Knee Reconstruction: What It Is and What to Expect
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor provides Knee Reconstruction?
An orthopedic surgeon performs knee reconstruction. An orthopedic surgeon is a doctor trained to operate on bones, joints, and ligaments. Your regular doctor may send you to one of these surgeons if your knee is badly damaged and other treatments have not helped enough.
What it is
Knee reconstruction is surgery that repairs or rebuilds parts of the knee joint. The most common type is ACL reconstruction, which replaces a torn ligament with a piece of tendon from your own body or a donor.
Why a doctor might recommend it
Doctors usually suggest this surgery when the knee is unstable or gives way, and simpler treatments like physical therapy and bracing have not worked. People who want to return to sports often choose surgery after a ligament tear. The decision depends on your goals and your injury.
How to prepare
- Ask your surgeon which medicines you should stop taking before surgery and when to stop them.
- Arrange for someone to drive you home and stay with you the first day.
- Follow the instructions about when to stop eating and drinking the night before.
- Prepare your home so you can move around easily with crutches or a walker.
What happens during it
You will receive anesthesia so you feel no pain. Most knee reconstructions are done through small cuts using a camera called an arthroscope. The surgeon replaces the damaged ligament with new tissue anchored to the bone. The operation usually takes one to two hours, and most people go home the same day.
Recovery
Recovery takes months, not days. Most people use crutches for the first few weeks and start physical therapy soon after surgery. Returning to sports often takes six months to a year or more.
Risks and side effects
Possible problems include infection, blood clots, bleeding, stiffness, and lasting pain. The new ligament can also re-tear in some cases. Your surgical team will explain steps that lower these risks.
Who performs it
Board certified orthopedic surgeons perform knee reconstruction, many with extra training in sports medicine. When choosing a surgeon, ask how often they perform this operation. A primary care doctor can help you find a qualified surgeon and coordinate your care.
Common questions
Is knee reconstruction the same as knee replacement?
No. Reconstruction repairs or rebuilds soft tissues like ligaments. Replacement removes damaged bone and cartilage and puts in artificial parts, which is more common for severe arthritis.
Will I walk right after surgery?
Most people use crutches at first. Many can put some weight on the leg within days. Your surgeon will give you specific instructions based on your operation.
Can a direct primary care doctor help with knee problems?
Yes. A direct primary care doctor charges a flat monthly fee instead of billing insurance. They can evaluate knee pain, order imaging, and start treatments like bracing or therapy referrals. If surgery is needed, they will refer you to an orthopedic surgeon.
Sources
- MedlinePlus - ACL reconstruction
- MedlinePlus - Partial knee replacement: MedlinePlus Medical Encyclopedia
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
