Knee replacement

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Knee replacement, also known as knee arthroplasty, is a surgical procedure performed to replace the weight-bearing surfaces of the knee joint to relieve pain and disability. It is commonly performed for patients with severe arthritis or injury to the knee joint.[1]


The first knee replacement surgery was performed in 1968 by Dr. John Insall, who used a single-piece prosthesis made of cobalt-chrome alloy. Since then, advancements in materials and surgical techniques have led to improved outcomes and increased durability of knee replacements.[2]


The knee replacement procedure involves removing the damaged or worn-out portions of the knee joint and replacing them with artificial components made of metal alloys, high-grade plastics, and polymers.[3] The procedure can be performed using either traditional open surgery or minimally invasive techniques, which involve smaller incisions and less tissue disruption.


After the surgery, patients are typically hospitalized for a few days and receive physical therapy to regain strength and range of motion in the knee joint.[4] It can take several weeks or months to fully recover from knee replacement surgery, and patients are advised to avoid high-impact activities and follow their doctor's instructions regarding exercise and rehabilitation.[5]


While knee replacement surgery is generally considered safe and effective, there are potential risks and complications associated with the procedure, including infection, blood clots, nerve damage, and joint dislocation.[6] Patients with certain medical conditions or risk factors may not be suitable candidates for knee replacement surgery.[7]

Success Rate

The success rate of knee replacement surgery is high, with most patients experiencing significant improvement in pain and mobility. According to the American Academy of Orthopaedic Surgeons, more than 90% of knee replacement patients report a significant decrease in pain and an improvement in their ability to perform daily activities.[8]


Knee replacement surgery is a common and effective procedure for treating severe arthritis and other conditions affecting the knee joint.[9] With advancements in materials and techniques, the procedure has become safer and more durable, allowing patients to enjoy improved mobility and quality of life.[10]


  1. What Not to Do After Knee Replacement?
  2. Total Knee Arthroplasty (TKA): Essentials
  3. How to Get Rid of Knee Fat - Fivali
  4. Minimally invasive total knee arthroplasty
  5. What Helps Nerve Pain After Knee Replacement
  6. Durable patient-specific knee implants - PMC
  7. How Long Should I Ice My Knee - Fivali
  8. How long does a knee replacement last?
  9. Why Does My Knee Feel Tight? - Fivali
  10. Preoperative education for knee replacement