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Why would I need knee replacement surgery?

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Osteoarthritis is the main reason why people go for knee replacement surgery. The age-related condition is very common and occurs when cartilage -- the cushion between the knee and the bone joints -- breaks down.

Other reasons include:

  • Rheumatoid arthritis : Rheumatoid arthritis is when the body’s immune system attacks and destroys the lining of the knee.
  • Deformities: People with bowed legs or “knock-knees” often get surgery to restore the position of the knee.
  • Knee injuries : A broken bone or torn ligaments around the knee sometimes will result in arthritis that causes great pain and limits movement.
  • Loss of blood flow: Doctors will recommend surgery if blood stops flowing to the bones (a condition called either osteonecrosis or avascular necrosis).

From: What’s Knee Replacement Surgery? WebMD Medical Reference

SOURCES:

American Academy of Orthopedic Surgeons: “Total Knee Replacement.”

Arthritis Foundation: “Osteoarthritis.”

National Institutes of Heath: “Knee Replacement.”

Arthritis Research: “What are the different types of knee replacement surgery?"

Mayo Clinic: “Knee Replacement.”

American Academy of Orthopedic Surgeons: “Knee Replacement Implants.”

Cleveland Clinic: “Total Knee Replacement.”

Reviewed by James Kercher on April 22, 2019

SOURCES:

American Academy of Orthopedic Surgeons: “Total Knee Replacement.”

Arthritis Foundation: “Osteoarthritis.”

National Institutes of Heath: “Knee Replacement.”

Arthritis Research: “What are the different types of knee replacement surgery?"

Mayo Clinic: “Knee Replacement.”

American Academy of Orthopedic Surgeons: “Knee Replacement Implants.”

Cleveland Clinic: “Total Knee Replacement.”

Reviewed by James Kercher on April 22, 2019

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What are the different types of knee replacement surgery?

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