Continuous Adductor Canal Block (CACB) Combined With İnfiltration Between the Popliteal Artery and Capsule of the Knee (iPACK) Block vs Continuous Adductor Canal Block Alone After Total Knee Arthroplasty

This study compares the effects of adding an infiltration between the popliteal artery and capsule of the knee (iPACK) block to a continuous adductor canal block (CACB) versus continuous adductor canal block alone on postoperative analgesia, opioid consumption, early mobilization, and length of hospital stay in patients undergoing total knee arthroplasty. This is a prospective, randomized, double-blind study with 54 patients allocated 1:1 into two groups.

Inclusion Criteria: * Patients of either sex * Aged 18 to 75 years * American Society of Anesthesiologists (ASA) physical status I, II, or III * Voluntary participation * Fully oriented and able to cooperate with postoperative assessments Exclusion Criteria: * ASA physical status IV or V * Patients who decline to participate * Pediatric patients * Active infection at the block site * Chronic pain or regular analgesic use * Coagulation disorders * Inability to cooperate with postoperative pain assessment * Known allergy to local anesthetics * Neuropathy or myopathy in the operated extremity * Revision arthroplasty cases