This study demonstrated that an IPACK block reduced opioid consumption by providing effective supplemental analgesia following TKA compared to the FNC-only technique. Hospital length of stay was significantly shorter in the ACB with IPACK group.
Physical therapy performance was significantly better on POD 1 in the ACB with IPACK group compared to the other 2 groups. Although we observed no differences in pain scores between the 3 groups, opioid consumption was significantly reduced in the FNC with IPACK group. We found no significant differences in the 3 groups with regard to baseline patient demographics. Physical therapy performance was measured on postoperative days (POD) 1 and 2, and hospital length of stay was recorded. Pain scores and opioid consumption were recorded at postanesthesia care unit discharge and again at 8-hour intervals for 48 hours. Patients in the IPACK block groups also received a single injection 30-mL IPACK block of 0.25% ropivacaine. This study compared 3 regional techniques (femoral nerve catheter block alone, FNC block with IPACK, and ACB with IPACK) on pain scores, opioid consumption, performance during physical therapy, and hospital length of stay in patients undergoing TKA.Īll patients had a continuous perineural infusion, either FNC block or ACB.
Novel regional techniques, including the adductor canal block (ACB) and the local anesthetic infiltration between the popliteal artery and capsule of the knee (IPACK) block, provide an alternative approach for controlling pain following total knee arthroplasty (TKA).
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