- Design
- Systematic review and meta-analysis of four randomised trials
- Population
- 482 patients having laparoscopic or robotic-assisted inguinal hernia repair
- Primary outcome
- Surgeon task load, ergonomics and operative time
- Effect
- Operative time MD 17.14 min (95% CI -3.22 to 37.49); task load MD -4.50 (-16.78 to 7.78); complications OR 0.89 (0.42 to 1.90)
A meta-analysis of four randomised trials with 482 patients compared robotic-assisted and laparoscopic inguinal hernia repair, with a focus on surgeon workload and ergonomics. Operative time differed in every trial, longer with robotic assistance in three and shorter in one, giving a non-significant pooled difference of 17 minutes (95% CI -3.22 to 37.49).
One study found better ergonomics with the robot and another found them comparable. The pooled task-load difference slightly favoured robotic assistance but was not significant (mean difference -4.50, 95% CI -16.78 to 7.78). Complications did not differ (odds ratio 0.89, 95% CI 0.42 to 1.90).
The authors conclude that patient outcomes were comparable and that there is no evidence of a significant task-load or ergonomic benefit. With four trials and varied surgeon experience, a modest benefit cannot be ruled out.
- Operative time and complications did not differ significantly.
- Surgeon task load varied widely between trials.
- Only two trials reported ergonomics and they disagreed.
- Four trials is a small base, and surgeon experience varied.
- Robotic hernia repair is not shown to be better for the surgeon or the patient.
Why it matters
It tests a common claim for robotic platforms, ergonomic advantage, against randomised data.
Don't overread it
Absence of a significant difference in four small trials is not proof the approaches are equivalent.
The statistics, in plain English
All intervals cross the no-difference line (0 for mean differences, 1 for odds ratios), so the data are compatible with no effect, a benefit or a harm. The imprecision comes from few trials rather than proof of equivalence.
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