10/27/2016] [Accepted: 11/14/2016] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Failed metal-on-metal (MoM) bearings are being increasingly encountered with little information to guide evaluation for aseptic lymphocytic-dominated vasculitis-associated lesions (ALVAL). It is often assumed that elevated metal ion levels correlate with the occurrence of ALVAL. Our purpose was to determine the utility of the erythrocyte sedimentation rate, C-reactive protein, synovial white blood cell count, differential (%PMN), and serum metal ion levels in diagnosing ALVAL. METHODS We identified 80-failed MoM total hip arthroplasties. Tissue was examined under light microscopy and graded on a scale of ALVAL severity. Mean laboratory values were compared between groups and receiver operating curves generated with an area under the curve to determine test performance and optimal cutoffs. RESULTS ALVAL scores were graded as low in 30 (37.5%), moderate in 39 (49%), and severe in 8 (10%), with 3 being unreadable. No clear cutoff values for erythrocyte sedimentation rate, C-reactive protein, or synovial white blood cell count could be determined to reliably diagnose moderate or severe ALVAL. Furthermore, serum metal levels had no correlation with ALVAL score. The best test to diagnose ALVAL was the synovial fluid monocyte percentage with an optimal cutoff value of 39% and area under the curve of 69% (moderate testing performance). CONCLUSION The diagnosis of ALVAL remains challenging, with most of the screening tests being unreliable. Although serum metal ion levels are typically elevated in failed MoM bearings, higher levels do not appear to correlate with ALVAL grade. Elevated synovial fluid monocytes may provide diagnostic utility for ALVAL, suggesting a possible delayed-type hypersensitivity reaction.
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Affiliation(s)
- Darren R Plummer
- Department of Orthopaedic Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Paul H Yi
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California
| | - Joshua J Jacobs
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Robert M Urban
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Mario M Moric
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Craig J Della Valle
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
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Sassoon AA, Barrack RL. Pseudotumour formation and subsequent resolution in metal-on-metal total hip arthroplasty following revision: Instructional review and an illustrative case report with revision using a dual mobility design. Bone Joint J 2017; 98-B:736-40. [PMID: 27235513 DOI: 10.1302/0301-620x.98b6.36908] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 01/26/2016] [Indexed: 12/13/2022]
Abstract
The use of large-diameter metal-on-metal (MoM) components in total hip arthroplasty (THA) is associated with an increased risk of early failure due to adverse local tissue reaction to metal debris (ARMD) in response to the release of metal ions from the bearing couple and/or head-neck taper corrosion. The aim of this paper was to present a review of the incidence and natural history of ARMD and the forms of treatment, with a focus on the need for and extent of resection or debulking of the pseudotumour. An illustrative case report is presented of a patient with an intra-pelvic pseudotumour associated with a large diameter MoM THA, which was treated successfully with revision of the bearing surface to a dual mobility couple and retention of the well-fixed acetabular and femoral components. The pseudotumour was left in situ Resolution of the intra-pelvic mass and normalisation of metal ion levels was observed seven months post-operatively. Cite this article: Bone Joint J 2016;98-B:736-40.
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Affiliation(s)
- A A Sassoon
- University of Washington, 1959 NE Pacific St, Seattle, WA, 98195, USA
| | - R L Barrack
- Washington University, 4921 Parkview Place, St. Louis, MO 63110, USA
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38
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Amanatullah DF, Sucher MG, Bonadurer GF, Pereira GC, Taunton MJ. Metal in Total Hip Arthroplasty: Wear Particles, Biology, and Diagnosis. Orthopedics 2016; 39:371-379. [PMID: 27459144 DOI: 10.3928/01477447-20160719-06] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 06/13/2016] [Indexed: 02/03/2023]
Abstract
Total hip arthroplasty (THA) has been performed for nearly 50 years. Between 2006 and 2012, more than 600,000 metal-on-metal THA procedures were performed in the United States. This article reviews the production of metal wear debris in a metal-on-metal articulation and the interaction of cobalt and chromium ions that ultimately led to a dramatic decline in the use of metal-on-metal THA articulations. Additionally, the article reviews mechanisms of metal wear, the biologic reaction to cobalt and chromium ions, the clinical presentation of failing metal-on-metal articulations, and current diagnostic strategies. Further, the article discusses the use of inflammatory markers, metal ion levels, radiographs, metal artifact reduction sequence magnetic resonance imaging, and ultrasound for failed metal-on-metal THA procedures. When adopting new technologies, orthopedic surgeons must weigh the potential increased benefits against the possibility of new mechanisms of failure. Metal-on-metal bearings are a prime example of the give and take between innovation and clinical results, especially in the setting of an already successful procedure such as THA. [Orthopedics. 2016; 39(6):371-379.].
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Tischler EH, Plummer DR, Chen AF, Della Valle CJ, Parvizi J. Leukocyte Esterase: Metal-on-Metal Failure and Periprosthetic Joint Infection. J Arthroplasty 2016; 31:2260-3. [PMID: 27094243 DOI: 10.1016/j.arth.2016.03.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 03/01/2016] [Accepted: 03/07/2016] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Adverse local tissue reactions (ALTRs) and periprosthetic joint infection can occur after metal-on-metal total hip arthroplasty (THA), both potentially generating purulent synovial fluid (SF) and elevated white cell count. This makes it difficult to distinguish between diagnoses; therefore, we evaluated leukocyte esterase (LE) strip test's reliability in ruling out periprosthetic joint infection in ALTR revision THA. METHODS Sixty-one patients with ALTRs and an LE strip test were evaluated, excluding 15 cases with SF metallic debris. LE strip tests were classified -/trace, + (mildly positive), and ++ (strongly positive). RESULTS LE strip tests were ++, +, -/trace in 8 patients (13.1%), 14 (23.0%), and 39 (63.9%), respectively. Means and ranges of SF white cell count and polymorphonuclear percentage were 1291.4 (0-10,886 cells/μL), and 46.1% (0%-94%), respectively. CONCLUSION ++ LE strip test, in conjunction with preoperative work-ups, reliably rules out infection in 92.9% of patients undergoing THA revision secondary to ALTR.
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Affiliation(s)
- Eric H Tischler
- Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | | | - Antonia F Chen
- Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | | | - Javad Parvizi
- Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
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40
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Utility of Serum Inflammatory and Synovial Fluid Counts in the Diagnosis of Infection in Taper Corrosion of Dual Taper Modular Stems. J Arthroplasty 2016; 31:1997-2003. [PMID: 26994651 DOI: 10.1016/j.arth.2016.02.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 01/12/2016] [Accepted: 02/08/2016] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND An accurate diagnosis of periprosthetic joint infection (PJI) is critical as treatment of the infected total hip arthroplasty differs from aseptic failure. The clinical presentation of PJI may mimic symptoms of taper corrosion. Our aim was to evaluate the utility of serum inflammatory markers and synovial fluid white blood cell (WBC)/differential counts in diagnosis of PJI in failed dual taper total hip arthroplasty due to taper corrosion. METHODS We retrospectively reviewed 62 dual taper modular stem patients who underwent revision surgery for symptomatic adverse local tissue reaction due to taper corrosion. All patients had preoperative hip synovial aspirations, serum inflammatory markers, metal ion levels, and intraoperative cultures. Using Musculoskeletal Infection Society PJI criteria, we divided the cohort into infected and noninfected groups. Receiver-operating characteristic curves were constructed to determine the relationship and optimal cutoff values for erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and synovial fluid counts. RESULTS Infection group had significantly higher mean ESR (P = .002), CRP (P = .01), synovial fluid WBC (P < .001), and neutrophil percentage (P = .02). Cobalt levels were significantly elevated in noninfection group (P = .02). Using receiver-operating characteristic curve analysis, the most ideal tests for diagnosis of PJI were synovial fluid WBC (area under the curve = 86%, optimal cutoff 730 WBC/uL) and neutrophil percentage (area under the curve = 83%, optimal cutoff 65%). ESR and CRP thresholds of 22 mm/h and 3 mg/L demonstrated 57% sensitivity and 95% specificity and 29% sensitivity and 93% specificity for detection of PJI, respectively. CONCLUSION Our study suggests that ESR and CRP are useful in excluding PJI in dual taper modular implants with corrosion, whereas both synovial WBC count and neutrophil percentage are useful markers for diagnosing infection.
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Abstract
The diagnosis of periprosthetic joint infection (PJI) following total hip arthroplasty and total knee arthroplasty has been one of the major challenges in orthopedic surgery. As there is no single absolute test for diagnosis of PJI, diagnostic criteria for PJI have been proposed that include using several diagnostic modalities. Focused history, physical examination, plain radiographs, and initial serologic tests should be followed by joint aspiration and synovial analysis. Newer diagnostic techniques, such as alpha-defensin and interleukin-6, hold great promise in the future diagnosis of equivocal infections.
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Abstract
Despite the battery of available tests, the diagnosis of periprosthetic joint infection (PJI) remains a challenge. A comprehensive medical history and physical examination with appropriate radiographs followed by erythrocyte sedimentation rate and serum C-reactive protein are the first-line screening test for patients with suspected hip PJI. The second line of investigation of patients with abnormal serology or a strong suspicion for PJI, is joint aspiration. Aspirates should be sent for assessment of white blood cell count, polymorphonuclear percentage, leukocyte esterase strip test, and microbiology. If the first attempt fails, the joint should be re-aspirated at a different time. The International Consensus recommends against infiltration of saline or other fluids into a "dry" joint. In patients not planned for surgery but need further evaluation for PJI, a nuclear imaging study may help. In others with a planned revision surgery, intraoperative samples for frozen section and culture study are the best measures available. Treatment strategies for PJI are well established in the literature. Poor surgical candidates receive oral suppressive antibiotic therapy alone. Acute PJI, presenting within 4 weeks of the index surgery, or as a result of bacteraemia, may be treated with irrigation and debridement and implant retention. Chronic PJI, occurring more than 4 weeks after initial surgery, is treated with 1-stage or 2-stage revision arthroplasty. In some persistent infections or patients who refuse to undergo revision surgery, salvage procedures may be needed.
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Chalmers BP, Perry KI, Taunton MJ, Mabry TM, Abdel MP. Diagnosis of adverse local tissue reactions following metal-on-metal hip arthroplasty. Curr Rev Musculoskelet Med 2016; 9:67-74. [PMID: 26816329 PMCID: PMC4762796 DOI: 10.1007/s12178-016-9321-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Metal-on-metal (MOM) bearing surfaces in hip arthroplasty have distinct advantages that led to the increase in popularity in North America in the early 2000s. However, with their increased use, concerns such as local cytotoxicity and hypersensitivity reactions leading to soft tissue damage and cystic mass formation (known collectively as adverse local tissue reactions (ALTR)) became apparent. The clinical presentation of ALTR is highly variable. The diagnosis of ALTR in MOM articulations in hip arthroplasty can be challenging and a combination of clinical presentation, physical examination, implant track record, component positioning, serum metal ion levels, cross-sectional imaging, histopathologic analysis, and consideration of alternative diagnoses are essential.
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Affiliation(s)
- Brian P Chalmers
- Department of Orthopedic Surgery, Mayo Clinic, 200 First Street S.W, Rochester, MN, 55905, USA.
| | - Kevin I Perry
- Department of Orthopedic Surgery, Mayo Clinic, 200 First Street S.W, Rochester, MN, 55905, USA.
| | - Michael J Taunton
- Department of Orthopedic Surgery, Mayo Clinic, 200 First Street S.W, Rochester, MN, 55905, USA.
| | - Tad M Mabry
- Department of Orthopedic Surgery, Mayo Clinic, 200 First Street S.W, Rochester, MN, 55905, USA.
| | - Matthew P Abdel
- Department of Orthopedic Surgery, Mayo Clinic, 200 First Street S.W, Rochester, MN, 55905, USA.
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Haynes JA, Stambough JB, Barrack RL, Nam D. Conversion of a failed hip resurfacing arthroplasty to total hip arthroplasty: pearls and pitfalls. Curr Rev Musculoskelet Med 2016; 9:103-11. [PMID: 26803608 PMCID: PMC4762797 DOI: 10.1007/s12178-016-9326-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Surface replacement arthroplasty (SRA) remains a viable alternative to total hip arthroplasty (THA) in appropriately selected, active adults with degenerative hip disease. However, orthopedic surgeons are facing a number of scenarios where revision of one or both components of an SRA is indicated. Indications for revision vary and impact the potential outcomes of conversion of a SRA to THA. While clinical outcomes are generally favorable, a growing body of data illustrates patients who undergo conversion of a SRA to THA to be at increased risk of requiring a repeat revision surgery and experiencing functional outcomes inferior to that of a primary THA. The results of patients undergoing conversion of a SRA to THA highlight the need for careful patient selection, thorough preoperative counseling, and technical precision when performing a SRA. Furthermore, a systematic approach to the failed SRA is necessary to ensure optimal clinical results.
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Affiliation(s)
- Jacob A Haynes
- Department of Orthopaedic Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8233, St. Louis, MO, 63110, USA
| | - Jeffrey B Stambough
- Department of Orthopaedic Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8233, St. Louis, MO, 63110, USA
| | - Robert L Barrack
- Department of Orthopaedic Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8233, St. Louis, MO, 63110, USA
| | - Denis Nam
- Department of Orthopaedic Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8233, St. Louis, MO, 63110, USA.
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Abstract
Periprosthetic joint infection (PJI) complicates between 0.5% and 1.2% primary total hip arthroplasties (THAs) and may have devastating consequences. The traditional assessment of patients suffering from PJI has involved the serological study of inflammatory markers and microbiological analysis of samples obtained from the joint space. Treatment has involved debridement and revision arthroplasty performed in either one or two stages. We present an update on the burden of PJI, strategies for its diagnosis and treatment, the challenge of resistant organisms and the need for definitive evidence to guide the treatment of PJI after THA. Cite this article: Bone Joint J 2016;98-B(1 Suppl A):27–30.
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Affiliation(s)
- M. R. Whitehouse
- University of Bristol, Southmead
Hospital, Bristol, BS10
5NB, UK
| | - M. C. Parry
- Royal Orthopaedic Hospital NHS Foundation
Trust, Bristol Road South, Birmingham, B31 2AP, UK
| | - S. Konan
- The University of British Columbia, 3rd
Floor, 910 West 10th Avenue, Vancouver, BC, V5Z
4E3, Canada
| | - C. P. Duncan
- The University of British Columbia, 3rd
Floor, 910 West 10th Avenue, Vancouver, BC, V5Z
4E3, Canada
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46
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Corrosion and Adverse Local Tissue Reaction in One Type of Modular Neck Stem. J Arthroplasty 2015; 30:1787-93. [PMID: 26027523 DOI: 10.1016/j.arth.2015.04.039] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 03/19/2015] [Accepted: 04/20/2015] [Indexed: 02/01/2023] Open
Abstract
Modular neck stems allow for optimization of joint biomechanics by restoring anteversion, offset, and limb length. A potential disadvantage is the generation of metal ions from fretting and crevice corrosion. We identified 118 total hip arthroplasty implanted with one type of dual-modular femoral component. Thirty-six required revision due to adverse local tissue reaction. Multivariate analysis isolated females and low offset necks as risk factors for failure. Kaplan-Meir analysis revealed small stem sizes failed at a higher rate during early follow-up period. Although the cobalt/chrome levels were higher in the failed group, these tests had low diagnostic accuracy for ALTR, while MRI scan was more sensitive. We conclude that the complications related to the use of dual modular stems of this design outweigh the potential benefits.
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Shafafy R, McClatchie W, Chettiar K, Gill K, Hargrove R, Sturridge S, Guyot A. Use of leucocyte esterase reagent strips in the diagnosis or exclusion of prosthetic joint infection. Bone Joint J 2015; 97-B:1232-6. [DOI: 10.1302/0301-620x.97b9.34910] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Infection is a leading indication for revision arthroplasty. Established criteria used to diagnose prosthetic joint infection (PJI) include a range of laboratory tests. Leucocyte esterase (LE) is widely used on a colorimetric reagent strip for the diagnosis of urinary tract infections. This inexpensive test may be used for the diagnosis or exclusion of PJI. Aspirates from 30 total hip arthroplasties (THAs) and 79 knee arthroplasties (KA) were analysed for LE activity. Semi-quantitative reagent strip readings of 15, 70, 125 and 500 white blood cells (WBC) were validated against a manual synovial white cell count (WCC). A receiver operating characteristic (ROC) curve was constructed to determine the optimal cut-off point for the semi-quantitative results. Based on established criteria, six THAs and 15 KAs were classified as infected. The optimal cut-off point for the diagnosis of PJI was 97 WBC. The closest semi-quantitative reading for a positive result was 125 WBC, achieving a sensitivity of 81% and a specificity of 93%. The positive and negative predictive values of the LE test strip were 74% and 95% respectively. The LE reagent strip had a high specificity and negative predictive value. A negative result may exclude PJI and negate the need for further diagnostic tests. Cite this article: Bone Joint J 2015;97-B:1232–6.
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Affiliation(s)
- R. Shafafy
- Frimley Park Hospital NHS Foundation Trust, Frimley, Surrey, UK
| | - W. McClatchie
- Frimley Park Hospital NHS Foundation Trust, Frimley, Surrey, UK
| | - K. Chettiar
- Dartford and Gravesham NHS Trust, Dartford, Kent, UK
| | - K. Gill
- Royal Surrey County Hospital NHS Trust, Guildford, Surrey, UK
| | - R. Hargrove
- Frimley Park Hospital NHS Foundation Trust, Frimley, Surrey, UK
| | - S. Sturridge
- Frimley Park Hospital NHS Foundation Trust, Frimley, Surrey, UK
| | - A. Guyot
- Frimley Park Hospital NHS Foundation Trust, Frimley, Surrey, UK
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Alijanipour P, Adeli B, Hansen EN, Chen AF, Parvizi J. Intraoperative Purulence Is Not Reliable for Diagnosing Periprosthetic Joint Infection. J Arthroplasty 2015; 30:1403-6. [PMID: 25817184 DOI: 10.1016/j.arth.2015.03.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 03/04/2015] [Accepted: 03/10/2015] [Indexed: 02/01/2023] Open
Abstract
UNLABELLED Purulence, defined as presence of pus, is based on subjective interpretation yet has been considered a definite sign of periprosthetic joint infection (PJI). 583 patients undergoing revision arthroplasty due to presumed PJI were retrospectively studied. PJI definition was independent of purulence, based on the definition of Musculoskeletal Infection Society recently modified by International Consensus Group on PJI. 498 patients fulfilled the criteria for definite PJI and 59 patients were deemed as aseptic. Purulence had sensitivity, specificity, positive and negative predictive values of 0.82, 0.32, 0.91, and 0.17, respectively. Purulence was not correlated with higher culture positivity yet was associated with higher synovial WBC counts (mean of 34.8 versus 5.2×10(3)/μL in patients without purulence [P<0.001]). In the absence of objective definition for purulence and in light of its inadequate test characteristics compared to a multi-criteria definition, purulence cannot serve as a single absolute diagnostic criterion for PJI. LEVEL OF EVIDENCE Level I, Diagnostic Studies.
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Affiliation(s)
- Pouya Alijanipour
- Rothman Institute of Orthopaedics at Thomas Jefferson University Hospital, Philadelphia Pennsylvania
| | - Bahar Adeli
- St. George's University School of Medicine, Apt 1R, Philadelphia, Pennsylvania
| | - Erik N Hansen
- UCSF Department of Orthopaedic Surgery, Division of Adult Reconstructive Surgery, San Francisco, California
| | - Antonia F Chen
- Rothman Institute of Orthopaedics at Thomas Jefferson University Hospital, Philadelphia Pennsylvania
| | - Javad Parvizi
- Rothman Institute of Orthopaedics at Thomas Jefferson University Hospital, Philadelphia Pennsylvania
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Yi PH, Cross MB, Moric M, Levine BR, Sporer SM, Paprosky WG, Jacobs JJ, Della Valle CJ. Do serologic and synovial tests help diagnose infection in revision hip arthroplasty with metal-on-metal bearings or corrosion? Clin Orthop Relat Res 2015; 473:498-505. [PMID: 25171935 PMCID: PMC4294906 DOI: 10.1007/s11999-014-3902-5] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND The diagnosis of periprosthetic joint infection (PJI) in patients with failed metal-on-metal (MoM) bearings and corrosion reactions in hip arthroplasties can be particularly difficult, because the clinical presentation of adverse local tissue reactions may mimic that of PJI, because it can also occur concurrently with PJI, and because common laboratory tests used to diagnose PJI may be elevated in patients with MoM THAs. QUESTIONS/PURPOSES We sought to determine the test properties of the serum erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), synovial fluid white blood cell (WBC) count, and synovial fluid differential (percent polymorphonuclear cells [PMNs]) in diagnosing PJI in either MoM hips undergoing revision for a variety of indications or in non-MoM hips undergoing revision for either corrosion reaction or full-thickness wear. Additionally, we sought to describe how MoM bearings, metal debris, and corrosion reactions can confound the analysis of the synovial fluid WBC count and affect its diagnostic use for PJI. METHODS We reviewed 150 revision hips meeting specified inclusion criteria (92 MoM total hips, 19 MoM hip resurfacings, 30 non-MoM bearings with corrosion, and nine full-thickness bearing surface wear with metallosis). In our review, we diagnosed 19 patients as infected using Musculoskeletal Infection Society (MSIS) criteria. Mean laboratory values were compared between infected and not infected patients and receiver operator characteristic curves were generated with an area under the curve (AUC) to determine test performance and optimal cutoffs. RESULTS After excluding the inaccurate synovial fluid samples, the synovial fluid WBC count (performed accurately in 102 patients) was the best test for the diagnosis of PJI (AUC=98%, optimal cutoff 4350 WBC/μL) followed by the differential (performed accurately in 102 patients; AUC=90%, optimal cutoff 85% PMN). The ESR (performed in 131 patients) and CRP (performed in 129 patients) both had good sensitivity (83% and 94%, respectively). Patients meeting MSIS criteria for PJI had higher mean serum ESR, CRP, synovial fluid WBC count, and differential than those not meeting MSIS criteria (p<0.05 for all). An observer blinded to the MSIS diagnosis of the patient assessed the synovial fluid samples for inaccuracy secondary to metal or cellular debris. Synovial fluid sample "inaccuracy" was defined as the laboratory technician noting the presence of metal or amorpous material, fragmented cells, or clots, or the sample having some defect preventing an automated cell count from being performed. Of the 141 patients who had a synovial fluid sample initially available for review, 47 (33%) had a synovial fluid sample deemed to be inaccurate. A synovial fluid WBC count was still reported; however, 35 of these 47 hips (75%) and 11 of these 35 (31%) were falsely positive for infection. CONCLUSIONS The diagnosis of PJI is extremely difficult in patients with MoM bearings or corrosion and the synovial fluid WBC count can frequently be falsely positive and should be relied on only if a manual count is done and if a differential can be performed. A more aggressive approach to preoperative evaluation for PJI is recommended in these patients to allow for careful evaluation of the synovial fluid specimen, the integration of synovial fluid culture results, and repeat aspiration if necessary. LEVEL OF EVIDENCE Level III, diagnostic study. See Guidelines for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Paul H. Yi
- Rush University Medical Center, 1611 West Harrison Street, Suite 300, Chicago, IL 60612 USA
| | | | - Mario Moric
- Rush University Medical Center, 1611 West Harrison Street, Suite 300, Chicago, IL 60612 USA
| | - Brett R. Levine
- Rush University Medical Center, 1611 West Harrison Street, Suite 300, Chicago, IL 60612 USA
| | - Scott M. Sporer
- Rush University Medical Center, 1611 West Harrison Street, Suite 300, Chicago, IL 60612 USA
| | - Wayne G. Paprosky
- Rush University Medical Center, 1611 West Harrison Street, Suite 300, Chicago, IL 60612 USA
| | - Joshua J. Jacobs
- Rush University Medical Center, 1611 West Harrison Street, Suite 300, Chicago, IL 60612 USA
| | - Craig J. Della Valle
- Rush University Medical Center, 1611 West Harrison Street, Suite 300, Chicago, IL 60612 USA
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50
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Prieto HA, Berbari EF, Sierra RJ. Acute delayed infection: increased risk in failed metal on metal total hip arthroplasty. J Arthroplasty 2014; 29:1808-12. [PMID: 24851788 DOI: 10.1016/j.arth.2014.04.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/31/2014] [Accepted: 04/06/2014] [Indexed: 02/01/2023] Open
Abstract
Adverse local tissue reactions occurring in metal-on-metal total hip arthroplasty (MoM THA) could potentially lead to secondary failure modes such as dislocation or infection. The authors report a series of 124 patients treated with MoM hip arthroplasty between 2006 and 2010 with a minimum follow-up of 3 years. Eight hips presented with acute delayed or late periprosthetic joint infection (PJI) (defined as an infection occurring after 3 months in an otherwise well functioning implant). The rate of infection observed was higher than expected, almost 4 times higher (5.6%) compared to previous historical cohorts from our institution (1.3%). This high risk of infection in patients with DePuy ASR implants requires further study but we theorize that the increased prevalence of infection could be due to a combination of particulate debris, molecular (rather than particulate) effects of Co and Cr ions on soft tissues, and/or products of corrosion that may change the local environment predisposing to infection.
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Affiliation(s)
- Hernan A Prieto
- Investigation performed at the Mayo Clinic, Rochester, Minnesota
| | - Elie F Berbari
- Investigation performed at the Mayo Clinic, Rochester, Minnesota
| | - Rafael J Sierra
- Investigation performed at the Mayo Clinic, Rochester, Minnesota
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