Clinical Research Directory

Inclusion Criteria: * Candidates for ambulatory total knee arthroplasty * Candidates for ambulatory total hip arthroplasty * Candidates for ambulatory revision knee arthroplasty (liner exchange only) * Candidates for ambulatory revision hip arthroplasty (liner exchange only) * Case scheduled before noon (12 pm) * Patient agrees to same-day discharge and has a responsible adult to spend the night on the day of discharge Exclusion Criteria: * BMI less than 18.5 or greater than 37.0 * Patients with diabetes, chronic kidney disease, clotting disorders, or neurological conditions preventing control of the affected limb. * Pregnant women * Patients scheduled as ambulatory due to insurance mandates * Patients with a history of active ischemia, significant valvular disease, significant arrhythmias, obstructive sleep apnea as per Hospital for Special Surgery guidelines, chronic opioid dependence (chronic daily opioid use for six or more months), and glomerular filtration rate \< 60ml/min.