Patients scheduled for elective laparoscopic colon cancer surgery at participating institutions are eligible if they meet the following inclusion criteria: (i) age ≥ 20 years; (ii) presence of pathologically confirmed colon cancer (adenocarcinoma, mucinous carcinoma, or signet ring cell carcinoma); and (iii) ability to understand verbal explanations, read instruction documents, and sign informed consent forms.
Patients meeting at least one of the following criteria are ineligible and were excluded from this trial: planned open surgery; expected incision length of < 1 or ≥ 10 cm; rectal cancer (lower border of tumour located within ≥ 15 cm from the anal verge); planned small incision outside of the umbilical area; palliative surgery for stage IV tumours; planned protective or permanent diversion; emergent surgery; current unhealed wound, fracture, peptic ulcer, or intraabdominal abscess; history of incisional hernia; and participation in any other interventional clinical trial within 6 months.
Patients meeting at least one of the following criteria are ineligible and were excluded from this trial: planned open surgery; expected incision length of < 1 or ≥ 10 cm; rectal cancer (lower border of tumour located within ≥ 15 cm from the anal verge); planned small incision outside of the umbilical area; palliative surgery for stage IV tumours; planned protective or permanent diversion; emergent surgery; current unhealed wound, fracture, peptic ulcer, or intraabdominal abscess; history of incisional hernia; and participation in any other interventional clinical trial within 6 months.
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