Sciatic Nerve Block, Adductor Canal Block, or IPACK Block

Comparison between local anesthetic infiltration between the popliteal artery and the capsule of the knee (IPACK) versus adductor canal block (ACB) or sciatic nerve block (anterior approach) in combination with femoral nerve block for postoperative analgesia in major knee surgeries.

Inclusion Criteria:ASA I or II physical statusundergoing elective major knee surgeryExclusion Criteria:refusal of the patients to give informed consent,preexisting coagulation disorders,known allergies to aminoamide local anesthetics,local infection at the site of the block,morbid obesity,hepatic and renal diseasespatients with psychological disorders