| Name of the Instrument/Tool | Oxford Shoulder Instability Score (OSIS) |
| First Description |
Dawson J, Fitzpatrick R, Carr A. The assessment of shoulder instability. The development and validation of a questionnaire. J Bone Joint Surg Br. 1999 May;81(3):420-6. |
| Year | 1999 |
| Domains | |
| Concept of constructs | Physical function, Health related quality of life |
| 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 | Greek, Japanese, Persian, Turkish, Dutch, Italian, Polish |
| REFERENCE IDENTIFICATION | |
| Author/s | Dawson J, Fitzpatrick R, Carr A. |
| Title | The assessment of shoulder instability. The development and validation of a questionnaire. |
| Journal | J Bone Joint Surg Br |
| Year | 1999 |
| Vol | 81 |
| Num | 3 |
| Pages | 420-6 |
| Country | UK |
| Language | English |
| Other references of interest | |
| Link | https://pubmed.ncbi.nlm.nih.gov/30739129/ |
| Brief Description |
Psychometric properties of patient-reported outcome questionnaires for patients with musculoskeletal disorders of the shoulder |
| Link | https://pubmed.ncbi.nlm.nih.gov/18786836/ |
| Brief Description |
Comparison of two patient-based outcome measures for shoulder instability after nonoperative treatment |
| Link | https://pubmed.ncbi.nlm.nih.gov/34225701/ |
| Brief Description |
Responsiveness of five shoulder outcome measures at follow-ups from 3 to 24 months |
| Instrument/Tool Translations References | |
| Link | https://pubmed.ncbi.nlm.nih.gov/30406841/ |
| Brief Description |
Translation, cross-cultural adaptation, and validation of the Italian version of the Oxford Shoulder Instability Score |
| Link | https://pubmed.ncbi.nlm.nih.gov/26380968/ |
| Brief Description |
The Oxford Shoulder Instability Score; validation in Dutch and first-time assessment of its smallest detectable change |
| Link | https://pubmed.ncbi.nlm.nih.gov/30326748/ |
| Brief Description |
The reliability and validity of the Turkish version of the oxford shoulder instability score |
| DEVELOPER CONTACT INFORMATION | |
| Correspondence to | Dawson Jill |
| The developer can be contacted via Oxford University Innovation: david.churchman@innovation.ox.ac.uk | |
| Address | Division of Public Health and Primary Care, University of Oxford, Gibson Building, Radcliffe Infirmary, Oxford OX2 6HE, UK |
| Website | --- |
| Available | - |
| Links |
https://innovation.ox.ac.uk/outcome-measures/oxford-shoulder-instability-score-osis |
| DESCRIPTION OF THE INSTRUMENT | |
| Type Of Measure | Questionnaire |
| Brief Description |
The Oxford Shoulder Instability Score (OSIS) is developed and validated for measuring surgical and non-surgical therapeutic outcomes of patients presenting with unidirectional or multi-directional instability of the shoulder |
| Number of Items | 12 |
| Range | 0-48 |
| Responses options/scale |
Yes 0-4 |
| Developed for | Both |
| PRACTICAL APPLICATION | |
| Method of administration | Online, Interviewer/assessor |
| Recommendations to score |
The recommended scoring system (2006) changed in 2009: Each question on the OSIS should be scored 0 to 4, with 4 representing the best (this is the opposite direction from the original method of scoring). The overall score is reached by simply summing the scores os the 12 items received for individual questions. When the 12 items are summed, this produces overall scores that run from 0 to 48 with 48 being the best outcome (to convert the “old system” of 60–12 to the 0–48 scoring system and vice versa simply subtract the score from 60). |
| Score Interpretation | Higher scores indicate least symptoms |
| Cut-off points | --- |
| Cut-off points applied to | --- |
| Smallest detectable change if described | --- |
| Smallest detectable change applied to | --- |
| Completion time by the patient | - minutes |
| Scoring time by the assessor | - minutes |
| Training to score | Not necessary |
| Strengths | Easy to use, Useful in clinical practice & research |
| Limitations | Copyrighted |
| OTHER COMMENTS | |
| Other Comments |
It is recommended that if after several attempts to obtain complete data, only one or two questions have been left unanswered, the mean value representing all of their other responses should be included to fill the gaps. If more than two questions are unanswered the overall score should not be calculated. If patients indicate two answers for one question it is recommended that the convention of using the worst (most severe) response is adopted. |