A novel technique of peripheral nerve blocks and sedation as primary anesthetic technique for adult emergency hip fracture surgery: A retrospective propensity matched study

Background: No study has evaluated peripheral nerve block as the primary anesthetic technique in adult hip fracture surgery. This retrospective cohort study compares peri-operative outcomes between spinal anesthesia and peripheral nerve block with sedation (block-sedation) in adult emergency hip fracture surgery. Methods: = 230) were identified. Primary outcome was the success rate of block-sedation in emergency hip fracture surgery, defined as the proportion of patients in whom block-sedation was used without conversion to another anesthetic technique. Secondary outcomes included peri-operative opioid requirement (MME), postoperative pain, intra-operative anesthetic requirements (i.e., ketamine, midazolam, propofol), post-anesthesia care unit (PACU) stay, hospital length of stay, and intra-operative hypotension requiring inotropes. Results: = 0.416). Conclusion: In this propensity-matched cohort study, block-sedation was feasible and safe for MIS hip fracture surgeries, with a high success rate (>98%) and low conversion to general anesthesia.