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🛑 Decision checks

Knee: what “Primary motions” does not decide

The knee is the body's largest joint and one of its most frequently injured, relying on ligaments and surrounding muscles rather than bony shape for stability. Primary motions is a boundary — Flexion, extension, slight rotation — not a winner and not a league table.

At a glance

The boundaryPrimary motions: Flexion, extension, slight rotation. That sentence limits…
Common causeCommon cause adds a second limit: Overuse, ligament sprain, meniscus injury,…
Leave it as a checkUse the published tool for Knee with this limit in view. Check 2 of 4 is…
Stop here — knee-limit-1This is education from the atlas. It does not diagnose and does not prescribe…

Do not turn Primary motions (Flexion, extension, slight rotation) into a ranking. For Knee it only sits next to Common cause: Overuse, ligament sprain, meniscus injury, osteoarthritis.

Weigh it for yourself

Mark each measure High, Any or Low for what you want. The fit number moves with every mark, and your marks follow you to the next page in this app.

MeasureKneeLower BackYou want
Pain frequency6580
Recovery length5540
Exercise load6050
Clinician need6055
Self-care fit5060
Recurrence risk6075

Mark at least one measure to see a fit number.

Scores are the atlas’s 0–100 teaching marks for each topic. They are not a diagnosis, a dose or a treatment choice.

Reading checklist

Tick a point once you could explain it in your own words. Ticks stay on this device.

0 of 4 points done

The boundary

Primary motions: Flexion, extension, slight rotation. That sentence limits the claim. It does not crown a person, a people, or a nation.

Common cause

Common cause adds a second limit: Overuse, ligament sprain, meniscus injury, osteoarthritis. If the two limits disagree, keep both and do not average them into a prize.

Leave it as a check

Use the published tool for Knee with this limit in view. Check 2 of 4 is whether the axis you care about even includes Primary motions.

Stop here — knee-limit-1

This is education from the atlas. It does not diagnose and does not prescribe a dose. Typical recovery: 6–12 weeks for most soft-tissue injuries.

This is education from the atlas. It does not diagnose and does not prescribe a dose.

What should I do with “Primary motions”?

Do not turn Primary motions (Flexion, extension, slight rotation) into a ranking. For Knee it only sits next to Common cause: Overuse, ligament sprain, meniscus injury, osteoarthritis.

Does this page rank people or nations?

This is education from the atlas. It does not diagnose and does not prescribe a dose.

Where is the existing tool?

Use the two links below: the topic entry for Knee and the signature tool. The figure to carry is Flexion, extension, slight rotation.

Open the topic: Knee · Open the tool