Shared Decision Aid for Post-Total Knee Arthroplasty Opioid Prescribing

Inclusion Criteria: * Primary unilateral TKA under spinal anesthesia at Brigham \& Women's Faulkner Hospital (BWFH), Brigham and Women's Hospital or University of Chicago Medical Center by a participating surgeon * \>18 years of age * Planned discharge with the typical analgesic medications prescribed at discharge: * standing around-the clock Tylenol with or without an NSAID * tramadol PRN * hydromorphone (dilaudid) or oxycodone PRN Exclusion Criteria: * Diagnosis of dementia * \<18 years old * Contraindication or allergy to opioids * Contraindication or allergy to Tylenol * Contraindication or allergy to gabapentin * History of substance use disorder * Preoperative pain requiring a \>1-month prescription for \>/=45 daily MMEs * 4 or more preoperative analgesic prescriptions * Hospital admission \>1 day * Discharge to a skilled nursing facility/inpatient rehabilitation center * Non-English speaking patients * Requirement for general anesthesia intra-operatively