Disclaimer: This guide provides general information only. Always follow the specific advice of your surgeon and physiotherapist. © 2026 Better Physiotherapy Bundoora.
Total knee replacement (TKR) is one of the most commonly performed orthopaedic procedures in Australia — and one of the most successful. But the outcome of your surgery depends enormously on the quality of your rehabilitation. Physiotherapy after knee replacement is not optional — it is the difference between a good result and an excellent one.
Why Physiotherapy Is Essential After Knee Replacement
The surgical procedure replaces the worn joint surfaces, but it does not restore the surrounding muscle strength, joint mobility, and movement patterns that allow you to function normally. That is physiotherapy's job. Without structured rehabilitation, the knee can become stiff, weak, and painful — with a significant risk of requiring manipulation under anaesthetic to restore movement.
Rehabilitation Timeline
| Timeframe | Goals & milestones |
|---|---|
| Day 0–3 (Hospital) | Stand and walk with a walking frame. Achieve 0° extension (fully straight knee). Begin bed exercises. |
| Week 1–2 | Walking with crutches or frame. Manage wound and swelling. Begin gentle knee flexion exercises. Target 60–70° of flexion. |
| Week 2–6 | Progress to walking stick or unaided walking. Target 90°+ of flexion. Begin stationary cycling. Reduce swelling. Start stairs. |
| Week 6–12 | Progressively strengthen quadriceps and hamstrings. Improve walking endurance and speed. Target 100–110° flexion. Return to driving (right knee). |
| Month 3–6 | Full weight-bearing strengthening. Return to community walking, swimming, and cycling. Target maximum flexion. Achieve full independence. |
What Does Post-TKR Physiotherapy Involve?
- Swelling management — ice, compression, elevation, and electrical stimulation to reduce post-operative swelling that limits movement
- Range of motion exercises — both active and passive, to regain full knee extension (straightening) and flexion (bending) before the joint capsule stiffens
- Quadriceps activation — the quads are typically inhibited after surgery; reactivating them is a priority in the first weeks
- Gait retraining — learning to walk normally again without compensatory movement patterns
- Progressive strengthening — targeting quadriceps, hamstrings, calves, and hip muscles
- Functional training — stairs, getting in and out of a car, and returning to daily activities
How to Get the Best Outcome
The patients who achieve the best outcomes after knee replacement are those who start physiotherapy early, attend consistently, and complete their home exercise program diligently. Pain and discomfort in the first weeks is normal and should not be a reason to stop — your physiotherapist will work within your tolerance and progress you appropriately.
If you are planning a knee replacement and would like to discuss your rehabilitation, or if you have already had surgery and need outpatient physiotherapy, contact Better Physiotherapy Bundoora on (03) 9467 6900.
Frequently Asked Questions
How soon can I drive after knee replacement?
Most patients can return to driving at 4–6 weeks if the surgery was on the right leg, or 2–4 weeks if on the left (automatic vehicle). Your surgeon will confirm clearance based on your specific recovery.
Why is my knee still swollen weeks after surgery?
Post-surgical swelling is normal and can persist for 3–6 months. The knee is essentially recovering from a significant trauma. Elevation, ice, and compression help manage swelling. Your physiotherapist will monitor this and adjust treatment accordingly.
How much knee bend (flexion) do I need after knee replacement?
Most daily activities require 90–100° of knee flexion. Climbing stairs comfortably typically requires 90°, getting in and out of a car 95–100°. Full knee flexion (120–135°) is the goal for most patients and is usually achieved within 3–4 months with diligent rehabilitation.
What happens if I don't do my physiotherapy after knee replacement?
Failing to complete rehabilitation is the leading cause of poor outcomes after knee replacement. Without adequate physio, the knee can become stiff, weak, and painful — sometimes requiring manipulation under anaesthetic to restore movement. Consistent attendance at physiotherapy and completing your home program are essential.
Ashley Haleel
Physiotherapist & Owner — Better Physiotherapy Bundoora