Economic Burden Of Prosthetic Joint Infection Following Primary Total Knee Replacement In Pakistan

2020 ◽  
Author(s):  
faizan iqbal ◽  
bilal shafiq ◽  
shahid noor ◽  
Nasir ahmed ◽  
zulfiqar ali ◽  
...  
Keyword(s):  
Prosthetic Joint Infection ◽  
Economic Burden ◽  
Financial Burden ◽  
Joint Infection ◽  
Categorical Variables ◽  
Total Cost ◽  
Prosthetic Joint ◽  
Significant Difference ◽  
Total Knee ◽  
Primary Total Knee

Abstract BACKGROUND: The financial burden of prosthetic joint infection after joint replacement in developed countries is well known. There is a need to evaluate the economic burden in developing countries like Pakistan. MATERIALS AND METHODS: Cases performed during this study are divided into two groups. 1. Uneventful primary total knee arthroplasty. 2. Prosthetic joint infection treated with two stage revision. Categorical variables were compared through Chi-square and Fisher Exact test. Continuous variables were compared using Mann-Whitney test. Multivariable regression analysis was done to identify the variable that places major financial burden on patient economy. RESULTS: The total cost of revision surgery for prosthetic joint infection considering twice hospitalization is found to be 7, 91, 353 ± 89,136 rupees. The total cost of uneventful arthroplasty is found to be 3, 50, 289± 32,123 rupees. We observed significant difference with respect to economic details between two groups. CONCLUSION: Measures should be undertaken to reduce PJI by encouraging healthcare providers to consider evidence based protocols to prevent PJI and financial constraints associated with these events.

Prior hip or knee prosthetic joint infection in another joint increases risk three-fold of prosthetic joint infection after primary total knee arthroplasty

2019 ◽  
Vol 101-B (7_Supple_C) ◽  
pp. 91-97 ◽  
Author(s):  
B. P. Chalmers ◽  
J. T. Weston ◽  
D. R. Osmon ◽  
A. D. Hanssen ◽  
D. J. Berry ◽  
...  
Keyword(s):  
Prosthetic Joint Infection ◽  
Joint Infection ◽  
Primary Total Knee Arthroplasty ◽  
Study Cohort ◽  
Study Group ◽  
Prosthetic Joint ◽  
Primary Tkas ◽  
History Of ◽  
Total Knee ◽  
Primary Total Knee

Aims There is little information regarding the risk of a patient developing prosthetic joint infection (PJI) after primary total knee arthroplasty (TKA) when the patient has previously experienced PJI of a TKA or total hip arthroplasty (THA) in another joint. The goal of this study was to compare the risk of PJI of primary TKA in this patient population against matched controls. Patients and Methods We retrospectively reviewed 95 patients (102 primary TKAs) treated between 2000 and 2014 with a history of PJI in another TKA or THA. A total of 50 patients (53%) were female. Mean age was 69 years (45 to 88) with a mean body mass index (BMI) of 36 kg/m2 (22 to 59). In total, 27% of patients were on chronic antibiotic suppression. Mean follow-up was six years (2 to 16). We 1:3 matched these (for age, sex, BMI, and surgical year) to 306 primary TKAs performed in 306 patients with a THA or TKA of another joint without a subsequent PJI. Competing risk with death was used for statistical analysis. Multivariate analysis was followed to evaluate risk factors for PJI in the study cohort. Results The cumulative incidence of PJI in the study cohort (6.1%) was significantly higher than the matched cohort (2.6%) at ten years (hazard ratio (HR) 3.3; 95% confidence interval 1.18 to 8.97; p = 0.02). Host grade in the study group was not a significant risk factor for PJI. Patients on chronic suppression had a higher rate of PJI (HR 15; p = 0.002), with six of the seven patients developing PJI in the study group being on chronic suppression. The new infecting microorganism was the same as the previous in only two of seven patients. Conclusion In this matched cohort study, patients undergoing a clean primary TKA with a history of TKA or THA PJI in another joint had a three-fold higher risk of PJI compared with matched controls with ten-year cumulative incidence of 6.1%. The risk of PJI was 15-fold higher in patients on chronic antibiotic suppression; further investigation into reasons for this and mitigation strategies are recommended. Cite this article: Bone Joint J 2019;101-B(7 Supple C):91–97

Local delivery of tobramycin and vancomycin in primary total knee arthroplasty achieves minimum inhibitory concentrations for common bacteria causing acute prosthetic joint infection

2020 ◽  
Vol 102-B (6_Supple_A) ◽  
pp. 163-169
Author(s):  
Charles M. Lawrie ◽  
Sally Jo ◽  
Toby Barrack ◽  
Stephen Roper ◽  
Rick W. Wright ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Prosthetic Joint Infection ◽  
Joint Infection ◽  
Primary Total Knee Arthroplasty ◽  
Minimum Inhibitory Concentrations ◽  
Prosthetic Joint ◽  
Vancomycin Powder ◽  
Total Knee ◽  
Primary Total Knee

Aims The aim of this study was to determine if the local delivery of vancomycin and tobramycin in primary total knee arthroplasty (TKA) can achieve intra-articular concentrations exceeding the minimum inhibitory concentration thresholds for bacteria causing acute prosthetic joint infection (PJI). Methods Using a retrospective single-institution database of all primary TKAs performed between January 1 2014 and May 7 2019, we identified patients with acute PJI that were managed surgically within 90 days of the initial procedure. The organisms from positive cultures obtained at the time of revision were tested for susceptibility to gentamicin, tobramycin, and vancomycin. A prospective study was then performed to determine the intra-articular antibiotic concentration on postoperative day one after primary TKA using one of five local antibiotic delivery strategies with tobramycin and/or vancomycin mixed into the polymethylmethacrylate (PMMA) or vancomycin powder. Results A total of 19 patients with acute PJI after TKA were identified and 29 unique bacterial isolates were recovered. The mean time to revision was 37 days (6 to 84). Nine isolates (31%) were resistant to gentamicin, ten (34%) were resistant to tobramycin, and seven (24%) were resistant to vancomycin. Excluding one Fusobacterium nucleatum, which was resistant to all three antibiotics, all isolates resistant to tobramycin or gentamicin were susceptible to vancomycin and vice versa. Overall, 2.4 g of tobramycin hand-mixed into 80 g of PMMA and 1 g of intra-articular vancomycin powder consistently achieved concentrations above the minimum inhibitory concentrations of susceptible organisms. Conclusion One-third of bacteria causing acute PJI after primary TKA were resistant to the aminoglycosides commonly mixed into PMMA, and one-quarter were resistant to vancomycin. With one exception, all bacteria resistant to tobramycin were susceptible to vancomycin and vice versa. Based on these results, the optimal cover for organisms causing most cases of acute PJI after TKA can be achieved with a combination of tobramycin mixed in antibiotic cement, and vancomycin powder. Cite this article: Bone Joint J 2020;102-B(6 Supple A):163–169.

scholarly journals 382. Difference in Pathogens Between Hip and Knee Prosthetic Joint Infection

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S198-S198
Author(s):  
Michael Henry ◽  
Milan Kapadia ◽  
Joseph Nguyen; Barry Brause ◽  
Andy O Miller
Keyword(s):  
Prosthetic Joint Infection ◽  
Joint Infection ◽  
Categorical Variables ◽  
Continuous Variables ◽  
Chi Square ◽  
Prosthetic Joint ◽  
Significant Difference ◽  
History Of ◽  
The Difference ◽  
Student’S T

Abstract Background There is contradicting evidence characterizing the difference in pathogens that cause hip and knee prosthetic joint infection (PJI). A possible difference in microbiology may inform choice in antibiotic etiology, prophylaxis, and empiric treatment. We sought to analyze a large cohort of PJIs to see whether there was a significant difference in pathogen between joints. Methods A retrospective cohort of hip and knee PJIs, from 2008 to 2016, were identified by ICD code and surgical codes. The PJI pathogen was identified from synovial or intra-articular tissue cultures. The Student’s t-test was used to compare continuous variables. Chi-square tests were used to compare the categorical variables to joint. Results 807 PJI cases were identified including 444 knees and 363 hips. There were no significant differences between hip and knee PJIs in age, sex, history of PJI, rheumatoid arthritis, Charlson comorbidity index and laterality. There was a higher frequency of diabetes in knee PJIs (25.3%) compared with hip PJIs (15.7%), P < 0.001. No significant difference was found in the prevalence of fungal, staphylococcal (including Staphylococcus aureus), streptococcal, or enterococcal pathogens between hip and knee PJIs. Conclusion In this single-center cohort, hip and knees PJIs are infected with similar pathogens. Multiple site studies are needed to characterize the microbiology of PJIs at a larger scale. Disclosures All authors: No reported disclosures.

scholarly journals Influence of Fixation Methods on Prosthetic Joint Infection Following Primary Total Knee Replacement: Meta-Analysis of Observational Cohort and Randomised Intervention Studies

2019 ◽  
Vol 8 (6) ◽  
pp. 828 ◽  
Author(s):  
Setor K. Kunutsor ◽  
Vikki Wylde ◽  
Michael R. Whitehouse ◽  
Andrew D. Beswick ◽  
Erik Lenguerrand ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Prosthetic Joint Infection ◽  
Observational Studies ◽  
Meta Analysis ◽  
Joint Infection ◽  
Prosthetic Joint ◽  
Observational Cohort ◽  
Total Knee ◽  
Uncemented Fixation ◽  
Primary Total Knee

The type of fixation used in primary total knee replacement (TKR) may influence the risk of prosthetic joint infection (PJI). We conducted a systematic review and meta-analysis to assess published evidence linking type of fixation (cemented, uncemented, or hybrid) with the risk of PJI following primary TKR. Randomised controlled trials (RCTs) and observational cohort studies comparing fixation methods and reporting PJI incidence following primary TKR were identified in MEDLINE, Embase, Web of Science, and Cochrane Library up until November 2018. Summary measures were relative risks (RR) with 95% confidence intervals (CIs). We identified 32 eligible articles (24 observational studies and 8 RCTs) involving 1,161,292 TKRs. In pooled analysis of observational studies, uncemented fixation was associated with a decreased overall PJI risk when compared with cemented fixation at 0.76 (0.64–0.89). Comparing antibiotic-loaded cemented fixation with plain cement, there was no significant difference in overall PJI risk at 0.95 (0.69–1.31), but PJI risk was increased in the first 6-month postoperative period to 1.65 (1.12–2.43). Limited data from RCTs showed no differences in PJI risk among the fixation types. Observational evidence suggests uncemented fixation may be associated with lower PJI risk in primary TKR when compared with cemented fixation. In the early postoperative period, antibiotic-loaded cemented fixation may be associated with increased PJI risk when compared with plain cement. This may either reflect appropriate selection of higher risk patients for the development of PJI to cemented and antibiotic-loaded cement or may reflect a lower PJI risk in uncemented TKR due to factors such as shorter operative time.

Sign in / Sign up

Export Citation Format

Share Document