Opioid and Nerve Block Administration in Knee Arthroplasty: An Observational Retrospective Evaluation.

Aims: Increasing opioid-related adverse events and deaths have amplified interest in non-opioid analgesic options. Peripheral nerve blocks (PNBs) are useful in pain management, especially in minimally invasive day surgeries. This evaluation sought to examine patterns of opioid use among adult patients undergoing total knee arthroplasty, stratified by use of PNBs.