Objective To evaluate the effects of drainage by double perianastomotic proximal and distal tubes upon postoperative leaking after one-stage resection in left colonic and rectal trauma.

) METHODS: To establish the model of anus injury in the rectal position on rabbit, anti-inflammation and analgesia effect in rats and mice were observed by carrageen and hot-plate method, and inflammatory mediator PGE_2 of rat paw edema was analysed.

Analysis of diagnosis and treatment of anorectal injury with pelvic fracture;