Peri-articular Injection and (IPACK) With Adductor Canal Block in Total Knee Arthroplasty.

Patients will receive ACB under ultrasound guidance in which the adductor canal was identified beneath the sartorius muscle and 20 ml of 0.25% Levobupivacaine will be injected in the canal

"Patients in group II will receive intraoperative peri-articular (cocktail) injection and will be performed by a single surgeon.~A periarticular cocktail injection consisting of 90 mL of normal saline, 17.5 mL of 0.5% levobupivacaine, 2 mL of ketorolac (30 mg), and 0.5mg (0.5mL) of adrenaline, The total volume of the cocktail will be 110 mL"

Patients will receive ACB under ultrasound guidance in which the adductor canal was identified beneath the sartorius muscle and 20 ml of 0.25% Levobupivacaine will be injected in the canal IPACK block in which The ultrasound probe will be positioned in the popliteal crease, and needle will be inserted into the medial aspect of the knee from anteromedial to posterolateral direction in a plane between the popliteal artery and the femur and 15 ml of 0.25% Levobupivacaine will be injected