Liposomal Bupivacaine Versus Non-liposomal Bupivacaine for Total Shoulder Arthroplasty

Comparison of Liposomal Bupivacaine Versus Non-liposomal Bupivacaine for Total Shoulder Arthroplasty: a Prospective, Double-blinded, Noninferiority Trial

The objective of this study is to validate the analgesic efficacy of admixed Liposomal bupivacaine (LB) + bupivacaine compared with plain bupivacaine when injected for interscalene nerve block (ISNB) for total shoulder arthroplasty (TSA). We hypothesize that admixed LB will be non-inferior to plain bupivacaine in terms of postoperative opioid consumption following TSA. The primary outcome of this study will be opioid consumption over the first 72 hours following surgery. Secondary outcomes will include: pain scores, opioid-related adverse events, block related adverse events, pain related phone calls, pain related ED visits and patient satisfaction.

Inclusion Criteria:

• Adults 18 years of age or older
• Undergoing total shoulder arthroplasty
• Willing and able to sign consent form to participate in study

Exclusion Criteria:

• < 18 years of age
• Unwilling or unable to sign consent form to participate in study
• Allergy to local anesthetic
• Medical contraindication to interscalene nerve block
• Chronic opioid use