Overcoming challenges in robotic rectal resection: three approaches for splenic flexure mobilization

Category	Detail
Condition	Need for splenic flexure mobilization during robotic rectal resection
Key Mechanisms	Robotic single docking approaches to mobilize splenic flexure with vascular control and colon mobilization
Target Population	Patients undergoing robotic rectal resection, including obese patients and those with high splenic flexures
Care Setting	Operating room with robotic surgical system (X/Xi Surgical System)

Three robotic single docking approaches: medial to lateral, lateral to medial, and combined approach.
Medial to lateral approach offers better vascular visualization and is technically easier but challenging in obese patients.
Lateral to medial approach is useful in obese patients but has poorer vascular control and higher risk of splenic/colonic injury.

Assess patient anatomy and obesity status to select appropriate mobilization approach.

Use medial to lateral approach for better vascular control and ease in non-obese patients.
Consider lateral to medial approach in obese patients despite technical complexity.
Employ combined approach for high splenic flexures or difficult IMV exposure.

Monitor for splenic and colonic injuries intraoperatively, especially with lateral to medial and combined approaches.

Increased risk of splenic and colonic injuries with lateral to medial and combined approaches.
Technical difficulty in obese patients due to heavy mesentery and pancreas visualization challenges.

Patients undergoing robotic rectal resection requiring splenic flexure mobilization

Approach selection should be individualized based on patient anatomy and obesity to optimize surgical outcomes and minimize complications.

Position patient in Lloyd Davies position with 26° Trendelenburg and 20° right tilt for optimal access.
Use consistent port placement with four 8-mm ports in an oblique line 4 cm right to umbilicus plus assistant ports in right flank.
Tailor approach (medial to lateral, lateral to medial, or combined) based on patient anatomy and surgical exposure needs.
Begin medial to lateral approach at inferior mesenteric vein for vascular control and proceed to lesser sac.
In lateral to medial approach, start at paracolic recess and mobilize colon along Gerota’s fascia.
For combined approach, start medial then transition lateral to access lesser sac and complete dissection medially.

Clinical Scorecard: Strategies for Effective Splenic Flexure Mobilization in Robotic Rectal Resection: Three Distinct Approaches