About OrthoMeasure
A reference for orthopedic outcome measurement: 86 instruments, each with its scoring formula stated in full, the thresholds that say whether a change matters, and a citation for every number.
Why this exists
Most orthopedic score calculators stop at the number. You answer forty-two questions, you get “64”, and you leave with the harder question unanswered: is 64 good, and does a rise from 56 to 64 mean anything at all?
Answering that requires the minimal clinically important difference for that instrument, in that population, at that follow-up interval — which is published, scattered across hundreds of papers, and almost never collected in one place. Assembling it is the reason this site exists.
Who it is for
Clinicians
Score at the bedside, see the interpretation band and the relevant threshold, copy a result straight into the note.
Researchers
Check an instrument’s psychometrics, licensing status and published thresholds before committing to it in a protocol.
Patients
Understand what a score you have been given actually measures, and what the number means in plain language.
How it is built
Every page is server-rendered static HTML. The questionnaire is present in the page source before any JavaScript runs, which means it is readable by a screen reader, by a crawler, and by the AI assistants that increasingly mediate clinical lookups. Scoring is progressive enhancement layered on top, and each instrument’s scoring code is loaded only on its own page.
Nothing you enter is transmitted anywhere. Scoring happens entirely in your browser, and no answers are stored on a server. The share link encodes your answers in the URL fragment, which by design is never sent in an HTTP request.
Limitations we will not paper over
- Not every instrument here has been signed off by a named clinical reviewer yet. Pages say which, rather than implying an endorsement that does not exist.
- Some instruments are copyrighted and licensed commercially. Where that is the case we publish the profile and the thresholds but not the item wording, and we link you to the rights holder.
- Thresholds are population-specific. A value derived in an arthroplasty cohort does not transfer to a sports cohort, and we report the population rather than a single universal figure.
Clinical disclaimer
These tools support clinical judgement and do not replace it. Scores should be interpreted by a qualified clinician in the context of the individual patient. Always verify a calculated score before acting on it.
Read the editorial methodology for how instruments are sourced and checked.