Strategies for Effective Splenic Flexure Mobilization in Robotic Rectal Resection
Overview
This report outlines three distinct robotic approaches for splenic flexure mobilization during rectal resection using single docking. Each technique offers specific advantages and challenges based on patient anatomy and surgical goals.
Background
Splenic flexure mobilization is a critical and technically challenging step in rectal resection, particularly when performed with robotic assistance using single docking. The limited range of motion of robotic arms necessitates careful selection of surgical approach. Proper mobilization facilitates oncologic clearance and safe anastomosis. Tailoring the approach to patient anatomy can optimize outcomes and minimize complications.
Data Highlights
All three approaches utilize the Lloyd Davies patient position with the operating table tilted 26° Trendelenburg and 20° right tilt. Port placement is consistent across techniques, involving four 8-mm robotic ports positioned obliquely 4 cm right of the umbilicus, plus 12- and 5-mm assistant ports in the right flank. The target area is fixed in the left iliac region.
Key Findings
The medial to lateral approach provides superior vascular visualization and control, beginning at the inferior mesenteric vein (IMV) and proceeding above the pancreas to enter the lesser sac; it is technically easier but challenging in obese patients.
The lateral to medial approach is advantageous in obese patients but is technically more complex due to robotic positioning and carries increased risk of splenic and colonic injury with less vascular control.
The combined approach merges medial to lateral and lateral to medial techniques, beneficial for high splenic flexures or difficult IMV exposure, but with a higher risk of injury.
All approaches involve ligation of the IMV as a key step to complete mobilization.
Robotic single docking for splenic flexure mobilization is feasible and can be adapted based on patient anatomy and surgical needs.
Clinical Implications
Surgeons should select the splenic flexure mobilization approach based on patient body habitus and anatomical considerations to optimize safety and efficacy. The medial to lateral approach is preferred for better vascular control, while the lateral to medial approach may be reserved for obese patients. The combined technique offers flexibility for complex cases but requires caution due to increased injury risk.
Conclusion
Robotic splenic flexure mobilization using single docking is a viable technique with multiple approaches tailored to patient anatomy. Understanding the advantages and limitations of each method can guide surgical planning and improve outcomes.
References
Reeltime Surgery -- Strategies for Effective Splenic Flexure Mobilization in Robotic Rectal Resection
