---
title: Is robotic gallbladder surgery better than keyhole surgery?
publication: Medical Insights Korea
section: faq
category: Gallbladder
canonical_url: https://medicalinsightskorea.com/faq/robotic-or-laparoscopic-gallbladder-surgery
author: David Seo
published: 2026-09-21T11:00:00+09:00
modified: 2026-09-21T11:00:00+09:00
content_type: reference
license: Quotation permitted with attribution to Medical Insights Korea and a link to the canonical URL.
---

# Is robotic gallbladder surgery better than keyhole surgery?

Two reviews published weeks apart appear to contradict each other on the injury that matters most. Read the confidence intervals and they agree — which is worse news than a contradiction.

## Answer

The robotic approach reliably reduces one thing, conversion to open surgery, and reliably costs about twice as much, but on bile duct injury the evidence does not support calling it better: one meta-analysis of 1,770,300 patients found no significant difference (odds ratio 1.42, 95 percent confidence interval 0.43 to 4.66) while another of more than 412,000 found injury in 0.72 percent of robotic against 0.23 percent of laparoscopic cases (relative risk 3.12, 2.34 to 3.91) — and because the first interval contains the second estimate, the two are compatible, meaning the reassuring review was imprecise rather than reassuring.

## Key takeaways

- A meta-analysis of 25 studies covering 1,770,300 patients found no statistically significant difference in major bile duct injury between robotic and laparoscopic cholecystectomy: odds ratio 1.42, 95 percent confidence interval 0.43 to 4.66.
- A meta-analysis of 38 studies covering more than 412,000 patients found bile duct injury in 0.72 percent of robotic against 0.23 percent of laparoscopic cases, a relative risk of 3.12 (2.34 to 3.91).
- These findings are compatible rather than contradictory: the first review's confidence interval contains the second's point estimate, so the larger analysis was imprecise on this outcome, not reassuring about it.
- Both reviews agree robotic surgery reduces conversion to open surgery (odds ratios 0.35 and 0.44) and costs roughly 5,000 to 6,000 US dollars per case against 2,000 to 3,000.
- In 2,514 laparoscopic cholecystectomies across 18 Korean academic institutions, bile duct injury occurred in 0.7 percent, and in an Irish national cohort of 34 such injuries, 76.4 percent needed a bile duct reconstruction, one needed a liver transplant and three patients died.

## Full article

This question usually gets answered by whichever study the answerer read. The honest version starts by admitting the two largest reviews look like they disagree, and then explains why they do not.

### The two findings

**Bile duct injury, robotic versus laparoscopic cholecystectomy, two meta-analyses**

| Review | Patients | Finding |
| --- | --- | --- |
| 25 studies | 1,770,300 | OR 1.42 (0.43–4.66), not significant |
| 38 studies | 412,000+ | 0.72% vs 0.23%, RR 3.12 (2.34–3.91) |

Read as headlines, one says no difference and the other says three times the risk, and the larger one appears to win. That reading is wrong, and the reason is in the brackets.

> **Why the two results agree**  
> The first review's confidence interval runs from 0.43 to 4.66. The second review's estimate — a relative risk of about 3 — sits inside that range. An interval that wide does not rule a tripling out; it fails to rule anything out. "No statistically significant difference" here means the analysis could not tell the difference between half the risk and four and a half times it. The second review, with a narrower interval, could. The larger study was not more reassuring, it was less precise.

This is the single most common way a reader is misled by a meta-analysis, and it is not a subtlety. A wide interval around no effect and a narrow interval around a real effect are different claims, and only one of them is evidence of safety.

### What both reviews do agree on

- Robotic surgery reduces conversion to open surgery — odds ratios of 0.35 and 0.44. Fewer operations that start keyhole end up as a full abdominal incision.
- It costs roughly 5,000 to 6,000 US dollars per case against 2,000 to 3,000 for laparoscopic.
- The second review's own authors caution that learning-curve effects and coding variability in administrative databases may explain part of the injury difference.

A Korean single-centre study using propensity matching on 340 pairs found single-port robotic cholecystectomy comparable in safety to conventional laparoscopic surgery, with a shorter operative time of 40.0 against 45.0 minutes. It is a well-conducted study of one centre's practice and it is not powered to detect an event that happens to fewer than one patient in a hundred.

### What is actually at stake

Bile duct injury is rare and it is the reason this comparison matters at all. Across 2,514 laparoscopic cholecystectomies for benign disease at 18 Korean academic institutions, 0.7 percent sustained one.

**76.4%** — of 34 patients treated for iatrogenic bile duct injury in an Irish national cohort required Roux-en-Y hepaticojejunostomy; 29.4 percent required reoperation, one required a liver transplant and three died in the perioperative period  
_Source: Mullen C et al., Annals of Hepato-Biliary-Pancreatic Surgery, 2025_

That is why a difference between 0.23 and 0.72 percent is worth arguing about even though both numbers are small. The injury is uncommon and what follows it is not minor.

### The variable neither review measures

The technique that prevents these injuries is the critical view of safety: exposing the structures until the anatomy is unambiguous before anything is cut. A nationwide video review of 513 resident-performed operations scored how often it was actually achieved.

**Critical view of safety achieved, nationwide video-based review**

| Setting | Achieved |
| --- | --- |
| All resident-performed cases | 61.2% |
| Emergency cases | 48.2% |

In roughly four operations in ten the step designed to prevent bile duct injury was not completed, and in emergencies it was more than half. No robot supplies that, and no meta-analysis of robots against laparoscopes measures it.

### What this does not say

1. It does not say robotic cholecystectomy causes bile duct injury. The higher rate comes from observational and administrative data, where the robot is newer, its early cases sit on a learning curve, and coding differs between the two procedures.
2. It does not say the two approaches are equivalent either. That is the claim the evidence fails to support, and the distinction is the whole point.
3. Reduced conversion to open surgery is a real benefit and matters most to the patients most likely to need it, which the pooled figures do not identify.
4. The cost figures are American and do not describe what either operation costs a patient in Korea.
5. The critical view of safety review covered resident-performed cases specifically, which is not the same as all surgery.
6. None of this addresses whether the gallbladder should come out, which for a symptomless gallstone is the prior question.

The defensible summary is that the robot demonstrably reduces conversion and demonstrably costs more, that the evidence on the injury that matters most is compatible with anything from a small benefit to a tripling of risk, and that the strongest determinant of whether this operation injures a bile duct is a step the surgeon either completes or does not.

**The rest of the gallbladder evidence**

- [How risky is gallbladder removal surgery?](https://medicalinsightskorea.com/faq/how-risky-is-gallbladder-surgery) — The numbers behind the consent form.
- [Do I need surgery if I have gallstones but no symptoms?](https://medicalinsightskorea.com/faq/asymptomatic-gallstones-need-surgery) — The prior question to all of this.
- [Can you live normally without a gallbladder?](https://medicalinsightskorea.com/faq/life-without-a-gallbladder) — What happens after either operation.

## Sources

- Qadri M, Habib E, Ghawas AA, Aftab M, Jamshed A, Adnan M, et al. Clinical outcomes of laparoscopic versus robotic cholecystectomy approaches: a systematic review and GRADE assessment meta-analysis. Journal of Robotic Surgery 2025;20(1):61. doi:10.1007/s11701-025-03022-9. PMID:41354898. https://doi.org/10.1007/s11701-025-03022-9
- Coco D, Leanza S. Comparative effectiveness, safety, and cost of laparoscopic versus robotic minimally invasive cholecystectomy: a systematic review and meta-analysis. Journal of Robotic Surgery 2026;20(1):177. doi:10.1007/s11701-025-02863-8. PMID:41540300. https://doi.org/10.1007/s11701-025-02863-8
- Choi YJ, Shin YL, Jeon SM, Yu S, Jo HS, Kim DS, Yu YD. Safety and feasibility of robotic single-port (SP) cholecystectomy compared to conventional laparoscopic cholecystectomy: a propensity score matching analysis. Surgical Endoscopy 2026;40(7):5626-5633. doi:10.1007/s00464-026-12723-7. PMID:42301445. https://doi.org/10.1007/s00464-026-12723-7
- Lee H, Han IW, Choi JE, Lee HK. Surgical risk calculator development for postoperative outcomes after laparoscopic cholecystectomy: a multicenter prospective cohort study. Annals of Surgical Treatment and Research 2025;108(6):352-361. doi:10.4174/astr.2025.108.6.352. PMID:40503269. https://doi.org/10.4174/astr.2025.108.6.352
- Mullen C, O'Connell RM, Walsh J, Fullard A, Hardy N, O'Sullivan A, et al. Patient outcomes and healthcare costs following iatrogenic bile duct injuries: A national multicentre retrospective cohort study. Annals of Hepato-Biliary-Pancreatic Surgery 2025;29(4):441-448. doi:10.14701/ahbps.25-141. PMID:41198047. https://doi.org/10.14701/ahbps.25-141
- Aguilera M, Becker B, Castiglioni E, Sanhueza D, Rui-Wamba J, Grunauer M, et al. Critical view of safety in laparoscopic cholecystectomy: a nationwide video-based benchmark of resident-performed cases. Surgical Endoscopy 2026. doi:10.1007/s00464-026-13243-0. PMID:42547635. https://doi.org/10.1007/s00464-026-13243-0

## Citation

David Seo (2026). "Is robotic gallbladder surgery better than keyhole surgery?". Medical Insights Korea. https://medicalinsightskorea.com/faq/robotic-or-laparoscopic-gallbladder-surgery

Retrieved from https://medicalinsightskorea.com/faq/robotic-or-laparoscopic-gallbladder-surgery