“…Fistulotomy is the most common procedure performed for anal fistulas but fistulotomy is contraindicated in complex fistulas as the risk of sphincter injury is high[ 2 ]. Therefore, several new sphincter-sparing procedures have been developed over the last two decades like video-assisted anal fistula treatment (VAAFT)[ 3 - 7 ], anal fistula plug (AFP)[ 8 , 9 ], over the scope clip (OTSC)[ 10 - 12 ], fistula laser treatment (FiLac)[ 2 ], stem cells[ 13 , 14 ], fixcision[ 15 ], fibrin glue[ 16 - 18 ], ligation of intersphincteric fistula tract (LIFT)[ 19 - 25 ], Bio-LIFT[ 26 ] and transanal opening of intersphincteric space (TROPIS)[ 27 - 31 ].…”