This study is a matched case-control study. Control patients will be matched to ERAS cases in a 1:1:1 ratio (laparoscopic surgery with ERAS protocol : laparoscopic surgery without ERAS protocol : open surgery).
This is a retrospective study to compare postoperative pain intensity in patients going laparoscopic colorectal surgery with Enhanced Recovery after Surgery (ERAS), without ERAS and open colorectal surgery.