For the millions of adults living with debilitating lumbar spine disease, the choice of anesthesia during fusion surgery has historically been treated as a secondary concern compared to the surgical technique itself. New evidence suggests that decision carries meaningful consequences for recovery, opioid exposure, and hospital stay — factors that directly shape a patient's long-term trajectory after spinal surgery.
This retrospective, single-surgeon analysis examined outcomes across patients who underwent single-level transforaminal lumbar interbody fusion (TLIF) between 2018 and 2024. The study compared three anesthesia approaches: conventional general anesthesia (GA), awake spinal anesthesia alone, and spinal anesthesia combined with an erector spinae plane (ESP) block — a regional technique that targets paravertebral nerves via fascial plane injection. Using multivariable regression to control for confounders, the analysis found that awake spinal anesthesia was independently associated with lower intraoperative opioid consumption (p = 0.007). The ESP block added further benefit: reduced postoperative opioid utilization (p < 0.001) and shorter hospital length of stay (p = 0.044). When spinal anesthesia and ESP block were combined, both length of stay and postoperative morphine equivalent daily dose dropped significantly (p = 0.030 and p = 0.002, respectively).
These findings align with a growing body of evidence supporting multimodal, opioid-sparing anesthetic strategies in orthopedic and spine surgery. The ESP block, first described in 2016, has gained traction across thoracic and lumbar procedures precisely because it offers segmental analgesia with a relatively favorable safety profile compared to neuraxial techniques. However, several important limitations temper enthusiasm here. The retrospective, single-surgeon design introduces selection bias — surgeons who adopt regional techniques may also employ other best practices that confound outcomes. Cohort size and case mix are not fully reported in the excerpt, and generalizability to multi-surgeon or high-complexity cases remains uncertain. Still, as spine surgery volume continues to rise and opioid stewardship becomes a regulatory and clinical priority, this kind of technique-evolution data — even at the single-center level — provides actionable signal for surgical teams reconsidering their perioperative protocols.