Inclusion Criteria:  ASA PS 1-3 patients undergoing primary, unilateral total knee arthroplasty  Exclusion Criteria:  ASA PS classification of 4 or greater Pre-existing neuropathy Coagulopathy Chronic opioid consumption (>3 months) Infection at the site Known allergy to study medications (lidocaine) High grade atrioventricular block (cardiac conduction system impairment) A history of CVA/TIA Currently using lidocaine patches Known liver disease