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直肠癌侵犯骶前软组织或骶骨,常引起骶骨及会阴部剧烈疼痛。由于肿瘤浸润固定,常规骶前分离切除肿瘤极为困难,且易导致局部残留或难以控制的大出血。若将肿瘤与受累骶
Rectal cancer invades the anterior tibial or tibial bones and often causes severe pain in the sacrum and perineum. Due to tumor invasion and fixation, it is extremely difficult to isolate and remove the tumor before conventional ankle brad, and it is easy to cause local residual or difficult to control bleeding. If the tumor and the affected