The Outcome Assessment Requires Both Performance-Based and Patient-Reported Measures After Revision Total Knee Arthroplasty

Purpose: To investigate the correlation between performance-based and patient-reported measures and their relation with knee muscle strength in the assessment of revision total knee arthroplasty (rTKA) patients. Materials and Methods: This cross-sectional study recruited 92 patients with rTKA. The outcome assessment was performed using three performance tests and one patient-reported questionnaire. The maximum isometric muscle strength of knee flexors and knee extensors was assessed with Handheld Dynamometry (HHD). Results: The total HSS knee score showed low significant associations with performance-based tests (all, p