Improving Pain Management and Decreasing LOS After Total Hip Arthroplasty (THA) and Total Knee Arthroplasty (TKA)

Inclusion Criteria

• •1. Adults 50 to 80 years, inclusive
• •2. Planned primary THA or TKA
• •3. Expressed willingness to be discharged the same day of surgery if condition allows
• •4. American Society of Anesthesiologists (ASA) physical classes I - III
• •1. ASA I: A normal healthy patient. Example: Fit, nonobese (BMI under 30), a nonsmoking patient with good exercise tolerance.
• •2. ASA II: A patient with a mild systemic disease. Example: Patient with no functional limitations and a well-controlled disease (e.g., treated hypertension, obesity with BMI under 35, frequent social drinker or is a cigarette smoker).
• •3. ASA III: A patient with a severe systemic disease that is not life-threatening. Example: Patient with some functional limitation as a result of disease (e.g., poorly treated hypertension or diabetes, morbid obesity, chronic renal failure, a bronchospastic disease with intermittent exacerbation, stable angina, implanted pacemaker).
• •5. Patients who are English competent.