随着直肠癌全系膜切除术(TME)及术前新辅助放化疗的应用,直肠癌术后的局部复发率呈现显著下降趋势义献~([1])显示,直肠癌的局部复发率由既往的20%~30%下降至5%~10%。局部复发直肠癌(locally recurrent rectal cancer,LRRC)患者若未经治疗,常导:致难治性骶尾部及下肢疼痛、肿瘤破溃感染、便血、排尿/排便困难等严重症状,其中位,生存期仅3~8个月~([2])。单纯放疗和(或)联合化 With the application of total mesorectal excision (TME) and preoperative neoadjuvant chemoradiation for rectal cancer, the local recurrence rate of rectal cancer has shown a significant downward trend (Yang et al. [1]), which shows the local recurrence rate of rectal cancer. From the previous 20% to 30% to 5% to 10%. Patients with local recurrent rectal cancer (LRRC), if left untreated, often experience severe symptoms such as pain in the affected tail and lower extremities, tumor rupture and infection, blood in the stool, difficulty in urinating/defecation, etc. Only 3~8 months~([2]). Radiotherapy alone and/or combination