Comparing the Lower Limb Tasks Questionnaire to the Western Ontario and McMaster Universities Osteoarthritis Index: Agreement, Responsiveness, and Convergence With Physical Performance for Knee Osteoarthritis Patients

The LLTQ demonstrated adequate agreement with the WOMAC and acceptable responsiveness for use in place of the WOMAC in nonspecialized clinics. The LLTQ may more accurately represent functional status after total knee arthroplasty, but further study in larger samples is recommended.