Abstract
Objective This study assesses risk factors for periprosthetic joint infection after elective
primary total knee or hip arthroplasty.
Methods The study included 706 medical records of patients undergoing elective primary total
hip or knee arthroplasty from January to December 2018. We used a multivariate analysis
of infection predictors through a logistic regression model. The R software performed
all statistical analysis.
Results The prevalence of infection in the sample was 2.0% (14 cases). Most patients were
women (79.6%), with an afflicted right side (50.6%), and underwent a total knee arthroplasty
(61.3%). Significant risk factors (p < 0.05) for infection included surgical time greater than 120 minutes (p = 0.009) and a history of diabetes (p = 0.025).
Conclusion The risk of infection after elective primary total knee or hip arthroplasty is higher
when the surgical procedure is lengthy (over 120 minutes), or the patient has a history
of diabetes mellitus.
Level of Evidence IIIB, retrospective, case-control study.
Keywords
infection - arthroplasty - predictor - diagnosis
