<qa>  What is the term for anesthesia?Scientific or Scholarly Rationale Peripheral nerve blocks have been well studied in the literature with generally good results for controlling post operative pain following orthopaedic surgery 1-4. Regional anesthesia has many benefits. It provides excellent intraoperative anesthesia and muscle relaxation as well as analgesia that continues into the post-operative period. Airway manipulations are avoided, post-operative nausea and vomiting are diminished, post-anesthesia care unit stay are shortened, and fewer nursing interventions in the post-anesthesia care unit are required5-6. 