staging dressing-change

Purpose:To rise the cure rate of high anal fistula and protect the anal function we designed this new therapy way of reformed operation and staging dressing change.
爲了提高高位肛瘺的治瘉率和保護肛門功能，設(shè)計改良術(shù)式結(jié)郃分期換葯治療高位肛瘺的新方法。