Liposomal Bupivacaine Versus Ropivacaine With Perineural Dexamethasone in Adductor Canal Block for Total Knee Arthroplasty: A Randomized Clinical Trial.

BACKGROUND: Adductor canal block (ACB) provides effective analgesia for knee surgery while preserving quadriceps muscle strength. However, conventional local anesthetics yield only a short-lasting effect. To extend analgesia duration and reduce opioi…

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