Abstract:

Objective This study tried to observe and evaluate the pros and cons of radial incision com⁃bined with tunnel⁃type floating line drainage for the treatment of high posterior ankle fistula and its clinical efficacy.Methods A total of 80 inpatients meeting the inclusion criteria were collected. According to the order of admis⁃sion，they were divided into a radial incision combined with tunnel⁃type floating thread drainage group（observationgroup，40 cases）and a curved suture（thread hanging）internal drainage group（control group，40 cases）. Thekey indicators of the two groups of cases including operation time，intraoperative blood loss，postoperative pain，etc.，and adverse reaction indicators such as urination disorder，anal function and prognosis follow⁃up indicatorswere all observed and analyzed. Results The observation group was better than the control group in terms of opera⁃tion time，intraoperative blood loss，pain during the 2～4 days after operation and urination disorder（P < 0.05）.The postoperative wound infection rates，anal function，healing time and other aspects，were all no significantdifference between the two groups（P > 0.05）. Conclusion Radial incision combined with tunnel⁃type floatingthread drainage has obvious advantages. The advantages included strong operability，reduction of postoperativeadverse reactions，and better protection of the anal sphincter function. It was an excellent operation for the treatmentof high posterior iron fistula formula.

Key words: radial, tunnel?type, floating line drainage, posterior ankle fistula, clinical study