[Risk factors for total prosthetic joint infection. Case-control study].
OBJECTIVE
To identify the infection risk factors in knee and hip total prosthesis.


METHODS
Case-control study of arthoplasties performed during 10 years.


RESULTS
By means of conditional multivariate analysis, infection risk factors with greater odds ratio (OR) were surgical risk rate >or= 2, according to the National Nosocomial Infections Surveillance (NNIS) (OR, 3.3; 95% confidence interval [CI], 1.1-10.8) and post-operative non-infectious complications (OR, 8.9; 95% CI, 1.1-83.1) (p < 0.05). The global infection rate was 2.4% (95% CI, 1.6%-3.2%) of 1,666 joint implants. Gram-positive cocci were the principal involved microorganisms (63%).


CONCLUSIONS
A high NNIS together with non-infectious post-operative complications increase the risk of prosthesis infection.
Jover-Saénz
Alfredo
A
Unidad Funcional para el Control de la Infección Nosocomial, Servicio de Medicina Interna, Hospital Universitario Arnau de Vilanova, Lleida, España. ajover@arnau.scs.es
Barcenilla-Gaite
Fernando
F
Torres-Puig-Gros
Joan
J
Prats-Gispert
Laura
L
Garrido-Calvo
Sònia
S
Porcel-Pérez
José Manuel
JM
D000368:Aged; D016022:Case-Control Studies; D005260:Female; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D007720:Knee Prosthesis / Q000009:adverse effects*; D008297:Male; D016459:Prosthesis-Related Infections / Q000453:epidemiology*; D012307:Risk Factors