What it is
The surgeon still does the operation, but a computer system (sometimes with a CT scan beforehand) helps plan the implant position, and a robotic arm helps guide the cuts.
Who it's usually for
The same people who need a knee replacement. Whether a robot is used mostly depends on the surgeon and hospital.
Pros and cons
✓ Pros
- Studies show more precise positioning of the implant.
- Some studies report slightly less early pain, though results vary.
⚠ Cons and risks
- So far, studies haven't clearly shown better long-term function or implant life than a standard knee replacement.
- The operation can take longer, and some systems need an extra CT scan.
- Not every hospital has one; the surgeon's experience still matters most.
Recovery times are typical ranges; yours may be different. Your surgeon can tell you what to expect.
What recovery is like
Recovery is the same as a standard knee replacement: daily exercises for several weeks, which can be uncomfortable at first and get easier with time.
Questions to ask your surgeon
- What does the robot add in your hands?
- How many robotic knees have you done?
- Would my result be different without the robot?
When to get help quickly: Get help the same day for a hot, red, swollen joint with fever, if you can't put weight on your leg after an injury, or, after surgery, for fever, wound drainage, or new calf pain or swelling. For chest pain or sudden shortness of breath, call 911.
What surgeons say in their videos
Videos from different surgeons and doctors, newest first. They share their own views, and we don't rank or endorse any of them.
Common questions about robotic-assisted knee replacement
What is robotic-assisted knee replacement?
The surgeon still does the operation, but a computer system (sometimes with a CT scan beforehand) helps plan the implant position, and a robotic arm helps guide the cuts.
Who is robotic-assisted knee replacement for?
The same people who need a knee replacement. Whether a robot is used mostly depends on the surgeon and hospital.
What is recovery like after robotic-assisted knee replacement?
Recovery is the same as a standard knee replacement: daily exercises for several weeks, which can be uncomfortable at first and get easier with time.
What are the risks of robotic-assisted knee replacement?
So far, studies haven't clearly shown better long-term function or implant life than a standard knee replacement. The operation can take longer, and some systems need an extra CT scan. Not every hospital has one; the surgeon's experience still matters most.
Getting ready
Losing extra weight, exercising before surgery, stopping smoking and getting your home ready can make surgery safer and recovery easier.
How to get ready for surgery →Find a surgeon
Look up hip and knee surgeons in your state, from public records.
Find a hip & knee surgeon →Other knee surgeries
Sources
We base this page on these major medical organizations and studies. How we write our pages.
General information written for Hip & Knee Surgery, not by the surgeons in the videos. For education only; not medical advice. Last reviewed October 2026.