Fistula in ano. Complecation is there?

Hi Iam Faisal. 23yrs old. Iam from palakkad Ottappalam. MRI Fistulogram report Clinical history : C/o swelling and pain in perianal region Findings: There about a 4.4 cm and 6.3 mm thick interspincteric fistula tract in right ischioanal fossa at 6-7 o'clock position with internal opening at 9 O'Clock position in lower anal canal and external opening in right paramedian perinenum. From internal opening the tract coursing slightly upward and than downward posteriorly to open externally in right paramedian perinenum. This tract appear hyperintense on STIR AND T2W images and shows diffusion restriction. No secondary tract or perianal abscess is noted. Sr Which type fistula? This is fistula is low anal or high anal fistula? Which type of surgery is best in this case?? Note : fistulectomy surgery is after complecation is there?? Please answer as soon as possible Thank you