Surgery day & discharge
The first steps are supported.
In a knee replacement, the surgeon replaces damaged joint surfaces with artificial components. The goal is to reduce pain and improve movement; healing and rehabilitation still take time.
Read more: AAOS · Total knee replacement (opens in a new tab)
You’ll spend time in recovery while staff manage pain and check you. Some people go home the same day; others stay longer. The team will assess whether you can safely manage at home and show you how to move with support.
Read more: Hospital for Special Surgery · Outpatient knee replacement (opens in a new tab) · NHS · Recovering from knee replacement (opens in a new tab)
A few things that can feel unfamiliar
The recovery room: Staff check your breathing, pulse, blood pressure, and dressing while you wake up. Ask what the monitors and equipment are for.
The wait for family: Surgery, recovery-room care, and getting a room are separate stages. Ask how updates will be shared rather than assuming a long wait means something went wrong.
Getting up: In hospital, call staff before standing or walking. Ask for bathroom help early enough that you do not have to rush.
Read more: Ascension Seton · Hip and knee patient manual (opens in a new tab)
The first days at home
Small tasks can be a big day.
Your early routine may revolve around meals, medicines, bathroom trips, rest, and your prescribed movement. Have your discharge plan nearby, and allow extra time for ordinary tasks.
Use your walking aid as instructed. Follow your specific dressing, wound-care, and medication instructions. If pain remains uncontrolled, contact your team rather than taking extra doses.
Read more: Ascension Seton · Hip and knee patient manual (opens in a new tab)
The early weeks
Find a rhythm of movement and rest.
Pain, bruising, swelling, and disrupted sleep can be part of early recovery. Your therapist can help you balance prescribed exercises, short bouts of activity, and rest. A more uncomfortable day is a reason to review your activity and symptoms, not automatically to push harder.
Read more: Gateshead Health · Physiotherapy after knee replacement (opens in a new tab)
New calf pain, sudden swelling, increasing wound redness, or worsening pain should not be dismissed as routine recovery. Check when to get help.
The following weeks
Build confidence, then add more.
Walking and daily tasks usually get easier gradually. Returning to work, driving, and changing walking aids depend on your progress, your activities, and your team’s advice. A date on someone else’s calendar is not clearance for you.
Read more: NHS · Recovering from knee replacement (opens in a new tab)
The months ahead
Healing keeps going beyond the first wins.
Strength, stamina, and confidence can take months to return. The full benefit may take 6–12 months, and recovery varies. Feeling tired or emotional can happen along the way. Tell your team if your mood or exhaustion is persistent, severe, or affecting daily life.
Read more: Royal Orthopaedic Hospital · Recovery guidance (opens in a new tab)
Recovery nutrition
Nutrition supplements to ask your care team about.
Juven: an option for wound-healing support
Juven is a nutrition powder containing HMB, arginine, glutamine, collagen peptides, and vitamins and minerals. Abbott recommends using it under medical supervision, alongside a complete, balanced diet. It does not replace meals or your overall protein needs.
Product information: Abbott Nutrition · Juven ingredients and intended use (opens in a new tab)
What does the knee replacement research show?
A small randomized study of 23 knee replacement patients suggested that a combination of HMB, arginine, and glutamine might help limit the loss of quadriceps (thigh muscle) strength after surgery. This preliminary finding does not establish that every patient needs Juven or that the current product will shorten overall recovery.
Research source: Nishizaki and colleagues, 2015 · HMB, arginine, and glutamine after total knee arthroplasty (opens in a new tab)
Abbott’s wound-healing evidence includes a study measuring a marker of collagen formation in older adults using a wound-healing model. That is different from showing that knee replacement incisions heal in two weeks.