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Incorporating antibiotics into platelet‐rich fibrin: A novel antibiotics slow‐release biological device

2019; Wiley; Volume: 46; Issue: 2 Linguagem: Inglês

10.1111/jcpe.13063

1600-051X

David Polak, Navit Clemer‐Shamai, Lior Shapira,

Hemostasis and retained surgical items

Abstract Background The aim of the present in vitro study was to explore the possibility of using platelet‐rich fibrin ( PRF ) as a local sustained released device for antibiotics. Materials and methods Platelet‐rich fibrin was prepared with the addition of antibiotics (5 mg/ml metronidazole; 150 mg/ml clindamycin; 1 mU/ml penicillin) or saline prior to centrifugation, while collagen sponges served as control. PRF s anti‐bacterial properties were examined in an anti‐biogram assay with Staphylococcus aureus or Fusobacterium nucleatum at different time intervals after PRF preparation. Results The addition of antibiotic solutions at volumes of 2 or 1 ml led to significant changes in PRF 's physical properties, while the addition of 0.5 ml solution did not. PRF with saline showed minor anti‐bacterial activity, while all PRF s with antibiotics showed significant anti‐bacterial activity ( p < 0.05). No differences were observed between raw (clot) and pressed (membrane) forms of PRF . Collagen sponges with and without antibiotics showed similar results to PRF . PRF and collagen sponges with antibiotics preserved their anti‐bacterial properties 4 days after preparation. Conclusions Platelet‐rich fibrin incorporated with antibiotics showed long‐term anti‐bacterial effect against F. nucleatum and S. aureus . This modified PRF preparation may be used to reduce the risk of post‐operative infection in addition to the beneficial healing properties of PRF .