Switching to oral analgesia: Patients who are nearing discharge criteria and being able to tolerate medications PO will be offered discontinuation of IV PCA and a switch to PO morphine 5-10 mg PO PRN q 2 hours. Patients will continue receiving Celebrex 200 PO q12hr with food intake and Tylenol 650mg PO q4hr while awake until 72 hours postop.