Modified tailored internal sphincterotomy had a better wound healing due to its good drainage, but as only a partial internal sphincter been dissected, it contains a little recurrence rate.

• 而试验组术后引流通畅,伤口愈合效果较好,但相对由于切开的仅仅是部分内括约肌,所以还存在复发的可能性。