Objective:

To evaluate the efficacy of liposomal bupivacaine in reducing postoperative pain and opioid consumption in patients undergoing third molar extraction.

Key Findings:

• Liposomal bupivacaine showed a statistically significant reduction in opioid consumption at 48 hours, with a decrease of -1.20 morphine mg equivalents (MME), but this reduction is clinically negligible.
• No significant improvement in postoperative pain outcomes was observed between liposomal bupivacaine and controls in the first 48 hours, indicating a lack of clinical relevance.
• The reduction in opioid prescriptions may be a behavioral phenomenon rather than a pharmacologic effect.
• Substantial variability was noted across studies, particularly in cumulative pain outcomes, highlighting the need for further investigation.

Interpretation:

The findings suggest that liposomal bupivacaine's extended-release formulation does not provide superior analgesia or meaningful reductions in opioid use compared to standard treatments, raising questions about its clinical relevance.

Limitations:

• Limited number of available trials.
• Substantial variability in study outcomes, necessitating larger trials for more definitive conclusions.

Conclusion:

Routine use of liposomal bupivacaine for third molar extraction may not be justified due to its cost and lack of clear clinical superiority over standard treatments. Further research is needed.