Mayo PJI Risk Score May Help Identify Patients at Risk of Joint Infections

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The Mayo prosthetic joint infection risk score may help physicians identify patients who are at risk of joint infections and develop prevention strategies for patients who undergo total knee or hip arthroplasties, according to a study published in Infection Control and Hospital Epidemiology.


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For the study, researchers assessed 339 cases and 339 controls to determine a baseline risk score for prosthetic joint infections and a one-month post-surgery risk score. The baseline Mayo prosthetic joint infection risk score determined several risk factors, including body mass index, prior other operation on the index joint, prior arthroplasty, immunosuppression, ASA score and procedure direction. The one-month risk score demonstrated the same risk factors, with the addition of postoperative wound drainage.

The researchers concluded use of the prosthetic joint infection risk score may help healthcare providers determine which patients are in need of interventions to prevent this type of infection.

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