PAIN - Postoperative Analgesia INvestigation

Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure.

Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure.

Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day