Abstract
In this article, the knee instruments and rating scales that are designed to measure outcomes are revised. Although the International Knee Documentation Committee Subjective Knee Form can be used as a general knee measure, no instrument is currently universally applicable across the spectrum of knee disorders and patient groups. Clinicians and researchers looking to use a patient-based score for measurement of outcomes must consider the specific patient population in which it has been evaluated. The Western Ontario and McMaster Universities Osteoarthritis Index is recommended for the evaluation of treatment effect in persons with osteoarthritis (OA). This is a generic health status questionnaire that contains 36 items, is widely used, and easy to complete. The Knee Injury and Osteoarthritis Outcome Score (KOOS) questionnaire evaluates the functional status and quality of life (QoL) of patients with any type of knee injury who are at increased risk of developing OA; i.e., patients with anterior cruciate ligament (ACL) injury, meniscus injury, or chondral injury. So far, the KOOS questionnaire has been validated for several orthopedic procedures such as total knee arthroplasty, ACL reconstruction, and meniscectomy. The utilization of QoL questionnaires is crucial to the adequate assessment of a number of orthopedic procedures of the knee. The questionnaires are generally well accepted by the patients and open up new perspectives in the analysis of prognostic factors for optimal QoL of patients undergoing knee surgery.
Highlights
There is consensus that patient-reported outcomes have additional value compared to clinical variables when evaluating patient health [1]
The Knee Injury and Osteoarthritis Outcome Score (KOOS) questionnaire has been validated for several orthopedic procedures such as total knee arthroplasty (TKA) [24], anterior cruciate ligament (ACL) reconstruction [25], and meniscectomy [26]
The test–retest reliability coefficient was 0.97. These results suggest that the Activities of Daily Living Scale is a reliable, valid, and responsive instrument for the assessment of functional limitations that result from a wide variety of pathological disorders and impairments of the knee
Summary
There is consensus that patient-reported outcomes have additional value compared to clinical variables when evaluating patient health [1]. In the past 20 years, there has been considerable growth in the number of knee instruments and rating scales that are designed to measure outcomes from the perspective of the patient. The KOOS questionnaire has been validated for several orthopedic procedures such as total knee arthroplasty (TKA) [24], ACL reconstruction [25], and meniscectomy [26].
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