Comparison number of lymphnode resection in open colectomy vs laparoscopy in colorectal cancer

Intervention 1: Intervention group: Evaluation of the number of lymph nodes removed in open surgery in patient with colorectal cancer. Intervention 2: Intervention group: Evaluation of the number of lymph nodes removed in laparascopic surgery in patient with colorectal cancer.
Primary outcome(s): Number of lymphnode resection in surgery. Timepoint: From the diagnosis of colorectal cancer and time of surgery performed. Method of measurement: Lymph node count in pathology.
Study Design: Randomization: Not randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Factorial, Purpose: Treatment.