Abstract
We conducted a prospective cohort study in order to determine whether suction drain specimen cultures from orthopaedic surgery predicted an early wound infection. We included 218 consecutive clean orthopaedic operations requiring drains in one unit over a period of 1 year. The suction drain tip, drain fluid and wound discharge specimens were cultured, and the surgical wound was followed up for 3 months. There were six deep and two superficial wound infections. Wound infection was significantly related to positive suction tip culture but not to positive drain fluid culture. Following our methodology for culture, a positive drain tip culture predicts wound infection in 50% and a negative culture virtually excludes the possibility of a deep infection.
Résumé
Nous avons conduit prospectivement une étude de cohorte pour déterminer si les cultures d’un échantillon du produit de drainage aspiratif peuvent être prédictives précocément d’une infection. Nous avons inclus 218 opérations orthopédiques propres consécutives, exigeant un drainage, sur une période d’une année. L’extrémité du drain, le liquide de drainage, et des prélévements opératoires étaient mis en culture et la cicatrice chirurgicale surveillée pendant 3 mois. Il y avaient 2 infections superficielles et 6 pronfondes. L’infection était en rapport significatif avec la culture du drain mais sans rapport avec celle du liquide de drainage. En suivant notre méthodologie, une culture positive de l’extrémité du drain prédit l’infection de la blessure dans 50% et une culture négative exclut la possibilité d’une infection profonde.
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