ACL rehab is not a quick process. In most cases, it is better thought of as a structured 9 to 12 month progression rather than a short block of treatment. For many people, the biggest challenge is not the surgery itself. It is the consistency required afterwards.
At our clinic in Marrickville, we regularly help people through different stages of ACL rehab and physiotherapy, from early post-operative management through to strength work, running progressions and return to sport testing. While every case is different, the outline below gives a good sense of what a typical 12 month period can look like.
Months 0 to 3: Settle the knee and restore the basics
The first phase is usually about getting the knee moving well again and settling pain and swelling. Early priorities often include:
- reducing swelling
- restoring full knee extension
- improving knee flexion
- regaining quadriceps activation
- walking more normally
- building confidence with basic daily tasks
For many people, this stage can feel slow. That is normal. Early rehab is not meant to look exciting. It is meant to lay a good foundation. If range of motion, swelling control and basic strength are not addressed early, they tend to create issues later.
Depending on the surgeon's protocol and any associated injuries, this phase may also include crutch use, brace use, and gradual progression of weight bearing.
Months 3 to 5: Build strength and control
Once the knee is settling and movement has improved, rehab becomes more strength focused. This is where people usually start to feel like they are doing more meaningful work, but it is still a relatively controlled phase.
Common priorities include:
- quadriceps strength
- hamstring strength
- glute and calf strength
- single leg balance and control
- step work, split squat patterns and squat variations
A lot of ACL rehab success comes down to gradually rebuilding the capacity of the entire lower limb, not just the knee. That includes trunk control, pelvis control and confidence through single leg loading.
Months 5 to 7: Running and early power work
One of the most common questions people ask is, 'When can I run again?' The answer depends less on the date and more on whether the knee is ready.
Before returning to running, we are usually looking for:
- good strength markers
- minimal or no swelling response
- acceptable single leg control
- good tolerance to gym-based loading
Once those boxes are ticked, return to running usually starts as a graded progression rather than straight back into normal training. This phase often also introduces basic jumping, landing and power development.
Months 7 to 9: Change of direction and higher level loading
At this stage, rehab starts to look more athletic again. For field and court sports, this often means:
- change of direction drills
- deceleration work
- single leg landing progressions
- reactive movement drills
- higher speed running exposures
This phase matters because many people can look good in straight line strength work but still lack the ability to tolerate unpredictable movement, speed and force.
Months 9 to 12: Return to sport preparation
The final phase is not just about feeling better. It is about being physically prepared for the demands of your sport or activity.
This often includes:
- strength testing
- hop testing
- movement quality assessment
- conditioning appropriate to your sport
- graduated return to training and competition
This is also the point where many people need guidance around confidence. It is one thing to be medically cleared. It is another to trust the knee again in a fast, reactive environment.
Why ACL rehab should not be based on time alone
One of the more common mistakes in ACL rehab is assuming that if enough months have passed, the knee must be ready. In reality, two people at the same time point can look very different. One may be ready to progress, while the other still lacks strength, confidence or load tolerance.
That is why good ACL rehab should be based on objective progress markers, not just the calendar.
When to get help
If you are preparing for surgery, are early post-op, or feel like you have plateaued later in rehab, it is worth getting a proper plan in place. A structured approach can make a significant difference to how the knee functions long term.
If you are looking for ACL rehab and physio in Marrickville, Enmore, Newtown, Stanmore or the broader Inner West, our team can help guide the process from the early stage right through to return to running and sport.
Links:
Sports Injuries |
Running Assessments |
Hamstring Injuries
