Subjective and Objective Assessments of Knee Function

There are numerous evaluation tools used to assess subjective and objective status after knee injury or surgery. To evaluate appropriate results of treatment, methods of evaluation should include patient-oriented measures such as patient satisfaction and health-related quality of life (HRQOL), as well as outcomes of objective measures. Regarding subjective assessments, scoring systems developed and verified by experts group are widely used such as Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) score, Knee Injury and Osteoarthritis Outcome Score (KOOS), and International Knee Document Committee (IKDC) subjective score. Since psychological factors in knee injuries are also an important factor, scales related to this have also been developed. Pre-existing objective assessments to evaluate knee function have limitations in determining real function, so efforts have been made to find more suitable methods of assessing the functional performance. It is becoming common to use the test battery to comprehensively determine the performance of sports activities as much as possible, and to measure them more concisely using the electronical equipment.