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Ahrens H, Steinicke AC, Gosheger G, Schwarze J, Bockholt S, Moellenbeck B, Theil C. Do Organism Profile and Resistance Patterns Change between First and Subsequent Two-Stage Revision for Periprosthetic Joint Infection? Antibiotics (Basel) 2024; 13:771. [PMID: 39200071 PMCID: PMC11352185 DOI: 10.3390/antibiotics13080771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 08/04/2024] [Accepted: 08/14/2024] [Indexed: 09/01/2024] Open
Abstract
Increasing antibiotic resistance has been reported as an issue in the treatment of periprosthetic joint infection (PJI). A repeat two-stage revision for recurrent PJI is at high risk of reinfection. However, it is unclear if the microorganism profile plays a role with potentially more resistant or polymicrobial infections. This is a retrospective, single-center analysis of two-stage revisions performed between 2011 and 2017. We identified 46 patients who underwent a repeat resection arthroplasty for recurrent PJI of the same joint after a previous two-stage revision of the same joint at the same department. All microbiological findings were analyzed focusing on microbiological spectrum and resistance testing as well as the potential impact on reinfection-free survival. The most common organism found at the time of recurrent PJI were coagulase-negative Staphylococci (39%) followed by Gram-negative organisms (28%). The risk of polymicrobial infections, difficult-to-treat resistant organisms, and Gram-negative infections increased significantly. Among staphylococcal infections, there was a high percentage of methicillin-resistant species and resistance to oral antibiotics. Patients with Gram-negative organisms had a reduced infection-free survivorship, while resistant organisms were not associated with decreased survival. Patients who undergo a repeat two-stage revision for recurrent PJI have more polymicrobial and resistant organisms, although the impact on survivorship is unclear.
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Schnetz M, Ewald L, Jakobi T, Klug A, Hoffmann R, Gramlich Y. Use of Hinged Implants for Multistage Revision Knee Arthroplasty for Severe Periprosthetic Joint Infection: Remission Rate and Outcomes After a Minimum Follow-Up of 5 Years. J Arthroplasty 2024:S0883-5403(24)00798-8. [PMID: 39069272 DOI: 10.1016/j.arth.2024.07.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 07/17/2024] [Accepted: 07/18/2024] [Indexed: 07/30/2024] Open
Abstract
BACKGROUND In severe periprosthetic joint infection after total knee arthroplasty (TKA), multistage procedures are indicated for ongoing signs of infection after implant removal during the spacer interval of an intended 2-stage exchange. In these cases, several additional debridement and spacer exchange surgeries may be necessary. Herein, we analyzed the complications, remission rates, and functional outcomes after multistage revision arthroplasty using hinged TKAs. METHODS Patients (n = 79) treated with multistage revision arthroplasty after chronic periprosthetic joint infection of the knee were included (2010 to 2018). During the prosthesis-free interval, a static spacer containing antibiotic-loaded bone cement was implanted. The mean number of surgeries, including implant removal and revision arthroplasty, was 3.8 (range, 3 to 8). The mean duration from implant removal to revision arthroplasty was 83 days (range, 49 to 318). Complications, remission, and mortality were analyzed after a minimum follow-up of 5 years. Outcomes were assessed based on the Knee Society Score (KSS) and the Western Ontario McMasters University Osteoarthritis Index. RESULTS During follow-up, 24 (30.4%) patients underwent revision surgery, with a mean time to surgical revision of 99 weeks (range, 1 to 261). After follow-up, the infection-free remission rate and overall mortality were 87.3 and 11.4%, respectively. The mean KSS was 74.3 (range, 24 to 99), the KSS Function Score was 60.8 (range, 5 to 100), and the Western Ontario McMasters University Osteoarthritis Index 30.2 (range, 5 to 83). CONCLUSIONS In difficult-to-treat cases, multistage revision arthroplasty showed high remission rates and low mortality after a follow-up of 5 years. The overall revision rate was comparably high, accounting for early and late reinfections most of the time. In cases of implant survival, functional outcomes comparable to those of revision hinge TKA reported in the literature can be achieved. Therefore, multistage procedures with additional debridement steps should be performed in cases of ongoing infections in intended 2-stage procedures.
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Affiliation(s)
- Matthias Schnetz
- Department of Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, Frankfurt am Main, Germany
| | - Larissa Ewald
- Department of Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, Frankfurt am Main, Germany
| | - Tim Jakobi
- Department of Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, Frankfurt am Main, Germany
| | - Alexander Klug
- Department of Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, Frankfurt am Main, Germany
| | - Reinhard Hoffmann
- Department of Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, Frankfurt am Main, Germany
| | - Yves Gramlich
- Department of Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, Frankfurt am Main, Germany
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Tubin N, Brouget-Murray J, Bureau A, Morris J, Azad M, Abdelbary H, Grammatopoulos G, Garceau S. Fellowship Training in Arthroplasty Improves Treatment Success of Debridement, Antibiotics, and Implant Retention for Periprosthetic Knee Infections. Arthroplast Today 2024; 27:101378. [PMID: 38933043 PMCID: PMC11200284 DOI: 10.1016/j.artd.2024.101378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 02/19/2024] [Accepted: 03/12/2024] [Indexed: 06/28/2024] Open
Abstract
Background Debridement, antibiotics, and implant retention (DAIR) is a well-accepted surgical strategy for periprosthetic joint infection (PJI) following total knee arthroplasty (TKA). DAIR in TKA may be incorrectly thought of as a "simple" procedure not requiring formal specialized training in arthroplasty. Currently, there are no studies comparing the risk of treatment failure based on surgeon fellowship training. Methods A retrospective review was performed of consecutive patients who underwent DAIR for TKA PJI at our institution. Two cohorts were created based on whether DAIR was performed by an arthroplasty fellowship-trained (FT) surgeon or nonarthroplasty fellowship-trained (NoFT) surgeon. Primary outcome was treatment failure following DAIR at a minimum of 1 year postoperatively. Treatment failure was based on the Tier 1 International Consensus Meeting definition of infection control. Secondary outcomes were also recorded including death during the totality of PJI treatment. Results A total of 112 patients were identified (FT = 68, NoFT = 44). At a mean follow-up of 7.3 years [standard deviation = 3.9], 73 patients (59.8%) failed treatment. Fellowship training in arthroplasty significantly improved treatment success rates (FT, 35/68 [51.5%]; NoFT, 10/44 [22.7%]; odds ratio 2.5 [95% confidence interval 1.1 to 5.9; P = .002]). Survivorship also differed significantly between the cohorts; at timepoints of 1.5 months, 5 months, 30 months, and 180 months, survivorship of the FT cohort was 79.4%, 67.6%, 54.4%, and 50.7%, respectively, compared with a survivorship of 65.9%, 52.3%, 25%, and 22.7% in the NoFT cohort (P = .002). Conclusions TKA PJI treated with DAIR should not be considered a simple procedure. Improved treatment success may be associated with subspecialty fellowship training in arthroplasty. Level of Evidence IV.
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Affiliation(s)
- Nicholas Tubin
- Division of Orthopaedic Surgery, Department of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, ON, Canada
| | - Jonathan Brouget-Murray
- Division of Orthopaedic Surgery, Department of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, ON, Canada
| | - Antoine Bureau
- Division of Orthopaedic Surgery, Department of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, ON, Canada
| | - Jared Morris
- Division of Orthopaedic Surgery, Department of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, ON, Canada
| | - Marsa Azad
- Division of Orthopaedic Surgery, Department of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, ON, Canada
- Division of Orthopaedic Surgery, Department of Infectious Diseases, The Ottawa Hospital, Ottawa, ON, Canada
| | - Hesham Abdelbary
- Division of Orthopaedic Surgery, Department of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, ON, Canada
| | - George Grammatopoulos
- Division of Orthopaedic Surgery, Department of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, ON, Canada
| | - Simon Garceau
- Division of Orthopaedic Surgery, Department of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, ON, Canada
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Ward SA, Habibi AA, Ashkenazi I, Arshi A, Meftah M, Schwarzkopf R. Innovations in the Isolation and Treatment of Biofilms in Periprosthetic Joint Infection: A Comprehensive Review of Current and Emerging Therapies in Bone and Joint Infection Management. Orthop Clin North Am 2024; 55:171-180. [PMID: 38403364 DOI: 10.1016/j.ocl.2023.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Periprosthetic joint infections (PJIs) are a devastating complication of joint arthroplasty surgeries that are often complicated by biofilm formation. The development of biofilms makes PJI treatment challenging as they create a barrier against antibiotics and host immune responses. This review article provides an overview of the current understanding of biofilm formation, factors that contribute to their production, and the most common organisms involved in this process. This article focuses on the identification of biofilms, as well as current methodologies and emerging therapies in the management of biofilms in PJI.
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Affiliation(s)
- Spencer A Ward
- NYU Langone Orthopedic Hospital, NYU Langone Health, 301 East 17th Street, Room 1402, New York, NY 10003, USA
| | - Akram A Habibi
- NYU Langone Orthopedic Hospital, NYU Langone Health, 301 East 17th Street, Room 1402, New York, NY 10003, USA
| | - Itay Ashkenazi
- NYU Langone Orthopedic Hospital, NYU Langone Health, 301 East 17th Street, Room 1402, New York, NY 10003, USA
| | - Armin Arshi
- NYU Langone Orthopedic Hospital, NYU Langone Health, 301 East 17th Street, Room 1402, New York, NY 10003, USA
| | - Morteza Meftah
- NYU Langone Orthopedic Hospital, NYU Langone Health, 301 East 17th Street, Room 1402, New York, NY 10003, USA
| | - Ran Schwarzkopf
- NYU Langone Orthopedic Hospital, NYU Langone Health, 301 East 17th Street, Room 1402, New York, NY 10003, USA.
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Florance J, Chang J, Kelly PJ, Smith D, Bolognesi M, Seyler T, Ryan SP. Inferior Outcomes for Patients Transferred Between Surgical Stages for Knee Periprosthetic Joint Infection. J Arthroplasty 2024; 39:490-493. [PMID: 37619801 DOI: 10.1016/j.arth.2023.08.012] [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: 04/01/2023] [Revised: 08/01/2023] [Accepted: 08/04/2023] [Indexed: 08/26/2023] Open
Abstract
BACKGROUND Periprosthetic joint infection (PJI) in total knee arthroplasty may result in 2-stage revision surgery. There are limited data describing outcomes when the first stage is completed at an outside hospital and the patient is referred to a tertiary center. We hypothesized that patients have greater success when both surgeries occur at a single center. METHODS There were 25 knee PJI patients who presented with an antibiotic spacer and had a minimum 2-year follow-up who were retrospectively identified at a single tertiary referral center from 2014 to 2021. A cohort matched for age, sex, body mass index, Elixhauser comorbidity measure, spacer type, infectious organism, and year of surgery was established with patients who had both stages completed at the investigating institution. Modified Delphi success criteria of no subsequent surgery or reinfection with any species were compared. RESULTS The transferred group demonstrated a treatment success of 40% compared to 84% in the continuous group (P < .01). The transferred group was more likely to have an additional procedure between stages (44 versus 8%, P < .01), with a higher number of surgeries after primary total knee arthroplasty (4.8 versus 3.0, P < .01), between stages (1.4 versus 0.2, P < .01), and after second stage (0.8 versus 0.2, P = .03). The transferred group had longer durations between stages (20.1 versus 7.0 weeks, P < .01). CONCLUSION Patients who have PJIs transferred between stages demonstrated higher treatment failure. Surgeons should consider transfer early with a goal of continuous management by a single institution.
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Affiliation(s)
- Jonathon Florance
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina
| | - Jerry Chang
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina
| | - Patrick J Kelly
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina
| | - Denise Smith
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina
| | - Michael Bolognesi
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina
| | - Thorsten Seyler
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina
| | - Sean P Ryan
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina
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Kim BI, Wixted CM, Schwartz AM, Jiranek WA, Ryan SP, Seyler TM. Risk factors for failure after rotational muscle flap coverage for prosthetic knee infections. J Orthop Surg (Hong Kong) 2024; 32:10225536241230349. [PMID: 38279963 DOI: 10.1177/10225536241230349] [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] [Indexed: 01/29/2024] Open
Abstract
INTRODUCTION Soft tissue defects are a devastating complication of prosthetic joint infections (PJI) after total knee arthroplasty (TKA). Rotational flaps are commonly utilized to address these defects with variable reports of success. This study aimed to identify predictors of poor outcomes in rotational muscle flap placement after prosthetic knee infections. The authors hypothesized that outcomes may vary based on infecting pathogen and treatment characteristics. METHODS 44 cases of rotational muscle flaps for prosthetic knee infection were retrospectively evaluated at a tertiary referral hospital from 2007 to 2020. Muscle flap types included 39 medial and four lateral gastrocnemius, and one anterior tibialis. Minimum follow-up was 1 year (median: 3.4 years). Primary outcome was flap-related complications. Secondary outcomes included recurrent infection requiring additional surgery, final joint outcomes, and mortality. RESULTS One-year complication-free flap survivorship was 83.9%, recurrent infection-free survivorship was 65.7%, and amputation-free survivorship was 79%. Multivariable cox regression revealed that rheumatoid arthritis diagnosis (HR: 3.4; p = .028) and methicillin-resistant Staphylococcus aureus-positive culture (HR: 4.0; p = .040) had increased risk, while Coagulase-negative Staphylococcus infections had reduced risk for recurrent or persistent infection (HR: 0.2; p = .023). Final joint outcome was retained TKA implant in 18 (40.9%), amputation in 15 (34.1%) patients, and definitive treatment with articulating spacer in 10 (22.7%). 5-years survivorship from death was 71.4%. CONCLUSION Rotational muscle flaps for soft tissue coverage of the knee are often performed in limb salvage situations with poor survivorship from flap complications, reinfections, and amputation. When considering surgical options for limb salvage, patients should be counseled on these risks.
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Affiliation(s)
- Billy I Kim
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
| | - Colleen M Wixted
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
| | | | | | - Sean P Ryan
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
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Haddad N, Ajaz J, Mansour L, Kasemodel R, Jarvis J, Jarad J, Gorski H, Carr M. A Review of the Clinical Utilization of Oral Antibacterial Therapy in the Treatment of Bone Infections in Adults. Antibiotics (Basel) 2023; 13:4. [PMID: 38275315 PMCID: PMC10812599 DOI: 10.3390/antibiotics13010004] [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: 11/14/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 01/27/2024] Open
Abstract
Chronic osteomyelitis in adults is managed with prolonged courses of intravenous antibiotics in conjunction with surgical debridement of necrotic bone. Over the past 40 years, there has been no paradigm shift in this approach, as randomized controlled trials of this standard of care compared to alternatives such as prolonged oral antibiotics are scarce. However, there have been many small trials, case reports, and review papers evaluating the effectiveness of oral treatment for chronic osteomyelitis. The oral route for infections requiring prolonged treatment is intuitively and practically more favorable due to several advantages, the most important of which is the avoidance of long-term IV antimicrobial therapy with its complications, inconvenience, and cost. In this paper, we review the literature evaluating oral antibiotic therapy in the management of chronic bone infections since 1975. The majority of osteomyelitis infections are caused by Staphylococcus aureus, hence we focus on its treatment using oral antibiotics; however, we also emphasize subpopulations of patients with diabetes, implanted hardware, and with less common bacterial organisms. The primary objective of this review is to promulgate clinical recommendations on the use of oral antibiotics in bone infections in the context of initial therapy, transition from intravenous therapy, and the role of chronic suppression. The secondary objective is to summarize current knowledge of the specific oral antimicrobial agents that are commonly utilized, together with a synopsis of the available literature pertaining to their pharmacokinetic/pharmacodynamic properties and duration of therapy in bone infection.
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Affiliation(s)
- Nicholas Haddad
- College of Medicine, Central Michigan University, 1632 Stone St., Saginaw, MI 48603, USA
- CMU Medical Education Partners, Internal Medicine Residency Program, Central Michigan University, 1000 Houghton Ave., Saginaw, MI 48602, USA; (J.A.); (R.K.); (J.J.)
| | - Jibran Ajaz
- CMU Medical Education Partners, Internal Medicine Residency Program, Central Michigan University, 1000 Houghton Ave., Saginaw, MI 48602, USA; (J.A.); (R.K.); (J.J.)
| | - Lina Mansour
- Covenant HealthCare, 1447 N. Harrison St., Saginaw, MI 48602, USA; (L.M.); (M.C.)
| | - Robert Kasemodel
- CMU Medical Education Partners, Internal Medicine Residency Program, Central Michigan University, 1000 Houghton Ave., Saginaw, MI 48602, USA; (J.A.); (R.K.); (J.J.)
| | - Jennifer Jarvis
- Ascension St. Mary’s Hospital, 800 S. Washington Ave., Saginaw, MI 48601, USA;
| | - John Jarad
- CMU Medical Education Partners, Internal Medicine Residency Program, Central Michigan University, 1000 Houghton Ave., Saginaw, MI 48602, USA; (J.A.); (R.K.); (J.J.)
| | - Haley Gorski
- McLaren Bay Region, 1900 Columbus Ave., Bay City, MI 48708, USA;
| | - Maddie Carr
- Covenant HealthCare, 1447 N. Harrison St., Saginaw, MI 48602, USA; (L.M.); (M.C.)
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Gründer L, Bockholt S, Gosheger G, Schulze M, Schwarze J, Pützler J, Moellenbeck B, Theil C. Two-Stage Revision Arthroplasty for Resistant Gram-Positive Periprosthetic Joint Infections Using an Oral Linezolid-Based Antibiotic Regime. Antibiotics (Basel) 2023; 12:1235. [PMID: 37627655 PMCID: PMC10451634 DOI: 10.3390/antibiotics12081235] [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: 06/14/2023] [Revised: 07/18/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Increasing antibiotic resistance has been reported as an issue in the systemic treatment of periprosthetic joint infection (PJI). Linezolid offers the advantages of high oral bioavailability and little resistance; however, efficacy in the treatment of PJI varies considerably, and studies reporting consistent surgical treatment are scarce. METHODS This is a retrospective, single-center analysis of two-stage revisions performed between 2008 and 2017. We identified 111 patients who met the inclusion criteria. Oral linezolid was given for 28 days following 14 days of intravenous tailored antibiotics in resistant gram-positive PJI. A total of 64% of the patients had methicillin-resistant coagulase-negative staphylococci. The median follow-up was 43 (interquartile range (IQR) 30-57) months. RESULTS 22% (24/111) of the patients underwent surgery for subsequent infection. The 5-year infection-free survival probability was 77% (95% confidence interval (CI) 69-85). A total of 5% of the patients (6/111) had the same organism at the time of reinfection. The patients with infections caused by other organisms than Coagulase-negative staphylococci tended to have a worse reinfection-free survivorship at five years (70% vs. 81%, p = 0.09). Furthermore, the patients with obesity tended to have reduced reinfection-free survivorship at five years (69% vs. 84%, p = 0.08). Overall, 5% (6/111) of the patients had blood count abnormalities with no treatment discontinuations. CONCLUSION Two-stage revision arthroplasty with systemic oral linezolid treatment for resistant gram-positive PJI results in an infection control of 77% at the mid-term.
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Affiliation(s)
| | | | | | | | | | | | | | - Christoph Theil
- Department of Orthopedics and Tumor Orthopedics, Muenster University Hospital, Albert-Schweitzer-Campus 1, 48149 Muenster, Germany
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Ma T, Lyu J, Ma J, Huang X, Chen K, Wang S, Wei Y, Shi J, Xia J, Zhao G, Huang G. Comparative analysis of pathogen distribution in patients with fracture-related infection and periprosthetic joint infection: a retrospective study. BMC Musculoskelet Disord 2023; 24:123. [PMID: 36782133 PMCID: PMC9926857 DOI: 10.1186/s12891-023-06210-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 01/30/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND The purpose of this study is to investigate the microbial patterns of periprosthetic joint infection (PJI) and fracture-related infection (FRI), and guide for the formulation of more accurate empirical antimicrobial regimens based on the differences in pathogen distribution. METHODS A comparative analysis of pathogen distribution was conducted between 153 patients (76 with PJI and 77 with FRI). Predicted analyses against isolated pathogens from two cohorts were conducted to evaluate the best expected efficacy of empirical antimicrobial regimens (imipenem + vancomycin, ciprofloxacin + vancomycin, and piperacillin/tazobactam + vancomycin). RESULTS Our study found significant differences in pathogen distribution between the PJI and FRI cohorts. Staphylococci (61.3% vs. 31.9%, p = 0.001) and Gram-negative bacilli (GNB, 26.7% vs. 56.4%, p < 0.001) were responsible for the majority of infections both in the PJI and FRI cohorts, and their distribution in the two cohorts showed a significant difference (p < 0.001). Multi-drug resistant organisms (MDRO) were more frequently detected in the FRI cohort (29.3% vs. 44.7%, p = 0.041), while methicillin-resistant coagulase-negative Staphylococci (MRCoNS, 26.7% vs. 8.5%, p = 0.002) and Canidia albicans (8.0% vs. 1.1%, p = 0.045) were more frequently detected in the PJI cohort. Enterobacter spp. and Acinetobacter baumannii were detected only in the FRI cohort (11.7% and 8.5%, respectively). CONCLUSIONS Staphylococci and GNB were responsible for the majority of infections in both PJI and FRI. Empirical antimicrobial therapy should focus on the coverage of Staphylococci in PJI and GNB in FRI, and infections caused by MDROs should be more vigilant in FRI, while the high incidence of MRCoNS in PJI should be noted, which could guide for the formulation of more accurate empirical antimicrobial regimens. Targeted therapy for FRI caused by A. baumannii and PJI caused by C. albicans needs to be further investigated. Our study reports significant differences in pathogen distribution between the two infections and provides clinical evidence for studies on the mechanism of implant-associated infection.
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Affiliation(s)
- Tiancong Ma
- grid.411405.50000 0004 1757 8861Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing’an District, Shanghai, China ,grid.8547.e0000 0001 0125 2443Fudan University, 220Th Handan Road, Yang’pu District, Shanghai, China
| | - Jinyang Lyu
- grid.411405.50000 0004 1757 8861Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing’an District, Shanghai, China ,grid.8547.e0000 0001 0125 2443Fudan University, 220Th Handan Road, Yang’pu District, Shanghai, China
| | - Jingchun Ma
- grid.411405.50000 0004 1757 8861Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing’an District, Shanghai, China
| | - Xin Huang
- grid.411405.50000 0004 1757 8861Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing’an District, Shanghai, China ,grid.8547.e0000 0001 0125 2443Fudan University, 220Th Handan Road, Yang’pu District, Shanghai, China
| | - Kangming Chen
- grid.411405.50000 0004 1757 8861Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing’an District, Shanghai, China ,grid.8547.e0000 0001 0125 2443Fudan University, 220Th Handan Road, Yang’pu District, Shanghai, China
| | - Siqun Wang
- grid.411405.50000 0004 1757 8861Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing’an District, Shanghai, China ,grid.8547.e0000 0001 0125 2443Fudan University, 220Th Handan Road, Yang’pu District, Shanghai, China
| | - Yibing Wei
- grid.411405.50000 0004 1757 8861Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing’an District, Shanghai, China ,grid.8547.e0000 0001 0125 2443Fudan University, 220Th Handan Road, Yang’pu District, Shanghai, China
| | - Jingsheng Shi
- grid.411405.50000 0004 1757 8861Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing’an District, Shanghai, China ,grid.8547.e0000 0001 0125 2443Fudan University, 220Th Handan Road, Yang’pu District, Shanghai, China
| | - Jun Xia
- Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing'an District, Shanghai, China. .,Fudan University, 220Th Handan Road, Yang'pu District, Shanghai, China.
| | - Guanglei Zhao
- Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing'an District, Shanghai, China. .,Fudan University, 220Th Handan Road, Yang'pu District, Shanghai, China.
| | - Gangyong Huang
- Department of Orthopaedic Surgery Huashan Hospital Fudan University, 12Th Wulumuqi Middle Road, Jing'an District, Shanghai, China. .,Fudan University, 220Th Handan Road, Yang'pu District, Shanghai, China. .,Department of Orthopaedic Surgery North Branch of Huashan Hospital Fudan University, 518Th Jingpohu Road, Bao'shan District, Shanghai, China.
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10
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Microbiological Trends and Antibiotic Susceptibility Patterns in Patients with Periprosthetic Joint Infection of the Hip or Knee over 6 Years. Antibiotics (Basel) 2022; 11:antibiotics11091244. [PMID: 36140023 PMCID: PMC9495258 DOI: 10.3390/antibiotics11091244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/05/2022] [Accepted: 09/09/2022] [Indexed: 12/02/2022] Open
Abstract
We sought to analyze trends of the causative pathogens and their antibiotic susceptibility patterns in patients with periprosthetic joint infections (PJI) of the hip and knee to get better insights and improve treatment. Retrospective evaluation of all consecutive patients with microbiological detection of a causative pathogen at a tertiary endoprothetic referral center between January 2016 and December 2021 in Germany was performed. Overall, 612 different microorganisms could be detected in 493 patients (hip: n = 293; knee: n = 200). Evaluation did not show a change in the relative abundance of pathogens detected, with coagulase-negative staphylococci (n = 275; 44.9%) found frequently, followed by S. aureus (n = 86; 14.1%), Enterococcus species (n = 57; 9.3%), Streptococcus species (n = 48; 7.8%), and Gram-negative bacteria (n = 80; 13.1%). Evaluation of the antibiotic susceptibilities showed increasing rates of oxacillin-resistant coagulase-negative staphylococci (60.4%; 46.8−76.7%) and piperacillin-tazobactam-resistant Gram-negative bacteria (26.5%; 0−57.1%), although statistically not significant. Resistance of Gram-positive bacteria to vancomycin (<1%) and Gram-negative microorganisms to meropenem (1.25%) remained an exception. In summary, coagulase-negative staphylococci, as the most frequent pathogen, displayed a continuously high rate of oxacillin resistance. For the highest antimicrobial coverage in the case of an empiric therapy/unknown pathogen, vancomycin might be chosen. Level of evidence: IV.
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