Knee Replacement Recovery
Based on NHS & NICE guidance
Last reviewed: October 2026 · Free to use · No data collected
A total knee replacement usually means one to three days in hospital, with physiotherapy starting almost immediately. Unlike a hip replacement, the knee needs to keep moving from day one — bending (flexion) exercises are uncomfortable but essential to prevent stiffness.
⚕️ This is friendly general guidance. Your surgical team's specific instructions always take priority. If you're concerned about any symptom, contact your team or call 999 / NHS 111; do not rely on this guide alone.
Recovery at a glance
Day 0-1
Walking with frame/crutches, physio starts
Week 1-2
Wound check, bending exercises continue
Week 6-8
Driving may resume if cleared
3-6 mo
Swelling settles, strength builds
Up to 2 yr
Outcome continues to improve
What NHS guidance recommends
- Do your bending (flexion) exercises daily, even though they're uncomfortable
- Ice and elevate the knee to manage swelling, which is normal for months
- Keep the wound clean and dry, and attend your wound check
- Walk regularly with your frame or crutches, building distance gradually
- Take pain relief on schedule so you can keep up with physiotherapy
- Report any sudden increase in pain, redness or warmth
Recovery essentials
Things NHS guidance and other patients say make a genuine difference.
🧊
A knee-friendly ice pack wrap makes regular icing far easier to keep up. Knee Ice Pack Wrap →
🚿
A raised toilet seat and shower stool reduce strain on the new knee early on. Shower Stool Raised Toilet Seat →
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⚠ When to get urgent help
- Increasing redness, warmth, swelling or discharge from the wound
- Fever or feeling generally unwell
- Sudden worsening pain or the knee giving way
- Calf swelling, redness or pain (possible blood clot)
- Chest pain or sudden breathlessness (possible pulmonary embolism)
Chest pain or sudden breathlessness: call 999 immediately. Other concerns: contact your surgical team, GP or NHS 111.
Common questions
Why does my knee need to keep bending so soon after surgery?
Scar tissue forms quickly, and if the knee isn't moved regularly in the first few weeks, stiffness can become permanent. NHS physiotherapy protocols prioritise regaining bend (flexion) and straightening (extension) early, even though exercises can be uncomfortable.
How long does swelling last after a knee replacement?
Some swelling is normal for several months, and mild swelling can persist for up to a year as the joint settles. Ice, elevation and gentle movement help. Sudden worsening swelling with calf pain can signal a blood clot and needs urgent review.
When can I drive after a knee replacement?
Most NHS guidance suggests waiting 6 to 8 weeks, and only once you can perform an emergency stop safely and comfortably, with confirmation from your surgical team. This is often later for a right knee replacement, as braking requires more knee control.
Recovering in Australia instead? See our AU guide for knee replacement recovery (Medicare/AAOS-based).
Related NHS recovery guides
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