Study Comparing Two Types of Nerve Blocks Combined with Femoral Triangle Block to Reduce Pain After Total Knee Replacement Surgery

What this Trial Is About

Researchers are investigating the effects of combining femoral triangle block with either popliteal plexus block or distal IPACK block to manage pain after total knee arthroplasty TKA. The study compares these two nerve block techniques, which target nerves supplying the back of the knee, as part of a multimodal pain relief approach. This research addresses an important question about which combination may better reduce pain and opioid use after knee replacement surgery. The trial involves two groups receiving different combinations of nerve blocks one group gets femoral triangle block with popliteal plexus block, and the other gets femoral triangle block with distal IPACK block. Each block is given as a single dose bolus of 10 ml of 5% bupivacaine. These procedures are applied during spinal anesthesia before the knee replacement surgery. Participants will be monitored for opioid consumption during the first 24 hours after surgery, which is the main outcome measured. Secondary assessments include pain scores, knee movement range, patient mobilization, muscle strength tests before and after blocks, incidence of rebound pain, and quality of recovery over 48 hours. Muscle strength is evaluated at several time points using standardized tests. The study lasts through the early postoperative period to understand pain control and function following the nerve blocks.

Comparison of Distal IPACK and Popliteal Plexus Block Combined With Femoral Triangle Block After Total Knee Arthroplasty