Liposomal Bupivacaine Versus Standard Bupivacaine Plus Dexamethasone in Quadriceps Sparing Femoral Nerve Block and Wound Infiltration for Total Knee Arthroplasty

Liposomal bupivacaine (EXPAREL®) 133 mg in 10 mL for quadriceps sparing femoral nerve block and 133 mg in 20 mL for posterior knee compartment periarticular injection.

Bupivacaine HCl 0.5% 10 mL plus dexamethasone 2 mg for quadriceps sparing femoral nerve block and bupivacaine HCl 0.25% plus dexamethasone 2 mg for posterior knee compartment periarticular injection