Lumbar Discectomy Review Maps Early Pain Relief And Opioid Sparing

Key Takeaways
- Paracetamol, NSAIDs, epidural and intrathecal anaesthetics, local infiltration, nerve blocks, gabapentin, and pregabalin were associated with lower 24-hour opioid consumption.
- Lower pain scores at 6 and 24 hours were associated with paracetamol, NSAIDs, glucocorticoids, ketamine, epidural or intrathecal anaesthetics, local anaesthetics, nerve blocks, gabapentin, and pregabalin.
- The review included 76 randomized trials, 5,617 participants, and 11 strategies, with low to very low certainty because of methodological limits, small samples, heterogeneity, and inconsistent baseline analgesia.
The systematic review examined randomized controlled trials in patients undergoing lumbar discectomy, with opioid consumption within 24 postoperative hours as the primary outcome. It was published in 2026, preregistered in PROSPERO, and conducted according to PRISMA reporting standards. Searches covered Medline, Embase, and the Cochrane Library, while risk of bias was assessed with ROB2. Meta-analyses were performed in RevMan, and trial sequential analysis was used to adjust for random errors. Certainty was evaluated with GRADE, and interpretation remained constrained by the underlying trial base.
For opioid use, pooled analyses linked paracetamol, NSAIDs, epidural or intrathecal anaesthetics, local infiltration, nerve blocks, gabapentin, and pregabalin with lower 24-hour consumption. Pain outcomes at 6 and 24 hours partly overlapped with that pattern and also included glucocorticoids, ketamine, and local anaesthetics. Those three categories were associated with pain-score findings rather than lower opioid use. The overlap across several drug and regional techniques suggested a recurring early postoperative signal rather than a comparative ranking among options.
Certainty across outcomes ranged from low to very low because of methodological limitations, small sample sizes, heterogeneity, and inconsistent baseline analgesia. The investigators also noted that many included trials carried high risk of bias or low overall quality. Those limitations temper confidence in the reported opioid and pain-score associations across the included strategies. The authors concluded that multiple strategies showed potential, but high-quality, standardized trials are still needed.