Results of the base case analysis.
| Type of Fusion Options | Cost, USD | Effectiveness (QALY) | Incremental Cost, USD | Incremental Effectiveness (QALY) | Net Monetary Benefit, USD |
| PLIF | 16,500 | 14.61 | |||
| LLIF | 15,355 | 14.48 | −1145 | −0.13 | 539.76 |
Abbreviations: LLIF, lateral lumbar interbody fusion; PLIF, posterior lumbar interbody fusion; QALYs: quality-adjusted life-year.