Anal fissure surgery is divided into anal canal internal sphincter amputation, anal canal Y-V flap plasty, and anal fissure resection. The specific operation process is as follows:
1. Internal anal sphincter amputation: firstly, find the sphincter intersphenoidal groove, make a 2cm curved incision on the lateral skin of the anal verge, then use the middle curved vascular forceps to extend into the sphincter intersphenoidal groove through the incision, so that the internal sphincter can be exposed, and then separate the lower edge of sphincter upward to the dentate line, and then finally ligate the two severed ends to stop the hemorrhage.
2. Y-V flap plasty of anal canal: firstly, cut the posterior stenosis ring-like scar with electric knife, use the right index finger to insert into the upper part of the stenosis ring, make clear the degree and range of stenosis and then separate the scar on both sides of the incision, and then make a V-shape incision on the outer end of the incision, so that the trauma surface is in the form of a Y-shape, and then free Y-shaped full-layered skin flap.
After sufficient separation, the tip of the flap is pulled to the tip of the incision, and finally the mucosa and skin are closed intermittently.
3. Anal fissure resection: first dilate the anus, use hemostatic forceps to pull up the anal fissure below the paracentesis of about 0.5-1cm, use scissors to cut the skin, separate the fissure from the tissue below it, and then cut it near the dentate line, observe the position of the dentate line, which should not be exceeded, and then resect the root of fissure with a No.10 or No.7 silk thread.
Finally, oil gauze is applied to the incision, and a pressure bandage is applied using tartan gauze.
It is recommended that after the phenomenon of anal fissure, patients go to the hospital in time, according to their own situation, under the guidance of professional doctors, choose the appropriate method of treatment.