Knee replacement surgery is a common procedure performed to relieve pain and restore function in severely diseased knee joints. The surgery involves removing damaged bone and cartilage from your knee joint and replacing it with an artificial joint made of metal alloys, high-grade plastics, and polymers.
Knee replacement surgery is typically recommended for individuals with severe knee damage, most commonly from arthritis. Other conditions that may necessitate knee replacement include avascular necrosis, certain knee injuries, and bone dysplasia.
Knee arthritis, meanwhile, is a degenerative condition where the cartilage in the knee joint wears down, causing pain and stiffness. It can be managed with medications, physical therapy, and lifestyle modifications. However, if arthritis becomes severe and affects daily life, knee replacement surgery may be recommended, where the damaged cartilage and joint are replaced with an artificial implant.
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Knee replacement aims to alleviate pain, restore mobility, and improve the quality of life for individuals with advanced knee arthritis.
The procedure is performed under general or spinal anesthesia. The surgeon makes an incision in the knee area, removes the damaged parts of the knee joint (including the kneecap, tibia, and patella), and replaces them with the prosthetic implant. The surgery typically takes between 1 to 2 hours.
The damaged or arthritic knee joint, replaced with an artificial joint, is often referred to as a “new knee.” This artificial joint, known as a prosthesis, is made up of metal alloys, plastics, and polymers designed to mimic the function of a natural knee joint. During the surgery, the prosthesis is carefully positioned and attached to the bone using specialized surgical techniques, sometimes with the use of cement to secure the components to the femur and tibia.
There are two main types of knee replacement surgery: Total Knee Replacement (TKR) and Partial Knee Replacement (PKR). In TKR, the entire knee joint is replaced, while in PKR, only a part of the knee is replaced. The choice between TKR and PKR depends on the extent of knee damage and the patient’s overall health. Both procedures may involve the use of bone cement to secure the prosthetic components.
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Undergoing knee replacement surgery can bring about transformative changes in a person’s life. The procedure offers several key benefits:
While knee replacement surgery is a common and generally safe procedure, it does carry potential risks and complications. These include:
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On the day after surgery, recovery and rehabilitation are key aspects of the journey after knee replacement surgery. This period involves a structured plan that aims to restore strength, mobility, and function in the knee, including the shin bone (tibia) and thigh bone (femur).
Key elements of the recovery and rehabilitation process include:
Knee replacement surgery, also known as total knee arthroplasty, is a surgical procedure in which a damaged knee joint is replaced with an artificial knee joint, made of metal and plastic.
It is typically recommended for people who have severe knee arthritis or a damaged knee joint that causes persistent pain and limits their daily activities.
The common reasons for knee replacement surgery include osteoarthritis, rheumatoid arthritis, post-traumatic arthritis, and avascular necrosis.
The possible risks and complications may include infection, blood clots, damage to blood vessels or nerves, implant failure, stiffness, instability, and persistent pain.
Knee replacement surgery is typically performed under general anesthesia. During the surgery, the damaged surfaces of the knee joint are removed, and the new knee joint, made of metal and plastic, is implanted.
After the surgery, you will stay in the hospital for a few days. You will be given pain medication, and a physical therapist will help you start walking with the help of crutches or a walker. Rehabilitation exercises will be prescribed to improve range of motion and strength.
The recovery time after knee replacement surgery varies for each individual. It generally takes about 3 to 6 months to recover and regain normal activities fully.
The benefits include reduced pain, improved mobility, improved quality of life, and the ability to engage in activities that were once limited due to knee pain or stiffness.
The longevity of a knee replacement depends on various factors, such as the patient’s age, activity level, and overall health. On average, a knee replacement can last for 15 to 20 years.
Knee replacement surgery is typically covered by health insurance, including Medicare and Medicaid. It is advisable to check with your insurance provider to determine the coverage details and any out-of-pocket expenses.
Knee replacement surgery is a highly effective treatment for severe knee damage, offering significant pain relief and improved mobility. By understanding the procedure, its benefits, and potential risks, patients can make informed decisions about their treatment options.
Remember, it’s essential to discuss this with your healthcare provider to understand if this procedure is the right choice for you.