Listeria monocytogenes is increasingly recognised as a cause of prosthetic joint infection. These infections tend to be more insidious and indolent in contrast to similar infections with Staphylococcus aureus. They can occur in patients who are immunocompromised due to malignancy or other illness or in nonimmunocompromised elderly patients. Listeria infections should not be treated with cephalosporins and prolonged antimicrobial treatment is generally advised for prosthetic joint infections. We noted a high affinity of L. monocytogenes for foreign bodies. Three of twenty-seven cases (11%) of listeriosis under the period of investigation were associated with foreign bodies (hip prosthesis, knee prosthesis and arterial graft).
R6sum~. Listeria monocytogenes est de plus en plus souvent impliqud dans des infections sur prothbses articulaires, Ces infections ont tendance ~ ~tre plus insidieuses et moins douloureuses que celles gt Staphylococcus aureus. Elles peuvent survenir chez des patients immunoddprimds en raison de cancers ou d'autres maladies, ou chez des sujets ~gds non immunoddprim(s.
Un traitement anti-microbien prolong6, autre que par cdphalosporines, est g(ndralement indiqud dans les infections sur prothkses. Sur les vingt-sept cas de listdriose recensds pendant la pdriode d' investigation, trois (11%) dtaient associds gtla prdsence de corps (trangers (prothbse de hanche, prothkse du genou et greffe artdrielle).