Thinking about knee replacement or just had one done? Physiotherapy plays a critical role in getting you back on your feet—literally. In this blog, we break down the process, what to expect, and how physio can make your recovery smoother, faster, and more successful. Plus, we share a real patient story to inspire you.
Why Knee Replacement Surgery?
Knee replacement surgery, or total knee arthroplasty, is usually the last resort when chronic knee pain and stiffness limit daily life. It’s most often recommended for people with severe osteoarthritis or joint damage that hasn’t responded to conservative treatments like medication, exercise, or physio.
You’re not alone—more than 65,000 Australians undergo knee replacements each year, and that number is steadily rising as our population ages and becomes more active (AIHW, 2023). The great news? With proper post-op rehab, the outcomes are fantastic.

The Role of Physiotherapy After Knee Replacement
Here’s the secret to a great outcome: the surgery is only half the story. The rest is all about rehab, especially physiotherapy.
Think of physio as your roadmap back to mobility, strength, and confidence. Without it, recovery is slower, stiffer, and often incomplete.
We help patients:
- Regain range of motion in the knee
- Build strength in the surrounding muscles
- Improve balance and walking patterns
- Reduce swelling and pain
- Avoid complications like scar tissue build-up or joint stiffness
Whether you’ve just come out of surgery or you’re weeks down the track and feeling stuck, physio is your best ally.
If you aren’t quite at the stage of a replacement, feel free to have a read about our blog on MENISCUS INJURIES, which will often be the issue before consider a knee replacment.

Common Challenges After Knee Replacement
Let’s be real—rehab can be tough. But understanding the common roadblocks helps you stay on track.
1. Pain and Swelling
Pain is normal post-op, but persistent or severe pain may signal issues like overdoing it, infection, or irritation of surrounding tissues. Swelling can also limit movement and slow down progress if not managed well.
2. Limited Range of Motion
Your new joint needs to move! If you don’t work early on to bend and straighten your knee properly, you risk long-term stiffness and may not regain full function.
3. Muscle Weakness
Surgery impacts the quadriceps, hamstrings, calves, and hip muscles. Weakness in any of these can lead to poor walking patterns or even back and hip pain.
4. Fear of Movement
It’s natural to be hesitant. But avoiding movement slows healing. A physio helps you build confidence, set goals, and move safely.

What to Expect in Physiotherapy After Knee Replacement
Week 1–2: Gentle Beginnings
- Pain and swelling management (ice, elevation, gentle massage)
- Bed-based mobility exercises (heel slides, quad sets, ankle pumps)
- Walking re-education with crutches or a frame
- Basic knee bends (aim for 90 degrees flexion by week 2)
Week 3–6: Gaining Momentum
- Weight-bearing exercises and stair practice
- Range of motion goals: aiming for 0° extension and 110° flexion
- Soft tissue work to reduce tightness and scar restriction
- Stationary cycling or gentle water-based exercise
Week 7–12: Strengthening and Function
- Squats, step-ups, resistance band work
- Return to light recreational activities (walking trails, low-impact sports)
- Balance and proprioception training
- Long-term plan to improve endurance
Beyond Week 12: Back to Doing What You Love
- Gym-based or home-based strength programs
- Return to sport (e.g. golf, swimming) if cleared by your surgeon
- Walking long distances, travelling, gardening—life as you want it
Real Patient Story: Barbara’s Recovery Journey
Meet Barbara, 72, from Frenchs Forest. She came to us six days post-op after a total knee replacement. At first, she was nervous—worried about pain, and unsure if she’d ever walk normally again.
In her first physio session, we focused on gentle movements, swelling management, and walking with a frame. By week three, she had graduated to walking with a stick and could bend her knee past 95 degrees.
We tailored her rehab with a mix of clinic and home-based exercises, including glute bridges, heel slides, step-ups, and squats using a chair.
Barbara’s turning point? Around week eight—she could walk around Warringah Mall without needing to sit every 10 minutes. She was so proud she bought us a thank-you card and a photo of her out hiking in Ku-ring-gai National Park at week 16.
Today, she continues strength training in our clinic gym, and tells us she’s “feeling younger than she has in 10 years!”
Top Tips to Maximise Your Knee Replacement Recovery
✅ Start Physio Early
The earlier we see you, the sooner we can guide your movement, manage pain, and prevent complications.
✅ Stay Consistent
Rehab doesn’t work if you don’t do it. Regular sessions + home exercises = best outcomes.
✅ Set Goals
Want to travel again? Garden? Walk the dog without limping? Tell your physio—we’ll create a plan to get you there.
✅ Don’t Compare Yourself to Others
Everyone recovers differently. Your journey is unique.
✅ Ask Questions
Unsure about your exercises or progress? We’re here to help you feel informed and confident.
Is It Too Late for Physio?
Not at all. Even if your surgery was months ago and you feel like you’ve hit a plateau, physiotherapy can still make a huge difference.
We often help people:
- Regain strength and confidence even a year after surgery
- Improve balance and reduce falls risk
- Break through stiffness and scar tissue
- Get back into activities they’ve avoided
How Long Will I Need Physio After a Knee Replacement?
There’s no one-size-fits-all answer, but here’s a rough guide:
- First 6 weeks: 1–2 sessions per week
- 6–12 weeks: Weekly or fortnightly
- 3–6 months: Check-ins and gym-based progressions
- 6–12 months: Occasional sessions if needed
Some patients like Barbara enjoy ongoing support to stay strong and mobile long-term. Others wrap up once they’ve met their goals. It’s all about your needs.

What If I Had a Partial Knee Replacement?
The principles are the same, but recovery is often faster. You may regain motion and strength quicker, but you still need physiotherapy to make sure the new joint integrates well with your body and movement patterns.
Your Local Physio in Frenchs Forest
Whether you’re just about to have surgery or you’re well into recovery, our experienced team at X Physio can help.
We offer:
- 1:1 physiotherapy tailored to your needs
- Post-op strength programs in our onsite rehab gym
- Hands-on treatments for stiffness and tight muscles
- Clear goal setting and progress tracking
- Strong relationships with local surgeons
You don’t have to do this alone. Let’s make your recovery a success story.
Final Thoughts
Knee replacement surgery is a big step—but with the right physiotherapy support, it can be a total game-changer. From day one post-op to hiking trails again, we’re here to guide, motivate and cheer you on.
Give us a call today on 9806 3077, or book online, just CLICK HERE
References
- Australian Institute of Health and Welfare. (2023). Knee replacements in Australia.
- Arthritis Australia. (2024). What is a knee replacement?
- Physio Network. (2022). Rehabilitation after total knee replacement.
- Healthdirect Australia. (2024). Total knee replacement.
- Better Health Channel. (2023). Knee replacement surgery.