Quick answer: what to expect after a knee replacement
Everyone recovers at their own pace, and your surgeon's instructions come first. As a general guide:
- Most people leave hospital 1–4 days after surgery
- You'll probably use a walking frame, crutches or a stick for the first few weeks
- You'll be given an exercise and physiotherapy program — doing it consistently matters
- Swelling and stiffness are normal and can last for weeks
- Strength and flexibility usually keep improving gradually over about 12 months
- Go to the emergency department if your calf becomes red, swollen or painful, or you become short of breath or have chest pain — these can be signs of a blood clot
The operation is only half the job
A knee replacement can relieve years of pain and restore your ability to walk, garden and get out and about. But the quality of that outcome depends heavily on the rehabilitation you do afterwards — especially regaining movement and strength in the first few months.
Recovery follows broad stages, though everyone heals at their own pace. Use this as a guide, and always follow your surgeon and physiotherapist's specific advice.
The first two weeks
Early on, the priorities are managing pain and swelling, moving safely with your walking aid, and beginning gentle exercises to restore the knee's bend and straighten it fully. Regaining that range of movement early is one of the most important parts of the whole recovery.
Swelling is expected and can persist for weeks. Elevation, gentle movement and following your team's advice all help keep it under control.
Weeks 2 to 6
As pain eases, you progress your exercises, build strength in the thigh and hip muscles that support the knee, and gradually walk further. Many people reduce their reliance on a walking aid during this stage, guided by their physiotherapist.
Consistency matters here more than intensity — little and often, done well, beats occasional hard sessions.
Weeks 6 to 12 and beyond
Over the following weeks, the focus shifts to full strength, balance and returning to the activities you value. Many people continue to see improvement in comfort and function for up to a year after surgery.
The single biggest mistake is stopping your program once the knee feels better. Continuing to strengthen through this phase is what secures a strong, lasting result.
Regaining your knee bend
Restoring how far your knee can bend and straighten is a key goal, because it affects everything from walking to climbing stairs to getting in and out of a car. Gentle, regular movement — guided so you push at the right rate without overdoing it — is the way to achieve it.
If your movement seems to be stalling, tell your physiotherapist early; it is far easier to address sooner than later.
How home physiotherapy helps
Getting to a clinic after knee surgery is tiring and sometimes painful, which is why home visit physiotherapy is so valuable. Your physiotherapist can guide your exercises, check your progress and help you regain confidence with stairs and daily tasks — all in your own home.
Fletcher Physiotherapy supports knee replacement recovery across Newcastle and Lake Macquarie. To arrange in-home rehabilitation, call 0404 791 756.