What to Expect When Your Parent Has a Hip or Knee Replacement: A Caregiver's Real Timeline

Your parent’s surgeon says the procedure is routine. And for the surgeon, it is — they do five a week. But for you, it’s the start of a caregiving chapter nobody fully prepared you for.

Joint replacement in elderly patients has excellent outcomes. The surgery itself isn’t the hard part. The hard part is the six months after — when your parent needs more help than they’ll admit, when recovery is slower than the brochure promised, and when you’re trying to manage their care on top of your own life.

Here’s what actually happens, week by week.

Before Surgery: The Week You Can’t Skip

The best recovery starts before the operating room.

Home Prep

Your parent is coming home to a house designed for a fully mobile person. It needs to be modified:

• Remove trip hazards — rugs, cords, clutter on the floor
• Install grab bars — bathroom (shower and toilet), and at any stairs they’ll use
• Raised toilet seat — essential after hip replacement, cheap and easy to install
• Shower chair or bench — they won’t be able to stand in the shower for weeks
• Bed height — should be at or above knee height so they can get in and out safely
• Move essentials to counter height — no reaching up into cabinets or bending down
• Stock the kitchen — easy meals, pre-portioned, things they can heat without much effort
• Clear a path — from bed to bathroom to kitchen, wide enough for a walker

Medication Review

Have the doctor review all current medications before surgery. Blood thinners may need to be stopped. Some supplements interact with anesthesia. Create a complete medication list with dosages and bring it to the hospital.

Plan the First Two Weeks

Someone needs to be with your parent or checking on them multiple times daily for the first two weeks. If you can’t be there in person, arrange a home health aide, a rotating family schedule, or a combination. Don’t assume your parent will be fine alone. They won’t be.

Days 1-3: Hospital

Modern joint replacement is fast. Many patients go home the same day or the next. For elderly patients, expect 1-3 days.

What your parent is dealing with: Pain (managed by medication), grogginess from anesthesia, nausea, confusion (common in elderly patients post-anesthesia, usually temporary), and their first attempts at standing and walking with a physical therapist.

What you should do:

• Be present when the surgeon visits to hear the post-op report
• Write down discharge instructions — your parent will not remember them
• Ask the PT what exercises your parent should do at home and how often
• Confirm the follow-up appointment schedule
• Ask about blood clot warning signs — this is the most dangerous early complication

Week 1: The Hardest Week

Your parent comes home. They’re in pain. They’re on medications that make them groggy, constipated, or confused. They need help with everything.

They need help with:

• Getting in and out of bed (specific techniques depending on hip vs. knee)
• Getting to and from the bathroom
• Bathing (sponge bath or shower chair)
• Getting dressed (no bending past 90 degrees for hip replacement)
• Meals — they’re not cooking
• Medication — timed doses, tracking what’s been taken
• PT exercises — at least once daily, ideally twice
• Ice and elevation

The emotional reality: Your parent may be frustrated, weepy, angry, or withdrawn. Anesthesia and pain medication affect mood and cognition. Older patients are at risk of post-operative delirium — temporary confusion, agitation, even hallucinations. This usually resolves within a few days but is alarming when you don’t expect it.

What to watch for: Fever, increasing redness or drainage at the incision, leg swelling or tenderness in the calf (blood clot), confusion that worsens rather than improves.

Weeks 2-3: The False Plateau

Your parent starts feeling better. They want to do more. This is the most dangerous period.

The risk: They feel good enough to attempt things they’re not ready for. Getting up without the walker. Going down stairs. Reaching for something on a high shelf. Fall risk peaks during this window because confidence exceeds capability.

PT is non-negotiable. Either in-home PT visits or outpatient sessions. This is where recovery is made or lost. The exercises are boring. Your parent will want to skip them. Don’t let them.

What you should do:

• Make sure PT sessions are happening (attend if possible)
• Watch for signs they’re doing too much (increased swelling, pain)
• Watch for signs they’re doing too little (stiffness, not using the joint)
• Keep the fall prevention setup in place — they’ll want to put the rugs back
• Start planning for the transition to more independence

Weeks 4-6: Getting There

Most patients are walking with a cane or without assistance by this point. Pain is manageable without heavy medication. They can handle basic daily tasks.

Still needs monitoring:

• PT compliance — the temptation to stop is strongest when they feel “good enough”
• Medication management — transitioning off pain meds, back to regular prescriptions
• Nutrition — recovery demands more protein and calories than normal
• Mood — post-surgical depression is common and underdiagnosed in elderly patients
• Daily check-ins — especially if they’re alone during the day

The 6-week surgeon visit is a milestone. The surgeon will likely clear them for more activity. This doesn’t mean they’re fully recovered — it means they’ve healed enough to progress.

Months 2-6: The Long Tail

The surgery was the easy part. The long tail is where the outcome is determined.

Full recovery — meaning they’re back to (or better than) their pre-surgery activity level — takes 3-6 months for elderly patients. Some patients never fully return to baseline, but most report significantly less pain and better mobility than before surgery.

What determines the outcome:

• PT compliance — the single biggest factor. Patients who do their exercises recover. Patients who don’t, don’t.
• Activity level — walking daily, gradually increasing distance
• Fall prevention — a fall during recovery can undo the surgery. Keep the grab bars.
• Social engagement — isolated patients recover slower. Loneliness affects recovery just as it affects everything else.

Signs to Watch For

At any point during recovery, contact the surgeon if you notice:

• Increasing pain (rather than gradually decreasing)
• Fever over 101°F
• Redness, warmth, or drainage at the incision site
• Calf pain, swelling, or tenderness (possible DVT / blood clot)
• Sudden shortness of breath or chest pain (possible pulmonary embolism — call 911)
• Persistent confusion or personality changes beyond the first week
• The joint feels unstable or “gives way”

If You Can’t Be There the Whole Time

Most adult children can’t take six weeks off work. You need a system.

1. Be there for the first week if at all possible — this is the most intensive period
2. Arrange home health for weeks 2-4 (insurance often covers this post-surgery)
3. Set up a daily check-in so you know they’re okay and doing their PT
4. Coordinate with PT to understand the exercise schedule and what to watch for
5. Build a local contact list — neighbor, friend, or family member who can check in physically

The gap between “they said they did their exercises” and reality can be wide. A daily check-in that confirms they’re active and mobile is worth more than a weekly phone call where they tell you everything is fine.

The Bottom Line

Joint replacement is a well-understood procedure with excellent outcomes. The surgery is the straightforward part. The messy part is the months of recovery — managing pain, enforcing PT, preventing falls, and monitoring for complications, all while your parent insists they’re fine and you try to balance their care with the rest of your life.

A daily check-in with KindWatch gives you visibility into your parent’s recovery without requiring constant phone calls. Are they up and moving? Is their routine normal? Has something changed? You get the answer every day, whether you can be there in person or not. Join the waitlist.