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ACL Injury
The anterior cruciate ligament is one of the main stabilisers inside the knee, usually injured in a twisting or landing movement rather than a collision. Whether or not you have surgery, rehabilitation determines the outcome — and the decision itself depends on your age, sport and how the knee behaves, not on the scan alone. Both routes need a long, structured program.
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Does this sound like you?
Most people have several of these, not all of them.
- An audible pop or a sense of something tearing at the time
- Rapid swelling within a few hours
- A feeling that the knee will give way, particularly turning
- Difficulty fully straightening or bending the knee early on
- Reduced confidence taking weight, beyond what the pain accounts for
Why it happens
- A twisting movement with the foot planted
- Landing awkwardly from a jump
- A sudden deceleration or change of direction
- A direct blow to the outside of the knee
- Higher risk in women, and in sports with pivoting
What we would do about it
Roughly in this order — each step waits for the one before it.
- Settling swelling and restoring full extension early, which matters more than most people realise
- Progressive strengthening through the quadriceps, hamstrings and hip
- Balance and landing control work
- Pre-operative rehabilitation if surgery is planned, which improves the result
- A criteria-based return to sport rather than a time-based one
- Coordination with your surgeon and any imaging
See a doctor first if
- Your pain followed a significant injury
- It is getting worse rather than settling
- It comes with numbness, weakness or unexplained weight loss
This page is general information, not a diagnosis. Symptoms overlap between conditions, so the right treatment depends on an assessment.
Rehab decides the outcome, with or without surgery
Getting full straightening back early and building strength before any operation measurably improves how you finish. Start sooner rather than waiting on appointments. Ask a question first, or call us on 0403 907 587.
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Related reading: cartilage injury that often occurs with it, longer-term joint changes and other twisting injuries.
General information only, not advice about your own problem — nothing here replaces an assessment. Source: Anterior Cruciate Ligament (ACL) Injury on Physiopedia.
