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🛑 Decision checks

ACL: what “Mechanism” does not decide

The anterior cruciate ligament stabilizes the knee against pivoting and forward-sliding forces, and its rupture is one of the most studied and rehabilitation-intensive sports injuries. Mechanism is a boundary — Pivoting, sudden deceleration, awkward landing — not a winner and not a league table.

At a glance

The boundaryMechanism: Pivoting, sudden deceleration, awkward landing. That sentence…
Common causeCommon cause adds a second limit: Non-contact pivoting injuries in sport. If…
Leave it as a checkUse the published tool for ACL with this limit in view. Check 2 of 4 is…
Stop hereThis is education from the atlas. It does not diagnose and does not prescribe…

Do not turn Mechanism (Pivoting, sudden deceleration, awkward landing) into a ranking. For ACL it only sits next to Common cause: Non-contact pivoting injuries in sport.

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.

MeasureACLAnkle & FootYou want
Pain frequency5070
Recovery length9025
Exercise load8545
Clinician need9035
Self-care fit2575
Recurrence risk4065

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

Mechanism: Pivoting, sudden deceleration, awkward landing. That sentence limits the claim. It does not crown a person, a people, or a nation.

Common cause

Common cause adds a second limit: Non-contact pivoting injuries in sport. 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 ACL with this limit in view. Check 2 of 4 is whether the axis you care about even includes Mechanism.

Stop here

This is education from the atlas. It does not diagnose and does not prescribe a dose. Typical recovery: 9–12 months after reconstruction.

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

What should I do with “Mechanism”?

Do not turn Mechanism (Pivoting, sudden deceleration, awkward landing) into a ranking. For ACL it only sits next to Common cause: Non-contact pivoting injuries in sport.

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 ACL and the signature tool. The figure to carry is Pivoting, sudden deceleration, awkward landing.

Open the topic: ACL · Open the tool