Role of Autologous Platelet Rich Plasma(PRP) Injection and Platelet Rich Fibrin Glue(PRFG) Interposition for Treatment of Anal Fistula

The tract fistula was cleaned with betadine 10% before PRP and PRFP were applied. Then, 2 ml of PRP was injected around the fistula into the tissue (the penetration depth in injection was 5-6 mm), and 4 ml PRFP was mixed with 1 m thrombin and interpositioned into the tract. 2 ml of PRP was injected around the fistula into the tissue (the penetration depth in injection was 5-6 mm), and 4 ml PRFP was mixed with 1 m thrombin and interpositioned into the tract. The operation time was about 20-30 minutes, the clot formation usually takes about 8 minutes, but the anesthesia was extended to 20 minutes to make sure a complete clot in the place of fistula