Yale Steroid Enhanced Versus Exparel Nerveblock TKA Part 2

The objective of this study is to investigate the efficacy of Dexamethasone sodium phosphate plus Methylprednisolone acetate in combination with plain bupivacaine ((B-DEX-MPA) compared with Liposomal Bupivacaine in combination with plain bupivacaine (B-LB) on post-surgical pain control among patients undergoing bilateral total knee arthroplasty (TKA) to asses if perineural B-DEX-MPA will result in superior analgesia efficacy as compared to B-LB. This study will also assess if perineural B-DEX-MPA results in improved quality of postoperative recovery as compared to B-LB.