Recovery After Joint Replacement

The Big Picture

Your recovery roadmap

One of the hardest parts of recovery is knowing whether what you are experiencing is normal.

Patients often compare themselves with a friend, spouse, or someone they met in physical therapy. That comparison is rarely very useful.

Your recovery depends on your health, strength before surgery, how stiff the joint was beforehand, the operation you had, swelling, pain, and many other factors.

Instead of asking whether you are exactly where someone else was on a certain day, I want to see that you are moving in the right direction.

A general roadmap

• First week: control pain and swelling, walk safely, and become comfortable moving around your home
• Weeks 2–6: increase independence, endurance, strength, and — after knee replacement — range of motion
• Weeks 6–12: return toward more normal daily activity while continuing to build strength and endurance
• 3–6 months: continue improving strength, confidence, stamina, and recreational activity
• Beyond 6 months: smaller improvements can continue as the joint becomes less central to your daily life

Days 0–7

The first week: focus on the basics

The first week is usually the most intense part of recovery. Your job is not to prove how much you can do. Your job is to move safely, control symptoms, and begin recovering.

Walking

We want you up and walking very early after surgery. Most patients begin with a walker or another assistive device.

Take frequent short walks rather than trying to complete one long walk. Early walking helps restore independence and is also part of reducing the risk of blood clots.

Home exercise and the ROMTech bike

I commonly prescribe the ROMTech PortableConnect as part of early recovery after both hip and knee replacement. It is a home-based rehabilitation bike that allows you to begin with gentle, controlled motion and gradually progress your activity as recovery continues.

After knee replacement, I particularly like having patients moving the knee frequently and working on range of motion throughout the day. After hip replacement, the bike can provide a convenient way to begin moving and gradually increase activity at home.

I do not require every patient to use ROMTech, and you do not need a particular device to have a successful recovery. If I prescribe it for you, think of it as one of the tools we can use to make frequent, structured movement easier during the early recovery period.

Pain

Some pain is expected. The goal is not necessarily to make every sensation disappear.

Pain control should allow you to sleep, get up, walk, perform your exercises, and gradually become more functional.

Take medications according to the instructions you were given. As pain improves, many patients are able to reduce stronger pain medication.

Swelling

Swelling is expected after both hip and knee replacement and is often particularly noticeable after knee replacement.

The operated leg may look considerably larger than the other leg. Swelling can extend below the surgical area into the lower leg, ankle, and foot.

Activity often makes swelling increase temporarily. Ice, appropriate elevation, rest between activities, and following your prescribed exercise program can help.

How to Elevate Correctly

Elevation can make a real difference with swelling, especially during the first several weeks after surgery. But simply having your foot off the floor is not the same as true elevation.

True elevation means lying down with your operative leg supported so that your foot is above the level of your heart. Use pillows or a wedge to support the leg while you are lying down. This allows gravity to help move fluid out of the leg.

Sitting upright in a recliner with your leg on the footrest or resting your foot on an ottoman usually does not accomplish the same thing. Your foot may be up, but it is often still below the level of your heart.

Bruising

Bruising can appear around the operative area and may travel down the leg over time. The appearance can be dramatic even when recovery is progressing normally.

Sleep

Sleep is commonly disrupted during the first several weeks. Pain, swelling, medications, a changed routine, and difficulty finding a comfortable position can all contribute.

A few bad nights do not mean something is wrong with your replacement.

Appetite and constipation

Appetite may be reduced initially. Stay hydrated and gradually return to normal meals with adequate protein.

Constipation is common, particularly with opioid pain medication. Follow the bowel regimen you were given, drink fluids, move regularly, and contact us if constipation becomes persistent or severe.

Your incision

Follow the specific dressing and showering instructions you received at surgery.

Do not soak the incision in a bathtub, pool, or hot tub until it is fully healed and you have been cleared to do so.

Weeks 2–6

Building independence

During this phase, the goal begins shifting from simply getting through the day to becoming increasingly independent.

You should generally be walking more, needing less assistance, and tolerating more normal daily activity.

Walking aids

Many patients progress from a walker to a cane and eventually to no assistive device during the first several weeks.

There is no prize for getting rid of the walker or cane early. I would rather have you walk safely and with a good pattern than limp badly simply to say you are no longer using it.

How much should I walk?

Gradually increase walking based on how you respond.

If you dramatically increase activity and the joint becomes much more swollen and painful afterward, you probably did more than it was ready for that day.

That does not necessarily mean you damaged anything. It often means you need to temporarily reduce the activity, control the swelling, and then progress more gradually.

Physical therapy

Knee replacement usually requires more formal attention to range of motion and strengthening during this period.

Hip replacement recovery often emphasizes walking, restoring a normal gait, and gradually rebuilding hip and leg strength.

Therapy should challenge you appropriately. It should not become a contest to see how much pain you can tolerate.

If you are using the ROMTech bike, it can continue to be part of this progression. It does not change the overall goals of recovery: improving motion, strength, walking, and independence. Your specific exercise and therapy plan may still be adjusted based on how you are progressing.

Is swelling still normal?

Yes.

This is one of the most important expectations to understand. Swelling does not disappear when the incision heals.

It is very common for a knee in particular to remain visibly swollen several weeks after surgery. The amount may change during the day and often increases after therapy, walking, or prolonged standing.

What I want to see is an overall trend toward improvement — not necessarily a perfectly normal-looking joint by week six.

Why does my knee still hurt in different places?

A replaced knee can still have soreness around the front, inside, outside, or back of the knee during recovery.

The muscles, tendons, ligaments, joint capsule, incision, and surrounding soft tissues are all recovering. These structures can produce aches and pains even though the arthritic joint surfaces have been replaced.

The location and character of these pains often change as swelling decreases and activity increases.

Weeks 6–12

Getting back to normal life

By this stage, many patients are doing most basic daily activities independently.

The focus increasingly shifts toward endurance, strength, confidence, and returning to the activities that motivated you to have surgery in the first place.

Walking and exercise

Continue increasing walking and low-impact exercise as tolerated.

Cycling, swimming once the incision is fully healed, and progressive strengthening are common ways to build endurance without excessive impact.

Driving

There is not one date when everyone is automatically safe to drive.

You need to be off medications that impair driving, able to get in and out of the vehicle safely, and able to control the vehicle and react appropriately in an emergency.

The operative side matters, as does whether you had a hip or knee replacement. Discuss your specific timing with us before returning to driving.

Returning to work

Return to work depends heavily on what you do.

Someone working from a desk may return considerably earlier than someone whose job requires prolonged standing, climbing, lifting, or heavy physical labor.

Returning gradually or with temporary restrictions can be useful when your job allows it.

Why am I still tired?

Surgery is a significant physical stress. Sleep disruption, reduced activity, medications, blood loss, and the energy required for healing can all contribute to fatigue.

Endurance often lags behind improvements in pain and walking. That can be normal.

Should I still have swelling?

Some swelling can absolutely remain.

After knee replacement especially, swelling may persist for months and can still fluctuate with activity.

You should generally notice that the overall amount and frequency are improving even if the knee is not yet identical to the other side.

What happens after three months?

Three months is another milestone, not a deadline.

Many patients are functioning quite well by this point, but strength, endurance, balance, confidence, stiffness, and residual swelling can continue to improve afterward.

Low-impact recreational activities are commonly reintroduced as recovery progresses. More demanding activities should be discussed based on your joint, experience, and goals.

Knee Replacement

What should my knee range of motion look like?

Range of motion is particularly important after knee replacement because swelling and scar formation can make the knee stiff.

I pay attention to two separate things:

• Extension: how completely you can straighten the knee
• Flexion: how far you can bend the knee

Straightening the knee

Regaining full or near-full extension is an important early goal.

A knee that remains significantly bent can affect walking, standing, and muscle function. Work on the extension exercises you have been given and avoid spending long periods with the knee constantly supported in a bent position.

Bending the knee

Flexion should progressively improve as swelling decreases and you work on motion.

Rather than treating one number as a pass-or-fail test, I look at where you started, how quickly you are progressing, how swollen the knee is, and whether motion is continuing to improve.

A practical range-of-motion roadmap

These are general reference points, not deadlines. Your individual goal may be different.

• First 1–2 weeks: focus on getting the knee increasingly straight and making steady progress with bending
• Weeks 2–6: motion should continue improving; everyday activities become easier as bending and extension improve
• Around 6 weeks: I want to see useful functional motion and, most importantly, continued progress rather than a knee that has stopped improving
• Beyond 6 weeks: motion can continue to improve as swelling decreases and strength returns

What numbers are useful?

Roughly 90 degrees of flexion allows many basic seated activities. More bending makes stairs, lower chairs, cycling, and other activities easier.

Many patients ultimately obtain flexion somewhere around 110–120 degrees or more, but not every knee needs to reach the same number to have a successful result.

Preoperative motion matters. A knee that was extremely stiff for years before surgery may recover differently from a knee that had excellent motion before surgery.

When do I become concerned about stiffness?

I become more concerned when the knee is making little or no progress, is losing motion, or remains substantially stiffer than expected despite appropriate therapy and swelling control.

If that happens, I would rather know early so we can evaluate why the knee is struggling and whether the recovery plan needs to change.

Common Experiences

Things that often surprise patients

“My joint is still warm.”

Some warmth around a healing joint — especially a knee — can persist during recovery.

Warmth alone is different from rapidly increasing warmth accompanied by spreading redness, drainage, fever, or progressively worsening pain.

“My knee clicks.”

Knee replacement components are mechanical surfaces. Some clicking or other sensations can occur as the components and soft tissues move.

“The skin around my incision feels numb.”

Small skin nerves are affected when an incision is made. Numbness around part of the incision is common, particularly along the front of the knee.

The area may become less noticeable with time, although some altered sensation can remain.

“I was doing better last week.”

Look at what changed. Did you walk farther? Return to work? Spend hours on your feet? Have a harder therapy session?

Temporary soreness after increasing activity is common. Recovery frequently moves forward in steps rather than in a perfectly smooth line.

“My hip feels weak even though the arthritis pain is gone.”

That can happen. Replacing the arthritic joint does not instantly restore the strength that may have been lost before surgery.

Walking mechanics, muscle strength, balance, and endurance continue recovering after the joint surfaces themselves have been replaced.

“Why do I still notice my knee?”

A knee replacement can be functioning very well without feeling exactly like a natural knee.

Residual stiffness, swelling, numbness, clicking, or awareness of the joint does not automatically mean that something has gone wrong.

Long-Term Joint Care

Protecting Your Joint Replacement Long Term

Dental Work and Antibiotics

Even after you have fully recovered, remember to tell your dentist that you have a hip or knee replacement.

In my practice, I require antibiotic prophylaxis before dental work for life after a hip or knee replacement. This means taking the prescribed antibiotic before your dental procedure, even if your joint replacement was performed many years ago.

Recommendations about antibiotic prophylaxis after joint replacement vary among surgeons and professional organizations. Lifelong prophylaxis is the protocol I use for my joint replacement patients.

If your dentist has questions about your joint replacement or you need an antibiotic prescription before an upcoming dental procedure, please contact our office before the procedure.

Safety

When should I call?

Most aches, swelling, bruising, stiffness, and fatigue are part of normal recovery. Some changes deserve a call.

Contact our office if you develop:

• New or increasing drainage from the incision
• Increasing redness around the incision
• A fever or shaking chills
• Pain that is becoming significantly worse rather than gradually improving
• A sudden major increase in swelling that does not improve with rest and elevation
• New significant calf pain or tenderness
• A wound or skin problem that concerns you
• Knee motion that has stopped improving or is getting worse
• Any significant change that simply does not fit the recovery you had been having

Seek urgent medical attention for:

• New shortness of breath
• Chest pain, particularly with breathing
• Fainting or severe difficulty breathing
• Another symptom that appears to represent a medical emergency

Common Questions

Frequently asked questions

Is it normal to still be swollen at six weeks?

Yes. This is particularly common after knee replacement. Swelling can remain noticeable for several months and often increases temporarily with activity.

Why does my knee still hurt if the arthritis is gone?

The arthritic joint surfaces have been replaced, but the surrounding muscles, tendons, ligaments, capsule, incision, and other soft tissues still need to recover. Different aches and pains during that process are common.

Should I still be using a cane?

Use it if you still need it for balance or if you walk with a significant limp without it. Walking well with a cane is better than walking poorly without one.

How much should I walk?

Walk frequently and increase distance gradually. There is no universal daily step count that every patient must reach. Your swelling, pain, gait, endurance, and response the next day help determine whether the amount is appropriate.

Can I use stairs?

Yes, once you can do so safely. Many patients use a handrail and take one step at a time initially before returning toward a more normal stair pattern as strength improves.

When can I drive?

Timing varies. You must be off impairing pain medication and have enough strength, motion, and reaction ability to control the vehicle safely. Ask us about your individual situation.

When can I return to work?

Desk work may be possible considerably sooner than heavy physical work. Job demands, commuting, swelling, endurance, and the type of joint replacement all influence timing.

When will I feel completely normal?

There is no single date. Many patients are doing much better by six weeks and considerably more by three months, while strength, swelling, endurance, and overall confidence can continue improving for many months.

When can I return to sports?

Low-impact activities are generally reintroduced as strength and control return. Higher-impact or more demanding activities require an individual discussion about your experience, implant, recovery, and goals.