Daniel Moy, MD
San Francisco—A comparison of injection of local anesthetic through a catheter versus a needle for interscalene catheter placement has shown improved pain scores and reduced opioid requirements, suggesting that needle injection may be associated with secondary block failure.
According to the study, patients receiving local anesthesia via a catheter rather than a needle had better pain scores at 24 hours and lower opioid requirements in the PACU as well as at 24