Comparative analysis of the short and medium-term efficacy of the Da Vinci robot versus laparoscopic total mesangectomy for rectal cancer

Figure 1 The surgical procedure for the Da Vinci robot diagram. A: The left colic artery was preserved, and the lymph nodes in group 253 were dissected; B: Free retrorectal space; C: Free anterior rectal space; D: Hiatal ligament; E: The puborectal muscle was redrawn to free the sphincter space through the abdominal path; F: Anterior wall venous plexus; G: Complete abdominal path intersphincter separation; H: Free the sphincter space via the anal route; I: Colo-anal end-to-end anastomosis.

Figure 2 Comparison of the 3-year disease-free survival rate and overall survival rate between laparoscopic mesangectomy and robotic mesangectomy. A: 3-year disease-free survival rate; B: 3-year overall survival rate. L-TME: Laparoscopic total mesorectal resection; R-TME: Robotic total mesorectal resection.