| Name of the Instrument/Tool | Oxford Knee Score (OKS) |
| First Description |
Dawson J et al. J Bone Joint Surg Br |
| Year | 1998 |
| Domains | |
| Concept of constructs | Physical function, Health related quality of life, Pain |
| Population/Disease | Generic |
| Originally developed for | --- |
| Other rheumatic diseases where can be applied (only if validated) |
--- |
| Additional population with no rheumatic diseases |
No |
| Language: Originally published in | English |
| Available in Language | Dutch, French, German, Italian, Portuguese, Swedish, Korean |
| REFERENCE IDENTIFICATION | |
| Author/s | Dawson J, Fitzpatrick R, Murray D, Carr A. |
| Title | Questionnaire on the perceptions of patients about total knee replacement. |
| Journal | Journal of Bone and Joint Surgery. British volume |
| Year | 1998 |
| Vol | 80 |
| Num | 1 |
| Pages | 63-9 |
| Country | United Kingdom |
| Language | English |
| Other references of interest | |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/17785736 |
| Brief Description |
Murray D, Fitzpatrick R, Rogers K, Pandit H, Beard D, Carr A, et al. The use of the Oxford hip and knee scores. J Bone Joint Surg Br 2007;89:1010–4. |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/25441700 |
| Brief Description |
Beard DJ, Harris K, Dawson J, Doll H, Murray DW, Carr AJ, Price AJ. Meaningful changes for the Oxford hip and knee scores after joint replacement surgery. J Clin Epidemiol. 2015 Jan;68(1):73-9 |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/22588746 |
| Brief Description |
Collins NJ, Misra D, Felson DT, Crossley KM, Roos EM. Measures of knee function: International Knee Documentation Committee (IKDC) Subjective Knee Evaluation Form, Knee Injury and Osteoarthritis Outcome Score (KOOS), Knee Injury and Osteoarthritis Outcome Score Physical Function Short Form (KOOS-PS), Knee Outcome Survey Activities of Daily Living Scale (KOS-ADL), Lysholm Knee Scoring Scale, Oxford Knee Score (OKS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Activity Rating Scale (ARS), and Tegner Activity Score (TAS).Arthritis Care Res (Hoboken). 2011 Nov;63 Suppl 11:S208-28 |
| Instrument/Tool Translations References | |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/16156462?dopt=Abstract |
| Brief Description |
Haverkamp D, Breugem SJ, Sierevelt IN, Blankevoort L, van Dijk CN. Translation and validation of the Dutch version of the Oxford 12-item knee questionnaire for knee arthroplasty. Acta Orthop 2005;76:347 |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/10919298?dopt=Abstract |
| Brief Description |
Dunbar MJ, Robertsson O, Ryd L, Lidgren L. Translation and validation of the Oxford-12 item knee score for use in Sweden. Acta Orthop Scand 2000;71:268–74 |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/16536104?dopt=Abstract |
| Brief Description |
Charoencholvanich K, Pongcharoen B. Oxford knee score and SF-36: translation & reliability for use with total knee arthroplasty patients in Thailand. J Med Assoc Thai 2005;88:1194–202. |
| DEVELOPER CONTACT INFORMATION | |
| Correspondence to | Dawson Jill |
| jill.dawson@dph.ox.ac.uk | |
| Address | Division of Public Health and Primary Care, University of Oxford, Gibson Building, Radcliffe Infirmary, Oxford OX2 6HE, UK |
| Website | http://isis-innovation.com/outcome-measures/oxford-knee-score-oks/ |
| Available | --- |
| Links |
The instrument is copyrighted. However, a sample is freely available online. Anybody wanting to use the measure can request permissions to use on the website. |
| DESCRIPTION OF THE INSTRUMENT | |
| Type Of Measure | Composite Index, Questionnaire, Scale |
| Brief Description |
OKS is a questionnaire for patients undergoing total knee replacement (TKR) that assesses the outcome of knee replacement. It reflects the patients' perception of their knee-related health status, pain and function (pain severity, mobility, limping, stairs, standing after sitting, kneeling, giving way, sleep, personal hygiene, housework, shopping, and transport). Currently, a new version is used with the original 12 items, but with a different scoring (Murray, 2007). |
| Number of Items | 12 |
| Range | 12-60 (original version); 0-48 (current modified version) |
| Responses options/scale |
Yes where 0=worst an 4=best outcome (current modified version) |
| Developed for | Research |
| PRACTICAL APPLICATION | |
| Method of administration | Self-administered |
| Recommendations to score |
The total score is calculated as the sum of scores from responses to all 12 items |
| Score Interpretation | Higher scores reflect poor outcome and lower scores reflect better outcomes (original version); in the modified version this was reversed. |
| Cut-off points | --- |
| Cut-off points applied to | --- |
| Smallest detectable change if described | Smallest detectable change is 4 points. (Beard, 2015) |
| Smallest detectable change applied to | --- |
| Completion time by the patient | 5-10 minutes |
| Scoring time by the assessor | 1-5 minutes |
| Training to score | Not necessary |
| Strengths | Useful in clinical practice & research, Widely used |
| Limitations | Copyrighted |
| OTHER COMMENTS | |
| Other Comments | --- |