This study aims to compare two different multimodal analgesic techniques for pain management after total knee arthroplasty (TKA). The primary purpose is to determine if a combination of two specific nerve blocks administered by an anesthesiologist (Femoral Triangle Block + iPACK block) results in superior pain control compared to a combination of a nerve block and a local infiltration administered by the surgeon (FTB + Periarticular Infiltration \[PAI\]). The hypothesis is that the FTB + iPACK combination will lead to a significant reduction in Numeric Rating Scale (NRS) pain scores with movement at 24 hours postoperatively. This will be a prospective, randomized, double-blind, parallel-group, single-center study involving patients scheduled for primary unilateral TKA. Participants will be randomly assigned to one of two groups. All patients, clinicians (anesthesiologists and surgeon), and outcome assessors will be blinded to the group allocation using a double-dummy technique.
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Postoperative Pain Score with Movement at 24 Hours
Timeframe: 24 and 48. hours postoperatively