Caring for Someone After Knee Replacement

The first 48 hours at home

Knee replacement is one of the more painful major surgeries in the early days, and swelling around the joint is expected and can look alarming even when it's normal. Pain relief on a schedule (rather than waiting for pain to build) and icing the knee regularly both make a real difference — these are two things you can actively help manage.

They'll be using a walking frame and need to be shown how to navigate stairs safely if your home has them. A firm chair with arms (rather than a soft sofa) makes standing up far easier and safer. Expect to help with showering, getting dressed, and anything that involves bending down.

Unlike some other major surgeries, knee replacement recovery actively wants movement from very early on — gentle bending and straightening exercises usually start the same day as surgery. Encouraging them to do the prescribed exercises, even when it's uncomfortable, genuinely affects how well the knee recovers.

Red flags — call the surgical team

A gradual plateau in swelling or stiffness, especially around week 3, is a normal part of recovery, not a red flag on its own. When in doubt, call the surgical team.

Helping with exercises, without nagging

This is the single biggest difference you can make. Knee replacement outcomes depend heavily on regular, early movement to prevent the joint stiffening up — missed exercise sessions are genuinely harder to make up for later than with most other surgeries.

Framing it as a shared routine tends to work better than reminders: "it's exercise time" lands differently than "did you do your exercises yet?" Sitting with them during the set, or walking alongside them for the prescribed distance, often does more than verbal encouragement alone. A short-lived increase in ache during exercise is expected; sharp pain, or pain that's worse the next day and hasn't settled, is worth mentioning to the physio rather than pushing through.

A practical help checklist

• Set up a firm, higher-seated chair with arms before they come home
• Clear floor clutter and loose rugs — trip hazards matter more while using a frame
• Have ice packs ready and know the icing schedule physio has set
• Set up a shower stool and handheld showerhead
• Keep a visible schedule for pain medication and exercises so neither gets missed
• Be ready to do the exercise session with them, not just remind them of it
• Drive them to follow-up and physio appointments for the first several weeks

How much help they'll need, week by week

A general guide, not a promise — the day-by-day recovery guide has more detail; this is the carer-eye view.

Looking after yourself

Being the one keeping someone to an exercise schedule they don't want to follow is tiring in a different way than physical caregiving — it can feel like conflict even when you're both on the same side. It's normal to feel frustrated, especially if progress stalls around week 3 when motivation often dips.

Many home care services and community organisations offer short-term respite for post-surgical households. There's no requirement to manage every part of this alone, and asking for help early tends to go better than asking once you're already worn down.

It also helps to remember that the plateau weeks are temporary, even when they don't feel that way day to day. Most carers find the intensity of support needed drops off noticeably once the 6-week mark passes and walking distance starts increasing more visibly.