Recovering from Outpatient Total Knee Arthroplasty

Eligibility Details: Inclusion Criteria: 1. patient characteristics suitable for subvastus approach as determined by single surgeon 2. patients willing to undergo ambulatory surgery 3. ability to read and verbally communicate via either English or French Exclusion Criteria: 1. age > 80 2. driving distance greater than 1 hour from hospital 3. no willing caregiver at home on night of surgery 4. renal failure requiring dialysis 5. Insulin-dependent diabetes mellitus 6. BMI > 45 7. allergy to study medications 8. pre-existing neurologic deficit involving the ipsilateral limb 9. chronic high dose opioid use (defined as >200mg/day of morphine equivalent for over 2 weeks). 10. inability to use or manage cACB catheter and pump independently at home 11. inability or refusal to cryocompressive therapy device.