| Name of the Instrument/Tool | Western Ontario Rotator Cuff (WORC) Index |
| First Description |
Kirkley A, Alvarez C, Griffin S. The development and evaluation of a disease-specific quality-of-life questionnaire for disorders of the rotator cuff: the Western Ontario Rotator Cuff Index. Clin J Sport Med 2003;13:84–92. |
| Year | 2003 |
| Domains | |
| Concept of constructs | Health related quality of life, Social Function, Work, Physical function |
| Population/Disease | Disease specific |
| Originally developed for | Shoulder pathology |
| 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 | Portuguese, Polish, Persian, Japanese, Swedish, Norwegian, French, Dutch, Chinese, German |
| REFERENCE IDENTIFICATION | |
| Author/s | Kirkley A, Alvarez C, Griffin S. |
| Title | The development and evaluation of a disease-specific quality-of-life questionnaire for disorders of the rotator cuff: the Western Ontario Rotator Cuff Index. |
| Journal | Clin J Sport Med |
| Year | 2003 |
| Vol | 13 |
| Num | --- |
| Pages | 84-92 |
| Country | Canada |
| Language | English |
| Other references of interest | |
| Link | https://www.sciencedirect.com/science/article/abs/pii/S10582 … |
| Brief Description |
Holtby R, Razmjou H. Measurement properties of the Western Ontario rotator cuff outcome measure: a preliminary report. J Shoulder Elbow Surg 2005;14:506–10 |
| Link | https://link.springer.com/article/10.1007/s12178-020-09684-2 |
| Brief Description |
Wessel RN, Wolterbeek N, Fermont AJ, Lavrijsen L, van Mameren H, de Bie RA. Responsiveness and disease specificity of the Western Ontario Rotator Cuff index. J Orthop 2018;15:337–42 |
| Link | https://pubmed.ncbi.nlm.nih.gov/33091271/ |
| Brief Description |
Buchbinder R, Ramiro S, Huang H, Gagnier JJ, Jia Y, Whittle SL. Measures of Adult Shoulder Function. Arthritis Care Res (Hoboken). 2020 Oct;72 Suppl 10:250-293. doi: 10.1002/acr.24230. PMID: 33091271. |
| Instrument/Tool Translations References | |
| Link | De Witte PB, Henseler JF, Nagels J, Vliet Vlieland TP, Nelis … |
| Brief Description |
De Witte PB, Henseler JF, Nagels J, Vliet Vlieland TP, Nelissen RG. The Western Ontario rotator cuff index in rotator cuff disease patients: a comprehensive reliability and responsiveness validation study. Am J Sports Med 2012;40:1611– |
| DEVELOPER CONTACT INFORMATION | |
| Correspondence to | Sharon Griffin |
| sgriffinlaity@gmail.com | |
| Address | Fowler Kennedy Sport Medicine Clinic, University of Western Onatario, London, Canada. |
| Website | --- |
| Available | --- |
| Links | --- |
| DESCRIPTION OF THE INSTRUMENT | |
| Type Of Measure | Questionnaire |
| Brief Description |
The original version of the WORC Index was published in 2003 and developed to specifically measure disorders of the rotator cuff. It has also been used and evaluated for patients with rotator cuff repair, shoulder instability, and winged scapula. |
| Number of Items | There are 21 items in total (six for physical symptoms, four for sports/recreation, four for work, four for lifestyles, and three for emotions) |
| Range | 0-2100 |
| Responses options/scale |
Yes the lines are 100 mm long. |
| Developed for | --- |
| PRACTICAL APPLICATION | |
| Method of administration | Self-administered |
| Recommendations to score |
Each item is scored from 0 (best) to 100 (worst). The total score ranges from 0 to 2100 but is often normalized as a percentage (out of 100%), with a higher percentage indicating better function. |
| Score Interpretation | A higher score indicates poorer function, but on the percentage scale, a higher percentage indicates better function. |
| Cut-off points | --- |
| Cut-off points applied to | --- |
| Smallest detectable change if described | 16.7-25.4 % |
| Smallest detectable change applied to | Research, Routine care |
| Completion time by the patient | 3 minutes |
| Scoring time by the assessor | - minutes |
| Training to score | Not necessary |
| Strengths | Useful in clinical practice & research, Easy to use |
| Limitations | Ceiling effect |
| OTHER COMMENTS | |
| Other Comments |
The WORC Index is useful in a clinical context for assessing rotator cuff disorders. It is relatively brief, easy to administer and score, and responsive to change |