Background
Hybrid surgical instruments contain both single-use and reusable components, potentially bringing together advantages from both approaches.
Methods
We used Life Cycle Assessment to evaluate environmental impact of hybrid laparoscopic clip appliers, scissors and ports used for a laparoscopic cholecystectomy, comparing these with single-use equivalents. We modelled this using SimaPro to determine 18 midpoint environmental impacts including the carbon footprint, and three aggregated endpoint impacts. We also conducted life cycle cost analysis, taking into account unit cost, decontamination, and disposal costs.
Findings
The environmental impact of using hybrid instruments for a laparoscopic cholecystectomy was lower than single-use equivalents across 17 midpoint environmental impacts, with mean average reductions of 60%, and costing less than half that of single-use equivalents (GBP 131 versus 282). The carbon footprint of using hybrid versions of all three instruments was around one-quarter of single-use equivalents (1,756 g versus 7,194 g CO2e per operation), and saved an estimated 1.13 e-5 DALYs (disability associated life years, 74% reduction), 2.37 e-8 species.year (loss of local species per year, 76% reduction), and US $ 0.6 in impact on resource depletion (78% reduction). Scenario modelling indicated environmental performance of hybrid instruments was better even given low number of reuses of instruments, decontamination with separate packaging of certain instruments, decontamination using fossil-fuel rich energy sources, or changing carbon intensity of instrument transportation.
Interpretation
Adoption of hybrid laparoscopic instruments could play an important role in meeting carbon reduction targets for surgery, whilst saving money.
Funding
This work was funded by Surgical Innovations Ltd who manufacture hybrid laparoscopic instruments.