Laparoscopic surgery for colorectal cancer has been shown to be less invasive than open surgery, while maintaining a similar safety level in many clinical trials. Furthermore, there are no significant differences between laparoscopic surgery and open surgery with respect to the long-term outcomes in colon cancer. Thus, laparoscopic surgery has been accepted as one of the standard treatments for colon cancer. In addition, laparoscopic surgery has also achieved favorable outcomes in the treatments of rectal cancer, with many reports showing long-term outcomes comparable to those of open surgery. Furthermore, the magnification in laparoscopy improves visualization in the pelvic cavity and facilitates precise manipulation, as well as providing an excellent educational opportunity. Laparoscopic surgery may be an ideal approach for the treatment of rectal cancer and colon cancer. Recently, two trials showed that, among patients with advanced rectal cancer, the use of laparoscopic surgery as compared with open surgery confirmed to meet the criterion for non-inferiority for long-term outcomes. In addition, new techniques such as single-port and robotic surgery have been introduced for laparoscopic surgery in recent years.
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