Diagnostic Utility of a Novel Point-of-Care Test of Calprotectin for Periprosthetic Joint Infection After Total Knee Arthroplasty

2021 ◽  
Vol 103 (11) ◽  
pp. 1009-1015
Author(s):  
Jared Warren ◽  
Hiba K. Anis ◽  
Kathleen Bowers ◽  
Tejbir Pannu ◽  
Jesus Villa ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Periprosthetic Joint Infection ◽  
Point Of Care ◽  
Joint Infection ◽  
Diagnostic Utility ◽  
Point Of Care Test ◽  
Total Knee

Current Insights in the Evaluation and Treatment of Infected Total Knee Arthroplasty

2021 ◽  
Author(s):  
Blair S. Ashley ◽  
Javad Parvizi
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Periprosthetic Joint Infection ◽  
Joint Infection ◽  
Difficult Problem ◽  
Postoperative Course ◽  
Infected Total Knee Arthroplasty ◽  
Treatment Considerations ◽  
Total Knee

AbstractTotal knee arthroplasty is a widely successful procedure, but a small percentage of patients have a postoperative course complicated by periprosthetic joint infection (PJI). PJI is a difficult problem to diagnose and to treat, and the management of PJI differs, depending on the acuity of the infection. This paper discusses the established and newer technologies developed for the diagnosis of PJI as well as different treatment considerations and surgical solutions currently available.

Increased risk of periprosthetic joint infection after acute, traumatic wound dehiscence following primary total knee arthroplasty

2021 ◽  
Vol 103-B (6 Supple A) ◽  
pp. 191-195
Author(s):  
Elizabeth B. Gausden ◽  
Matthew B. Shirley ◽  
Matthew P. Abdel ◽  
Rafael J. Sierra
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Periprosthetic Joint Infection ◽  
Joint Infection ◽  
Significant Risk ◽  
Wound Dehiscence ◽  
Increased Risk ◽  
Primary Tkas ◽  
Traumatic Wound ◽  
Total Knee

Aims To describe the risk of periprosthetic joint infection (PJI) and reoperation in patients who have an acute, traumatic wound dehiscence following total knee arthroplasty (TKA). Methods From January 2002 to December 2018, 16,134 primary TKAs were performed at a single institution. A total of 26 patients (0.1%) had a traumatic wound dehiscence within the first 30 days. Mean age was 68 years (44 to 87), 38% (n = 10) were female, and mean BMI was 34 kg/m2 (23 to 48). Median time to dehiscence was 13 days (interquartile range (IQR) 4 to 15). The dehiscence resulted from a fall in 22 patients and sudden flexion after staple removal in four. The arthrotomy was also disrupted in 58% (n = 15), including a complete extensor mechanism disruption in four knees. An irrigation and debridement with component retention (IDCR) was performed within 48 hours in 19 of 26 knees and two-thirds were discharged on antibiotic therapy. The mean follow-up was six years (2 to 15). The association of wound dehiscence and the risk of developing a PJI was analyzed. Results Patients who sustained a traumatic wound dehiscence had a 6.5-fold increase in the risk of PJI (95% confidence interval (CI) 1.6 to 26.2; p = 0.008). With the small number of PJIs, no variables were found to be significant risk factors. However, there were no PJIs in any of the patients who were treated with IDCR and a course of antibiotics. Three knees required reoperation including one two-stage exchange for PJI, one repeat IDCR for PJI, and one revision for aseptic loosening of the tibial component. Conclusion Despite having a traumatic wound dehiscence, the risk of PJI was low, but much higher than experienced in all other TKAs during the same period. We recommend urgent IDCR and a course of postoperative antibiotics to decrease the risk of PJI. A traumatic wound dehiscence increases risk of PJI by 6.5-fold. Cite this article: Bone Joint J 2021;103-B(6 Supple A):191–195.

Development of antibiotic resistance in periprosthetic joint infection after total knee arthroplasty

2021 ◽  
Vol 103-B (6 Supple A) ◽  
pp. 171-176
Author(s):  
Antonio Klasan ◽  
Arne Schermuksnies ◽  
Florian Gerber ◽  
Matt Bowman ◽  
Susanne Fuchs-Winkelmann ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Antibiotic Resistance ◽  
Knee Arthroplasty ◽  
Periprosthetic Joint Infection ◽  
Joint Infection ◽  
Revision Arthroplasty ◽  
Bacterial Strains ◽  
Coagulase Negative Staphylococci ◽  
Primary Arthroplasty ◽  
Total Knee

Aims The management of periprosthetic joint infection (PJI) after total knee arthroplasty (TKA) is challenging. The correct antibiotic management remains elusive due to differences in epidemiology and resistance between countries, and reports in the literature. Before the efficacy of surgical treatment is investigated, it is crucial to analyze the bacterial strains causing PJI, especially for patients in whom no organisms are grown. Methods A review of all revision TKAs which were undertaken between 2006 and 2018 in a tertiary referral centre was performed, including all those meeting the consensus criteria for PJI, in which organisms were identified. Using a cluster analysis, three chronological time periods were created. We then evaluated the antibiotic resistance of the identified bacteria between these three clusters and the effectiveness of our antibiotic regime. Results We identified 129 PJIs with 161 culture identified bacteria in 97 patients. Coagulase-negative staphylococci (CNS) were identified in 46.6% cultures, followed by Staphylococcus aureus in 19.8%. The overall resistance to antibiotics did not increase significantly during the study period (p = 0.454). However, CNS resistance to teicoplanin (p < 0.001), fosfomycin (p = 0.016), and tetracycline (p = 0.014) increased significantly. Vancomycin had an 84.4% overall sensitivity and 100% CNS sensitivity and was the most effective agent. Conclusion Although we were unable to show an overall increase in antibiotic resistance in organisms that cause PJI after TKA during the study period, this was not true for CNS. It is concerning that resistance of CNS to new antibiotics, but not vancomycin, has increased in a little more than a decade. Our findings suggest that referral centres should continuously monitor their bacteriological analyses, as these have significant implications for prophylactic treatment in both primary arthroplasty and revision arthroplasty for PJI. Cite this article: Bone Joint J 2021;103-B(6 Supple A):171–176.

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