Laparoscopic versus open resection in locally advanced rectal cancers: a propensity matched analysis of oncological and short‐term outcomes

Aim The aim was to compare oncological and short‐term outcomes between open and laparoscopic surgery in locally advanced rectal cancers. Methods It is a retrospective analysis conducted in a high volume tertiary centre. Matching was carried out for nine variables, including preoperative factors, neoadjuvant treatment and sphincter preservation. Results Both the open and laparoscopic surgery arms had 239 patients each. The distributions of pretreatment MRI T3, T4, circumferential resection margin (CRM) positive tumours, neoadjuvant long‐course chemoradiation and sphincter preservation were 80.3%, 13.6%, 50%, 89% and 56.4% respectively. The mean number of nodes harvested (12.9 vs. 12.7, P = 0.716), pathological CRM positivity (6.3% in open vs. 5.4% in laparoscopic, P = 0.697) and distal resection margins were similar. The mean blood loss was higher in open surgeries (910 ml vs. 349 ml, P