Percentage of patients 18 years of age and older who received an elective primary total knee arthroplasty (TKA) and completed a functional status assessment within 90 days prior to the surgery and in the 270-365 days after the surgery
Patients 19 years of age and older who had a primary total knee arthroplasty (TKA) in the year prior to the measurement period and who had an outpatient encounter during the measurement period
Equals Initial Population
Exclude patients with two or more fractures indicating trauma at the time of the total knee arthroplasty or patients with severe cognitive impairment that starts before or in any part of the measurement period.
Exclude patients who are in hospice care for any part of the measurement period.
Patients with patient-reported functional status assessment results (i.e., Veterans RAND 12-item health survey [VR-12], Patient-Reported Outcomes Measurement Information System [PROMIS]-10 Global Health, Knee Injury and Osteoarthritis Outcome Score [KOOS], KOOS Jr.) in the 90 days prior to or on the day of the primary TKA procedure, and in the 270 – 365 days after the TKA procedure