In summary, the investigator's hypothesis is that while a similar dose is less effective, a 1.5 gram dose of oral acetaminophen (as determined by the extrapolation of maximum serum concentrations from the Van Der Westhuizen, et al. study (5)) may be as effective as 1.0 gram of IV acetaminophen in reducing postoperative pain scores and total opioid consumption, thus resulting in lower cost to the patient and provider.