Multiquadrant robotic colorectal surgery: the da Vinci Xi vs Si comparison

Area of Science:

• Minimally Invasive Surgery
• Surgical Robotics
• Colorectal Surgery

Background:

• The da Vinci Si Surgical System has limitations in robotic arm articulation and multi-quadrant access.
• The da Vinci Xi Surgical System was developed to overcome these predecessor limitations.

Purpose of the Study:

• To compare the da Vinci Xi and da Vinci Si platforms in multi-quadrant colorectal surgery.
• To evaluate operative variables and patient outcomes between the two robotic systems.

Main Methods:

• A retrospective comparison of 44 da Vinci Si cases and 26 da Vinci Xi cases undergoing sigmoidectomy or low anterior resection.
• Descriptive statistics were used to compare patient demographics, operative variables, and postoperative outcomes.

Main Results:

• The da Vinci Xi platform enabled more frequent splenic flexure mobilization during both sigmoidectomy (50% vs. 15.4%) and low anterior resection (60% vs. 29%).
• No significant differences were observed in operative time, blood loss, length of stay, or overall complication rates between the da Vinci Xi and Si groups.

Conclusions:

• The da Vinci Xi facilitates more frequent single-dock, multi-quadrant robotic colorectal surgery.
• The da Vinci Xi offers an easier alternative for complex procedures compared to the da Vinci Si, without compromising safety or efficiency.