TITLE:
Risk of Surgical Site Infection in Patients Undergoing Total Knee Arthroplasty
AUTHORS:
Paulo Cezar Vidal Carneiro de Albuquerque, Alvaro Antônio Bandeira Ferraz, Clarissa Miranda Carneiro de Albuquerque Olbertz, José Miguel Francisco da Silva Souza, Alessandro Henrique da Silva Santos, Paula Eduarda Miranda Carneiro de Albuquerque
KEYWORDS:
Knee Arthroplasty, Knee Debridement Infection, Joint Prosthetic Joint, Infection/Diagnosis, Infection Therapy
JOURNAL NAME:
Open Journal of Orthopedics,
Vol.8 No.7,
July
19,
2018
ABSTRACT: The aim of this study was
to determine the participation of risk factors in the infection in patients who
underwent total knee arthroplasty. This is a prospective longitudinal study,
descriptive and analytical, that was carried out between January 2013 and
December 2015. Eighty-one procedures were performed in 78 individuals, 16 males
and 62 females. Three subjects underwent the procedure on both knees. The
following predictive factors of infection were identified: Age, gender,
comorbidities, evaluation of functional physical status using the American
Society of Anesthesiologists Physical Status Classification System (ASAPS),
length of hospital stay, use of prophylactic antibiotics and duration of surgery.
The data was tabulated in a database using a Microsoft Excel spreadsheet. For statistical analysis, the chi-square
test, chi-square test for independence and Fischer’s exact test were
applied, all at a significance level of 5% (0.05). Surgical site infection was
more prevalent in males (23.5%), age over 70 years (25.0%), for left
gonarthrosis (17.9%), in
the presence of comorbidities (17.9%), when hospital stay was 6 or more days
(27.8%), in total arthroplasties of left knee (17,9%), in surgical times of up
to 2 hours (20%), in the use of prophylactic antibiotics (16.7%) and in level
II classification in the ASAPS (18.8%). The independence test was not
significant in any of the evaluated factors (p-value greater than 0.05). The most prevalent bacteria identified
in cases of infection was Staphylococcus
aureus (33.2%). The risk factors studied were not statistically
significant.