Hurdle

Oxford Knee Score

screening

Digital administration of Oxford Knee Score to collect structured patient inputs for validated score calculation and clinical follow-up.

Oxford Knee Score

Clinical intent

The Oxford Knee Score (OKS) is a 12-item patient-reported PRO specifically designed and developed to assess function and pain after total knee replacement (TKR) surgery (arthroplasty). It is short, reproducible, valid and sensitive to clinically important changes[1].

Calculation

The total score is produced by taking the sum of all the 12 items (scored 0-4 or 1-5). The total score can thus range from 0 to 48 (or 12 to 60).

Missing data

If there are more than two missing answers, it is recommended that the overall score should not be calculated. In the event one or two questions are unanswered, it is recommended that clinicians put in a mean answer from the patient's other answer. If a question has more than one answer, the worst response i.e. smallest number is used for calculations[2].

This behaviour is currently not implemented in our calculation.

Clinical interpretation

Total scores ranges from 0 (worst outcome) to 48 (best outcome).

Score rangeInterpretation
[0,19]May indicate severe knee arthritis. It is highly likely that you may well require some form of surgical intervention, contact your family physician for a consult with an Orthopaedic Surgeon.
[20,29]May indicate moderate to severe knee arthritis. See your family physician for an assessment and x-ray. Consider a consult with an Orthopaedic Surgeon.
[30,39]May indicate mild to moderate knee arthritis. Consider seeing your family physician for an assessment and possible x-ray. You may benefit from non-surgical treatment, such as exercise, weight loss, and /or anti-inflammatory medication
[40,48]May indicate satisfactory joint function. May not require any formal treatment.

References

[1] Dawson J, Fitzpatrick R, Murray D, Carr A. Questionnaire on the perceptions of patients about total knee replacement surgery. J. Bone Joint Surg 1998; 80-B:63-69. Accessed 15 January 2020.
[2] Oxford University Innovation. The Oxford Knee Score (OKS). 2016. Accessed online from https://innovation.ox.ac.uk/outcome-measures/oxford-knee-score-oks/ on 15 January 2020.

Pathway

Mini Map

Form preview

Interactive preview of the questionnaire. Not for clinical use. Responses are not stored.

Oxford Knee Score Questionnaire
Please complete this questionnaire. Your responses help your clinical team assess your symptoms and monitor progress over time.
During the past 4 weeks...How would you describe the pain you usually have from your knee? 
During the past 4 weeks...Have you had any trouble with washing and drying yourself (all over) because of your knee? 
During the past 4 weeks...Have you had any trouble getting in and out of a car or using public transport because of your knee? (whichever you would tend to use) 
During the past 4 weeks...For how long have you been able to walk before pain from your knee becomes severe? (with or without a stick) 
During the past 4 weeks...After a meal (sat at a table), how painful has it been for you to stand up from a chair because of your knee? 
During the past 4 weeks...Have you been limping when walking, because of your knee? 
During the past 4 weeks...Could you kneel down and get up again afterwards? 
During the past 4 weeks...Have you been troubled by pain from your knee in bed at night? 
During the past 4 weeks...How much has pain from your knee interfered with your usual work (including housework)? 
During the past 4 weeks...Have you felt that your knee might suddenly 'give way' or let you down? 
During the past 4 weeks...Could you do the household shopping on your own? 
During the past 4 weeks...Could you walk down one flight of stairs?