Continuous infusion of local anaesthetic in the control of pain following colorectal surgery

This study is testing a pain relief method where local anaesthetic is continuously delivered directly into a surgical wound after bowel surgery through a small tube. Surgeries on the large bowel (colon or rectum) often cause significant pain, and this new method aims to be a better alternative to morphine pumps or epidurals. Researchers want to find out if this technique provides good pain relief and reduces the need for stronger opioid medications. You may be eligible if: - You are 18 years of age or older - You are having open bowel surgery (colorectal surgery) - You are able to give written consent You may NOT be eligible if: - You are allergic to lignocaine or ropivacaine (local anaesthetics) - You have a true allergy to morphine - You are having an epidural or spinal infusion - You are having emergency surgery - You have cognitive impairment or a history of altered mental state Talk to your doctor about whether this trial might be right for you.