Effect of Combining Peri-hamstring Injection or Anterior Obturator Nerve Block on the Analgesic Efficacy of Adductor Canal Block for Arthroscopic Anterior Cruciate Ligament Reconstruction Under General Anesthesia

Pain after anterior cruciate ligament reconstruction with autologous hamstring graft can be attributed to both arthroscopic surgery and the graft donor site. Many methods are available to provide postoperative analgesia for patients undergoing total knee arthroplasty, but it is unclear how they compare with each other. The extent to which the two techniques anterior division obturator nerve block vs peritendinous hamstring injection may benefit the patients in terms of overall analgesia and specifically the autograft site analgesia needs evaluation.