Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12893-018-0411-6/MediaObjects/12893_2018_411_Fig2_HTML.png)
Intra-operative iodoform gauze filled the anus, a negative pressure dressing covered the wound and the anus, and a negative sucker was placed on the anus. While using the NPWT, the patient did not defecate but passed gas normally
Intra-operative iodoform gauze filled the anus, a negative pressure dressing covered the wound and the anus, and a negative sucker was placed on the anus. While using the NPWT, the patient did not defecate but passed gas normally