Infección asociada a reconstrucción del ligamento cruzado anterior. Intervención multimodal para reducir la tasa de infección

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Introduction: As the international rate of surgical site infection (SSI) associated with anterior cruciate ligament reconstruction (ACLR) ranges between 0.14% and 5.7%, the national rate reported by VIHDA is 1.06%. Although these rates are very low, when SSIs occur cause significant morbidity. Due to an increase in the incidence of SSI in ACLR observed in our hospital, we decided to implement a multimodal intervention to reduce this rate. Objective: To evaluate the impact of a multimodal intervention to prevent SSIs associated with ACLR in a University Hospital. Methods: Through a quasi-experimental study (before / after) were prospectively included all patients undergoing ACLR , between May 2012 and Jan-2014 (intervention period) after the implementation of the following preventive measures : screening for MRSA colonization, pre-operative bathing with chlorhexidine 2%; setting of pre-operative shaving; surgical hand hygiene with alcohol-based products; skin antisepsis with 2% chlorhexidine alcoholic; setting surgical prophylaxis and reducing the time of environmental exposure of the tendon. As a control, a retrospective cohort of patients undergoing ACLR between Jan-2011 and Feb-2012 (pre-intervention period) was used. During the intervention in the operating room and before implantation the tendons were culture. Results: The pre-intervention period rate of SSI was 5.50% (11/200). In the intervention period the rate was reduced to 2.01% (6/298) (difference 3.49% ; 95% CI 0.23% to 6.74%; p <0.05). This difference was due only to surgeries with hamstrings 42.2% (122/289) of the grafts had positive cultures before implantation. Of the 6 patients that registered SSI intervention, there were no correlation between this germ infection and the one before implantation. Conclusions: The implementation of a multimodal approach was effective in reducing the rate of SSI in ACLR when hamstring grafts were used. While nearly half of the tendons had positive cultures before implantation, there was no correlation with fluid cultures in infected patients.

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