Key Takeaways
- The first two weeks after knee replacement focus on pain control, swelling reduction and gentle movement.
- Weeks three to six are about restoring the range of motion, strength and confidence with walking.
- From six weeks onwards, rehab shifts towards functional strength and returning to everyday activities safely.
- A tailored physiotherapy program can speed up recovery and reduce the risk of setbacks.
Knee replacement surgery is a big step, but recovery does not have to feel overwhelming. Understanding what usually happens week by week can make the process less stressful and help you know what is normal, what needs attention and when to ask for help. Below is a clear recovery timeline after knee replacement, based on what physiotherapists commonly see in the clinic.
Weeks 0 to 2: Managing pain, swelling and movement
The first fortnight is about settling things down and getting the knee moving safely. Pain and swelling are expected, especially in the first few days. Most people are using walking aids and need help with daily tasks.
Physiotherapy at this stage focuses on gentle exercises to improve knee bend and straightening, activating the thigh muscles, and helping you move safely around the house. Simple habits like regular movement, icing and elevation make a big difference early on.
If pain or stiffness feels harder to manage than expected, early physiotherapy support can help guide you through this phase and avoid compensations that slow progress. If you are unsure how your knee is tracking in the first couple of weeks, you can book an appointment through MGS Physio’s general physiotherapy services to get individual guidance.
Weeks 3 to 6: Building strength and confidence
By this stage, swelling should be gradually reducing and walking should feel more comfortable, often with less reliance on aids. Knee range of motion continues to improve, which is key for tasks like sitting, standing and getting in and out of the car.
Physiotherapy is now becoming more active. Exercises are progressed to build strength in the knee, hips and core, and to improve balance. Walking distances slowly increase, and stairs may feel easier with practice.
This phase is where people often feel impatient. Progress can feel slow, even though important strength and control gains are happening. A personalised physio program helps make sure exercises are challenging enough without overloading the joint. If you want a clear plan tailored to your goals and lifestyle, booking in with a physiotherapist can keep recovery moving in the right direction.
Weeks 6 to 12: Returning to everyday activities
Around six weeks post-surgery, many people notice a real shift. Walking feels more natural, swelling continues to settle, and confidence improves. Daily activities like shopping, light housework and longer walks become more manageable.
Physiotherapy focuses on functional strength. This includes exercises that mimic real-life movements like squatting, stepping and controlled lunging. Improving endurance and joint control helps reduce fatigue and protects the knee during longer days.
This stage is also about identifying movement habits that may increase strain on the knee. Addressing these early reduces the chance of ongoing pain or frustration later. If you want support returning to normal routines safely, a physiotherapist can guide progression and adjust exercises as your capacity improves.
3 to 6 months: Regaining independence and strength
By three months, many people feel significantly more independent. The knee often feels stronger and more stable, although some stiffness or swelling can still appear after busy days.
Physiotherapy during this phase targets strength symmetry between both legs, improved balance and confidence with more demanding tasks. This is especially important for active individuals who want to return to hobbies like bushwalking, golf or recreational sport.
Progress here depends on consistency and smart loading. Doing too much too soon can flare symptoms, while doing too little can slow gains. A structured physio program helps strike the right balance and keeps recovery on track.
6 to 12 months: Long-term recovery and maintenance
Full recovery after knee replacement can take up to a year. By this point, most people have minimal pain, good strength and the ability to participate in the activities that matter to them.
Physiotherapy may shift to maintenance, with a focus on keeping strength, mobility and confidence high long term. This phase is often about future-proofing the knee and preventing issues in other joints.
If your knee still feels limited or unpredictable at this stage, it is worth checking in with a physiotherapist. Small adjustments can make a big difference in comfort and function.
When to consider physiotherapy support
Every recovery timeline after knee replacement looks slightly different. Factors like age, previous activity level and overall health all play a role. Physiotherapy provides structure, reassurance, and progression at each stage of recovery.
MGS Physio supports patients across northern Sydney, including Manly, North Curl Curl and Mona Vale, with personalised one-on-one care focused on safe and confident movement.
If you want help navigating your recovery or feel unsure about your progress, booking a physiotherapy appointment can give you clarity and momentum. Get in touch with MGS Physio.