To establish the improvement in postoperative pain relief provided by intraoperative periarticular injection of our multidrug protocol versus bupivacaine, other data points will be collected. The physical therapy milestones including time to first get out of bed, time to ambulation with or without assistance, time to climb stairs, and time to active straight leg raise will all be collected. The zero time point will be the end of the operation. Pain scale scores during physical therapy sessions with physiotherapists will also be recorded.