The Clinic Research Of Undermining Dissection Fistula Joint Thread-drawing Drain Of Internal Opening On High Complex Anal Fistula

Objective: To study the clinical efficacy of fistula undermining dissection combine with thread-drawing drain of internal opening on high complex anal fistula by comparing with the therapy of low incision and suture joint high thread-drawing.Methods: Forty hospitalized cases meeting criteria were randomly divided into experimental group(n=20)and the control group(n=20),The experimental group received undermining dissection fistula joint thread-drawing drain of internal opening while the control group received low incision and suture joint high thread-drawing.To observe the curative effects,recurrence rate postoperative complications,anal function and in follow-up period in two groups.Result: The two groups were all clinical cured well(both are 100%),and no recurrence was found in follow-up six month(both are 0%).There was no statistical difference in terms of cure rate and recurrence rate(P> 0.05).There was no statistical difference in terms of urinary retention,infection,wound healing time,anal incontience(P>0.05).However,there was statistical difference in terms of postoperative pain in first day and seventh day(P<0.05),the experimental group tend to suffer less pain than the control group.There was statistical difference in terms of ARP,AMCP and RRP(P<0.05).Conclusion: Compared with the therapy of low incision and suture joint high thread-drawing.Undermining dissection fistula joint thread-drawing drain of internal opening on high complex anal fistula have the similar cure rate.But it may has less postoperative pain and more protection of anal function and anorectal muscles.