Key takeaways
- Daily physiotherapy is the single most important factor in recovery.
- Aim to regain full knee straightening early, then work on bending.
- Ice and leg elevation help control swelling.
- Calf pain, fever or wound discharge need prompt medical review.
Weeks 1–2: early recovery at home
The focus is pain control, wound care and safe walking with a walker. Exercises include ankle pumps, quadriceps tightening, straight-leg raises and gentle knee bending. Do not place a pillow under the knee — it can cause the knee to stiffen in a bent position. Stitches or staples are usually removed around 10–14 days.
Weeks 3–6: building movement and strength
Most patients progress from a walker to a walking stick. Exercises increase in difficulty — sitting knee bends, step-ups, and standing balance. A common goal is around 90 degrees of knee bend by six weeks, though this varies. Short walks several times a day are better than one long walk.
Weeks 7–12: returning to daily life
Walking without support becomes easier, stairs become more natural and many people return to light household activities and short drives (if advised). Strengthening and balance work continue. Swelling can persist for several months and is usually normal.
Managing pain and swelling
- Take pain medicines before physiotherapy sessions if advised, so you can exercise properly.
- Apply an ice pack wrapped in a cloth for 15–20 minutes after exercise.
- Elevate the leg with the whole leg supported, keeping the knee straight.
- Wear compression stockings if prescribed.
Home setup tips
- Use a raised toilet seat or commode chair and a firm chair with armrests.
- Remove loose rugs and clutter; add night lights.
- Keep everyday items at waist height.
- Use a shower chair and grab bars in the bathroom.
Warning signs
Contact the surgeon if there is fever, increasing redness, warmth or discharge from the wound, calf pain or swelling, sudden increase in knee pain, or breathlessness. Breathlessness or chest pain needs emergency care — call 108 / 112.
Frequently asked questions
How long does it take to walk normally after knee replacement?
Many people walk without support by six to eight weeks, and feel close to normal for daily activities by about three months, though full recovery can take up to a year.
Can physiotherapy after knee replacement be done at home?
Yes. A physiotherapist can visit home for one-on-one sessions, which is often easier for patients in the early weeks.
How many physiotherapy sessions are needed after knee replacement?
It varies, but most patients benefit from regular sessions for six to twelve weeks, plus daily home exercises.
This guide is general information for families, not medical advice. Always follow your treating doctor’s instructions. In an emergency call 108 / 112.