537 Cefazolin in Total Knee Arthroplasty Provides Adequate Serum Levels but Insufficient Tissue Protection For All Pathogens: A Prospective Trial

e052 Redefining Outpatient Criteria: Safe Discharge Rates in Atypical Hip and Knee Arthroplasty Patients

e407 Episode-of-Care Savings: Outpatient Total Knee Arthroplasty Proves More Affordable Than Inpatient Surgery

e439 High Cannabinoid Use in Osteoarthritic Patients Awaiting Hip and Knee Arthroplasty Highlights Need for Clinical Awareness

P050 Tourniquet Use Markedly Decreases Periarticular Cefazolin Tissue Levels During Total Knee Arthroplasty: A Prospective Randomized Trial