To consider the functional and oncological effects of rectal cancer underwent total mesorectal excision(TME) or three space dissection(TSD) with pelvic autonomic nerve preservation(PANP).

• [摘要]目的： 探讨中晚期直肠癌病人应用TME技术、保留植物神经的TSD技术后，其生理功能及肿瘤学上所受到的影响。