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Transitioning From Laparoscopic to Robotic Bariatric Surgery: A Surgeon-Centered Analytic Approach
Alexander Bonte1, Ara Amirkhanian1, Valerie Halpin1
1Legacy Health, Portland, United States.
Obesity Surgery
|May 22, 2026
Summary
Robotic bariatric surgery adoption increased significantly, but outcomes improved due to surgeon experience, not the robotic platform itself. Experienced surgeons showed similar complication rates whether using laparoscopic or robotic techniques.
Area of Science:
- Minimally Invasive Surgery
- Surgical Technology
- Bariatric Surgery Outcomes
Background:
- Robotic assistance is increasingly adopted in bariatric surgery by experienced laparoscopic surgeons.
- Existing pooled data does not clarify if robotic adoption improves individual surgeon outcomes.
Purpose of the Study:
- To evaluate the independent effect of robotic adoption on bariatric surgery outcomes.
- To compare observed robotic outcomes with expected outcomes based on surgeons' laparoscopic learning curves.
Main Methods:
- Retrospective cohort study of 22,914 bariatric procedures across 13 centers (2011-2024).
- Modeled surgeon-specific laparoscopic learning curves to predict outcomes for robotic cases.
- Compared actual robotic outcomes against predicted laparoscopic outcomes to isolate robotic platform effect.
Main Results:
- Robotic utilization increased from 5.6% to 66.2% between 2011 and 2024.
- Adjusted analysis showed no significant difference in surgical complications, systemic complications, 30-day readmissions, or length of stay after robotic adoption.
- Observed improvements in outcomes post-robotic adoption were comparable to expected improvements from continued laparoscopic experience.
Conclusions:
- Improvements in bariatric surgery outcomes among experienced surgeons adopting robotics are primarily due to continued skill maturation.
- The robotic platform itself did not demonstrate an independent benefit in reducing complications or readmissions in this cohort.
