Transanal intersphincteric approach combined with Kangfuxin enema for treating anastomotic leakage after low anterior resection: Three case reports

Figure 1 Schematic drawing of the transanal opening of the intersphincteric space procedures. A: Intersphincteric space infection in anastomotic leakage; B: The transanal opening of the intersphincteric space technique opens the internal orifice of the fistula and adequately drains the intersphincteric space using a transanal approach.