Stairs and Walking After a Knee Replacement
Key takeaways
- You take your first steps the day of or the day after surgery, with a physiotherapist and a walking frame.
- Walking aids (a frame, then crutches or a stick) are usually needed for 2 to 6 weeks.
- On stairs, the rule is good leg up, bad leg down: lead with the strong leg going up and the operated leg going down.
- Walking is one of the best things you can do, but build distance gradually and rest with the knee elevated.
- Steady daily walking and stair practice rebuild strength and confidence, which matter as much as the knee itself.
By Margaret Doyle | Medically reviewed by Mr Paul Henderson, FRCS (Tr&Orth)
Updated May 15, 2026 · 3 min read
You take your first steps the day of or the day after surgery, with a physiotherapist and a walking frame, and you will need walking aids for about 2 to 6 weeks. Getting moving early is encouraged because it reduces stiffness and the risk of blood clots1. Walking is one of the best things you can do for a new knee, and stairs become manageable sooner than most people fear.
The first time I stood up, the day after surgery, I was certain my leg would not hold me. It did. This is what I learned about walking and stairs in the weeks that followed, checked by a consultant orthopaedic surgeon. For the operation itself, see the complete guide to knee replacement surgery.
How soon can you walk?
You usually take your first steps the day of or the day after surgery, helped by a physiotherapist and a walking frame. Early movement is actively encouraged to cut stiffness and clot risk2. You then build up over the following weeks, using aids until your strength and confidence return.
That first walk was only a few steps to a chair, and it left me shaking. But the physiotherapist was right that getting up quickly mattered. By the end of the first week I was shuffling along the hospital corridor, slowly, but moving.
How long you need walking aids
Walking aids (a frame, then crutches or a stick) are usually needed for 2 to 6 weeks. Most people progress from a frame to crutches, then to a single stick, then to walking unaided3. The timing depends on your strength, balance, and confidence, not on a calendar.
I was slower than I wanted to be. I clung to one crutch well past the point my knee probably needed it, simply because I did not trust myself. There is no prize for ditching the aids early, and a fall in the first weeks is a genuine setback.
How to climb stairs safely
The rule is good leg up, bad leg down: lead with your strong leg going up, and with the operated leg going down. Going up, your unoperated leg steps first and the new knee follows; going down, the new knee steps first. The Chartered Society of Physiotherapy teaches this same sequence with the handrail4.
The memory aid the physiotherapist gave me has stuck for years: the good leg goes up to heaven, the bad leg goes down. Use the handrail, take one step at a time at first, and do not be proud about it. Stairs felt impossible on day three and ordinary by week four.
Building distance and a normal gait
Build up walking gradually, with several short walks rather than one long one, and rest with the knee elevated afterwards. Walking is one of the best exercises for a new knee, but doing too much too soon causes swelling that sets you back. A limp in the early weeks is common and usually settles as the thigh muscles strengthen.
Things that helped me walk better, sooner:
- Several short walks a day instead of one exhausting one.
- Doing my physiotherapy exercises to wake up the thigh muscles.
- Resting with the leg up after each walk to manage swelling.
- Not comparing my progress to anyone else’s.
Steady practice rebuilds strength and confidence together. For how walking fits the wider picture, see the knee replacement recovery timeline, and once you are steady on your feet, read about driving after a knee replacement.
References
- Recovery: Knee replacement, NHS. ↩
- Total Knee Replacement (OrthoInfo), American Academy of Orthopaedic Surgeons. ↩
- Knee replacement surgery, Versus Arthritis. ↩
- Physiotherapy after a knee replacement, Chartered Society of Physiotherapy. ↩
Common questions
How soon can I walk after a knee replacement?
You usually take your first steps the day of or the day after surgery, helped by a physiotherapist and a walking frame. Getting moving early is encouraged because it reduces stiffness and the risk of blood clots. You then build up distance over the following weeks, using walking aids for about 2 to 6 weeks until your strength and confidence return.
How long do I need a walking frame or crutches?
Walking aids are usually needed for 2 to 6 weeks after a knee replacement. Most people start with a frame, move to crutches, then to a single stick, and finally to walking unaided. The exact timing depends on your strength, balance, and confidence, so follow your physiotherapist's guidance rather than rushing to put the aids away.
How do I climb stairs after a knee replacement?
The rule is good leg up, bad leg down. Going up, lead with your strong, unoperated leg and bring the operated leg up to join it. Going down, lead with the operated leg and bring the strong leg down to join it. Use the handrail, take one step at a time at first, and a useful memory aid is that the good leg goes up to heaven and the bad leg goes down.
How far should I walk each day?
Build up gradually rather than aiming for a set distance. Several short walks a day are usually better than one long one in the early weeks. Increase the distance a little at a time as your knee allows, rest with the leg elevated afterwards, and stop if pain or swelling tells you that you have done too much. Walking is one of the best exercises for a new knee.
Is it normal to limp after a knee replacement?
A limp is common in the early weeks and usually settles as strength and confidence return. It often comes from weak thigh muscles, swelling, or guarding the knee out of caution. Your physiotherapy exercises are designed to correct it, and most people walk more evenly over the first few months. Tell your physiotherapist if a limp is not improving.
When will I walk normally again without aids?
Most people walk without aids within about 6 weeks, though strength and a fully natural gait keep improving for months. Walking aids are needed for roughly 2 to 6 weeks, and returning to normal activities takes about 3 months. Do not rush to walk unaided before you are steady, because a fall in the early weeks can be a real setback.
Written by Margaret Doyle. Medically reviewed by Mr Paul Henderson, FRCS (Tr&Orth).
Our guides are written from personal experience and reviewed by a qualified clinician for accuracy. Read our editorial policy.