Postoperative complications,such as wound infection,laceration,anastomotic leakage,colonic necrosis and changes in WBC,RBC,BPC,ALT and BUN before and after operation were observed.

• 统计两组伤口感染、裂开、吻合口瘘和造瘘口坏死回缩的发生率及手术前后WBC、RBC、BPC、ALT和BUN的变化。