Abstract: Objective To analyze the efficacy of three-cavity clearance,simple incision and drainage and incision thread drawing procedure in the treatment of patients with perianal abscess and its influence on postoperative pain,wound healing and anal function recovery.Methods 100 patients with perianal abscess in our hospital were included from June 2020 to June 2023.According to different surgical methods,they were divided into group A(n=34,three-cavity clearance),group B(n=33,simple incision and drainage) and group C(n=33,incision thread drawing procedure).The therapeutic effect and postoperative wound healing of the three groups were compared (completely shedding of carrion and wound healing).The pain status [visual analogue pain scale (VAS)] and anal function (Wexner Anal incontinence Scale score) of the 3 groups were compared at 1, 7 and 14 days after surgery.The total incidence of complications (infection, anal fistula and anal deformity) in the 3 groups were compared at 14 days after surgery.Results The total therapeutic efficacy rate in group A(94.12%) was significantly higher than that in group B(75.76%) and group C(69.70%)(P<0.05).The complete shedding of carrion and wound healing time with(15.41±2.07) d,(20.97±2.33) d in group A were significantly shorter than(17.29±2.13) d,(22.65±2.64) d in group B and(18.54±2.16) d,(23.99±2.61) d in group C(P<0.05).At 1,7 and 14 days after surgery,the VAS score and Wexner Incontinence scale score in group A were significantly lower compared with those in group B and group C(P<0.05).Within 14 days after surgery,the total incidence rate of infection,anal fistula and anal deformity in group A(8.82%) was lower compared to group B(21.21%) and group C(21.21%)(P>0.05).ConclusionThree-cavity clearance has a significant effect in the treatment of patients with perianal abscess,and it can relieve the postoperative pain,and promote the wound healing and anal function recovery.

Key words: three-cavity clearance; simple incision and drainage; incision thread drawing procedure; perianal abscess; postoperative pain; anal function