Active Treatment for Hip Arthritis

This will be a randomized comparison of pericapsular nerve group (PENG) blocks with bupivacaine and a placebo control (PENG blocks with normal saline). The overall objective of the proposed research is to determine the relative risks and benefits of a single-injection PENG block to provide postoperative analgesia following hip arthroscopy. Hypothesis 1: Following hip arthroscopy, participants with a PENG block will experience less pain in the recovery room compared with current standard-of-care as measured with the Numeric Rating Scale (NRS). Hypothesis 2: Following hip arthroscopy, participants with a PENG block will consume less opioid in the operating and recovery rooms compared with current standard-of-care as measured in oral morphine milligram equivalents. Primary end point: In order to claim that PENG blocks are superior to placebo overall, at least one of these two hypotheses must demonstrate PENG superiority while the other cannot demonstrate inferiority.