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经腹会阴行直肠癌根治术,由于切除范围广,骶前、会阴遗留巨大创面,以往采用创口敞开,凡士林纱布填塞或创口部分缝合,常发生感染而导致创口延期愈合或形成顽固性窦道。60年代后逐渐采取荷包缝合肛门来防止会阴部切口污染。但由于荷包缝合法封闭肛门承受压小于正常肛门的静止压,难免在腹部手术组作盆腔操作时,挤压引起肠内容泄漏污染。为克服以上缺点,1986年徐加鹤等在一次临床研究中创导用Kocher钳皮下钳闭肛管取代荷包缝合法,临床获得满意效果。为了搞清这种改良后的处理对会阴部创口污染防止的确定程度,特设计以下实验。
Transabdominal perineal radical resection of rectal cancer, due to a wide range of resection, the anterior orbital, perineum leave a huge wound, in the past using open wounds, vaseline gauze packing or suture part of the suture, often resulting in infection caused by delayed healing of the wound or the formation of intractable sinus. After the 60’s, purse-string suture anus was gradually taken to prevent contamination of the perineal incision. However, because the purse-string suturing method closes the anus to withstand the static pressure which is lower than the normal anus, it is inevitable that the abdominal operation group is used for pelvic operation, and the extrusion causes leakage of intestinal contents. In order to overcome the above shortcomings, in 1986 Xu Jiahe and other in a clinical study led to the use of Kocher clamp subcutaneous clamping anal canal instead of purse-string suture method, clinically satisfactory results. In order to ascertain the degree of certainty that this improved treatment will prevent the infection of perineal wounds, the following experiments were designed.