Related Experiment Video
Updated: May 2, 2026
Single-port Robotic Transanal Total Mesorectal Excision in a Porcine Model (Sus scrofa domesticus)
Published on: April 3, 2026
Preclinical cadaveric study of transanal robotic proctectomy with total mesorectal excision combined with
M Gomez Ruiz1, I Martin Parra1, A Calleja Iglesias1
1Department of Surgery, Hospital Universitario Marqués de Valdecilla, Santander, Spain.
Background:
Anterior resection with total mesorectal excision (TME) is the standard method of rectal cancer resection. However, this procedure remains technically difficult. A robotic transanal approach could overcome some of these limitations. An initial laboratory experience with robotic transanal TME using a new designed port on human cadavers is reported.
Methods:
The feasibility of robotic transanal TME and ideal set-up were evaluated in human cadavers. For the da Vinci Si HD system transanal access and total mesorectal excision, a specifically designed port was used.
Results:
It was possible to complete a proctectomy with transanal total mesorectal excision. The port proved to be very reliable and facilitated docking of the robotic arms.
Conclusion:
Using the robotic technology and a specifically designed port for robotic transanal access, TME was shown to be feasible and one specific preferred set-up was determined. Further clinical trials will be necessary to assess the safety and efficacy of this technique.
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