Introduction: Intraosseous (IO) vancomycin prophylaxis in total knee arthroplasty has been shown to increase local vancomycin concentration, lower systemic adverse effect, help prevent periprosthetic joint (PJI) infection, especially MRSA (methicillin-resistant Staphylococcus aureus).
Materials and Methods: A retrospective review of 1279 patients underwent total knee arthroplasty at Tam Anh HCM hospital (01/2022-05/2024) with at least 90 days follow-up. There were 795 patients in non-IO group and 484 patients in IO group. The IO group received a 500mg vancomycin mixed with 120ml NaCl 0.9%, injected in proximal tibia after tourniquet, before skin incision. Both groups received prophylaxis cephalosporin and same post-operative treatments.
Results: There are 11 PJI (1.38 %) in non-IO group and 1 PJI (0.2%, p=0.037) in IO group. There were no systemic adverse events in IO group, local vancomycin concentrations were high at beginning and before closure of the surgery.
Conclusions: Intraosseous vancomycin prophylaxis provided a safe and effective, simple way to prevent periprosthetic joint infection in total knee arthroplasty.