The Oxford Knee Score (OKS) is a Patient Reported Outcome questionnaire that was developed to specifically assess the patient's perspective of outcome following Total Knee Arthroplasty.
The OKS has subsequently been validated for use in assessing other non-surgical therapies applied to those suffering from issues with the knee.
[1] The OKS consists of twelve questions covering function and pain associated with the knee.
[3] The benefit to this questionnaire is that it is short, practical, reliable, valid and sensitive to clinically important changes over time.
The original evaluation[5] of the Oxford Knee Score was as follows: First, each of the 12 answers are assigned the previously defined number of points.