Instrument copyright and licensing
Outcome measures are copyrighted works. Some are released free by their developers, some are licensed commercially, and the distinction matters to anyone using them in a study, a product or a clinic.
Almost no calculator site states this. We do, per instrument, because it is the first question a researcher asks — and because publishing it keeps us honest about what we are entitled to reproduce.
What this page is not
This is our working record, not legal advice, and not a substitute for your own licence. If you are using an instrument in a funded study or a commercial product, go to the rights holder directly. Where we know who that is, we link to them on the instrument’s page.
An active rights holder operates a commercial licensing programme. We publish the instrument profile, thresholds and interpretation, but not the item wording, and we link you to the rights holder.
| Instrument | Rights holder | Our status |
|---|---|---|
| IKDCInternational Knee Documentation Committee Subjective Knee Evaluation Form | American Orthopaedic Society for Sports Medicine | Not yet approached |
| NDINeck Disability Index | Howard Vernon | Not yet approached |
| Oxford Hip ScoreOxford Hip Score | Oxford University Innovation, University of Oxford | Not yet approached |
| Oxford Shoulder ScoreOxford Shoulder Score | Oxford University Innovation, University of Oxford | Not yet approached |
| QuickDASHQuick Disabilities of the Arm, Shoulder and Hand | Institute for Work & Health, Toronto | Not yet approached |
| STarT BackSTarT Back Screening Tool | Keele University | Not yet approached |
We have not yet obtained written confirmation of the permitted use. Treat these as requiring your own check before you use them commercially.
| Instrument | Rights holder | Our status |
|---|---|---|
| ACL-RSIAnterior Cruciate Ligament – Return to Sport after Injury scale | Kate E. Webster and colleagues | Not yet approached |
| CapriniCaprini Risk Assessment Model for venous thromboembolism | — | Not yet approached |
| FADIFoot and Ankle Disability Index | — | Not yet approached |
| KJOCKerlan-Jobe Orthopaedic Clinic Shoulder and Elbow Score | Kerlan-Jobe Orthopaedic Clinic | Not yet approached |
| Knee Outcome SurveyKnee Outcome Survey — Activities of Daily Living Scale and Sports Activity Scale | — | Not yet approached |
| Modified OswestryModified Oswestry Low Back Pain Disability Questionnaire | — | Not yet approached |
| ODIOswestry Disability Index | Jeremy Fairbank / MAPI Research Trust | Not yet approached |
| UEFSUpper Extremity Function Scale | — | Not yet approached |
| WOSIWestern Ontario Shoulder Instability Index | — | Not yet approached |
The developer publishes the instrument for free clinical and research use, or distributes it openly themselves.
| Instrument | Rights holder | Our status |
|---|---|---|
| ASES ScoreAmerican Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form — patient self-report section | — | No licence needed |
| FAAMFoot and Ankle Ability Measure | RobRoy L. Martin | No licence needed |
| FAOSFoot and Ankle Outcome Score | Ewa M. Roos | No licence needed |
| HOOSHip disability and Osteoarthritis Outcome Score | Ewa M. Roos | No licence needed |
| HOSHip Outcome Score | RobRoy L. Martin | Not yet approached |
| KOOSKnee injury and Osteoarthritis Outcome Score | Ewa M. Roos | No licence needed |
| LEFSLower Extremity Functional Scale | — | Not yet approached |
| LysholmLysholm Knee Scoring Scale | — | No licence needed |
| MarxMarx Activity Rating Scale | — | Not yet approached |
| Mayo Elbow ScoreMayo Elbow Performance Score | — | Not yet approached |
| Mayo Wrist ScoreMayo Wrist Score | — | Not yet approached |
| PROMIS Global-10PROMIS Global Health Short Form (Global-10) | PROMIS Health Organization / Northwestern University (HealthMeasures) | No licence needed |
| PSEQPain Self-Efficacy Questionnaire | Michael K. Nicholas | Not yet approached |
| RMDQRoland-Morris Disability Questionnaire | — | Not yet approached |
| SPADIShoulder Pain and Disability Index | — | No licence needed |
| SSTSimple Shoulder Test | — | Not yet approached |
| Tampa Scale of KinesiophobiaTampa Scale of Kinesiophobia | — | Not yet approached |
| TegnerTegner Activity Scale | — | No licence needed |
| TSK-11Tampa Scale of Kinesiophobia, 11-item version | — | Not yet approached |
A method, formula, angle or published decision rule rather than a copyrighted questionnaire. Methods are not protected the way item wording is.
| Instrument | Rights holder | Our status |
|---|---|---|
| Alpha AngleAlpha Angle for Cam Morphology | — | No licence needed |
| AO/OTAAO/OTA Fracture and Dislocation Classification | — | No licence needed |
| AOFAS Ankle-HindfootAOFAS Ankle-Hindfoot Scale | — | No licence needed |
| AOFAS HalluxAOFAS Hallux Metatarsophalangeal-Interphalangeal Scale | — | No licence needed |
| AOFAS Lesser ToesAOFAS Lesser Toes Metatarsophalangeal-Interphalangeal Scale | — | No licence needed |
| ASAASA Physical Status Classification | American Society of Anesthesiologists | Not yet approached |
| BeightonBeighton Score for Joint Hypermobility | — | No licence needed |
| Böhler AngleBöhler Angle | — | No licence needed |
| Canadian C-Spine RuleCanadian C-Spine Rule | — | No licence needed |
| Caton-DeschampsCaton-Deschamps Index | — | No licence needed |
| CCICharlson Comorbidity Index | — | No licence needed |
| Cobb AngleCobb Angle for Scoliosis | — | No licence needed |
| Constant ScoreConstant-Murley Shoulder Score | — | No licence needed |
| CroweCrowe Classification of Developmental Dysplasia of the Hip | — | No licence needed |
| ECOGECOG Performance Status | — | No licence needed |
| ElixhauserElixhauser Comorbidity Score (van Walraven weights) | — | No licence needed |
| Ficat-ArletFicat and Arlet Classification of Osteonecrosis of the Femoral Head | — | No licence needed |
| FrykmanFrykman Classification of Distal Radius Fractures | — | No licence needed |
| GardenGarden Classification of Femoral Neck Fractures | — | No licence needed |
| GartlandGartland Classification of Supracondylar Humerus Fractures | — | No licence needed |
| Gustilo-AndersonGustilo-Anderson Classification of Open Fractures | — | No licence needed |
| Harris Hip ScoreHarris Hip Score | — | Not yet approached |
| HawkinsHawkins Classification of Talar Neck Fractures | — | No licence needed |
| Insall-SalvatiInsall-Salvati Index | — | No licence needed |
| Kellgren-LawrenceKellgren-Lawrence Classification of Osteoarthritis | — | No licence needed |
| Kocher CriteriaKocher Criteria for Septic Arthritis of the Hip | — | No licence needed |
| Lauge-HansenLauge-Hansen Classification of Ankle Fractures | — | No licence needed |
| LCEALateral Centre-Edge Angle of Wiberg | — | No licence needed |
| MasonMason Classification of Radial Head Fractures | — | No licence needed |
| MESSMangled Extremity Severity Score | — | No licence needed |
| MeyerdingMeyerding Classification of Spondylolisthesis | — | No licence needed |
| MirelsMirels' Score for Pathological Fracture Risk | — | No licence needed |
| MMEMorphine Milligram Equivalent (MME) Calculator | — | No licence needed |
| NeerNeer Classification of Proximal Humerus Fractures | — | No licence needed |
| NEXUSNEXUS Low-Risk Criteria for Cervical Spine Imaging | — | No licence needed |
| Ottawa Ankle RulesOttawa Ankle Rules | — | No licence needed |
| Ottawa Knee RuleOttawa Knee Rule | — | No licence needed |
| OuterbridgeOuterbridge Classification of Chondral Lesions | — | No licence needed |
| PauwelsPauwels Classification of Femoral Neck Fractures | — | No licence needed |
| Pittsburgh Knee RulesPittsburgh Knee Rules | — | No licence needed |
| RockwoodRockwood Classification of Acromioclavicular Joint Injuries | — | No licence needed |
| Rowe ScoreRowe Score for Shoulder Instability | — | No licence needed |
| Salter-HarrisSalter-Harris Classification of Physeal Fractures | — | No licence needed |
| SandersSanders Classification of Intra-articular Calcaneal Fractures | — | No licence needed |
| SchatzkerSchatzker Classification of Tibial Plateau Fractures | — | No licence needed |
| SINSSpinal Instability Neoplastic Score | — | No licence needed |
| TLICSThoracolumbar Injury Classification and Severity Score | — | No licence needed |
| Tönnis AngleTönnis Angle (Acetabular Index of the Weight-Bearing Zone) | — | No licence needed |
| UCLA Shoulder ScoreUniversity of California at Los Angeles Shoulder Rating Scale | — | No licence needed |
| VancouverVancouver Classification of Periprosthetic Femoral Fractures | — | No licence needed |
| WeberDanis-Weber Classification of Ankle Fractures | — | No licence needed |
| Wells DVTWells Score for Deep Vein Thrombosis | — | No licence needed |