Intraoperative Neuromonitoring of Pelvic Autonomous Nerve Plexus During Total Mesorectal Excision

This study is evaluating whether monitoring the nerves in the pelvis during rectal cancer surgery (total mesorectal excision, or TME) using a nerve monitoring technique helps surgeons preserve nerve function. Damage to these pelvic nerves can cause bladder or sexual problems after surgery, and this study aims to understand whether real-time monitoring reduces these complications. **You may be eligible if...** - You have been diagnosed with rectal cancer confirmed by biopsy - You are scheduled to undergo full rectal surgery (TME) - You are under 90 years old - You have signed informed consent **You may NOT be eligible if...** - Your surgery is an emergency - You have a pacemaker - Your surgery is a partial (not full) mesorectal excision - You have a systemic infection or sepsis - You have a physical or mental condition that would affect your participation - You are pregnant or nursing - There is insufficient information about your baseline bladder and sexual function before surgery Talk to your doctor to see if this trial is right for you.