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Your KOOS-12
Read this score the opposite way round. On the KOOS-12, 100 means no knee problems at all and 0 means extreme problems. A higher number is better — which is the reverse of most symptom scores, including the other scores on this website.
Your score helps describe the severity and impact of your current symptoms. It does not by itself diagnose the cause of the symptoms or determine whether embolisation is appropriate.
What it does not tell you:
- What is causing your symptoms — several different conditions produce the same score.
- Whether you are suitable for embolisation, which depends on imaging, examination and your own preferences.
- Anything about how your symptoms will change without treatment.
Take this score to your GP or specialist. It is genuinely useful as a starting point for that conversation — and as a baseline to compare against later.
Get in touch
If your KOOS-12 is 74 or below, you may want some advice on what your options are. You can share this result with Tarr Radiology and we will come back to you with an answer to whatever you would like to ask — there is no obligation to book anything.
Your score is in the lower range, so there may be nothing that needs doing right now. If your symptoms are still bothering you, or you would simply like to talk it through, you are very welcome to get in touch.
If this is urgent, do not use this page
If your knee is hot, red and swollen with fever, if you cannot bear weight at all after an injury, or if your calf is painful and swollen, seek medical care the same day. Do not wait for this questionnaire.
This page provides no emergency or urgent clinical assessment, and nobody monitors it outside consulting hours.
What this score measures — and what it does not
This questionnaire does not diagnose anything
It measures how severe and how troublesome your symptoms are right now. It cannot tell you what is causing them, it cannot tell you whether you have knee osteoarthritis, and it cannot decide whether embolisation or any other treatment is right for you. Only a consultation, an examination and the appropriate tests can do that.
What this score measures
Twelve questions in three groups of four: knee pain, everyday function, and the effect of your knee on your quality of life.
Each group is scored from 0 to 100, and the three are averaged for an overall score. On this scale 100 means no knee problems and 0 means extreme problems — so unlike most symptom scores, and unlike the other scores on this site, a higher number is better.
Scored according to the KOOS scoring instructions: each response counts 0 to 4 in the printed order, each of the three subscales is calculated as 100 minus the mean of its four items divided by 4 times 100, and the KOOS-12 summary score is the average of the three subscale scores. This is the US English original — the only English version published — so a few phrases will read as American.
The low, moderate and high bands shown with your result are a practical guide used by this practice to help you read your score. They are not official categories of the instrument.
Privacy — how your answers are handled
Privacy
Anonymous calculator. This page works out your score inside your own web browser. Your answers are not sent to Tarr Radiology, and they are not stored on any server, unless you choose to fill in the “Get in touch” section and press send. We do not ask for your date of birth, address, Medicare number or referring doctor here.
Unfinished answers may be kept temporarily in your own browser on this device so you can come back to them. Use “Start again” to clear them.
We measure anonymous usage of this page — how many people start and finish the questionnaire, and how long it takes. Your answers and your score are never included in that measurement and are never sent to analytics or advertising services.
If you send us your score, your name, contact details, answers and score are handled as health information under the Privacy Act 1988 (Cth) and the Australian Privacy Principles, and are kept in our clinical records. Read our privacy policy and collection notice.
Common questions
What does my KOOS-12 score mean?
It is scored from 0 to 100 where 100 means no knee problems and 0 means extreme problems. That is the opposite direction to most symptom questionnaires, so a high number here is good news. You also get three separate scores — pain, function and quality of life — because a knee can be painful without being stiff, or vice versa.
Why does the wording sound American?
Because the KOOS-12 has only ever been published in US English and Swedish. Licensed questionnaires must be used exactly as written — changing even a spelling would make it an unauthorised adaptation and would break the comparability with published research that is the whole point of using it.
How much does the score change after genicular artery embolisation?
Published series generally report improvement in KOOS pain and function scores over the first three to six months, with most of the benefit apparent by three months. Individual results vary, and embolisation may reduce, delay or avoid the need for knee replacement rather than guarantee it.
Is this the same as the knee tracker on your other page?
No, and the two are not interchangeable. The tracker is a short questionnaire of our own for following your own progress. The KOOS-12 is a validated instrument used in research, which is why we use it for patients we are following after treatment.
Are my answers stored?
Not in the anonymous calculator. Scoring happens in your browser. Nothing is sent to us unless you choose to complete the “Get in touch” section and press send.
Read more
Medically reviewed by Dr Gregory Tarr, MB ChB, PhD, FRANZCR, EBIR
Reviewed 25 July 2026 · next review due July 2027 · instrument: KOOS-12
Questionnaire wording, scoring and interpretation clinically approved by Dr Gregory Tarr on 25 July 2026. Items and point values verified against the source publication on 25 July 2026.
This page is general information for Australian patients and their doctors. It is not a substitute for individual medical advice.