Knee replacement surgery
Knee replacement, also called knee arthroplasty or total knee replacement, is a surgical procedure to resurface a knee damaged by arthritis. Metal and plastic parts are used to cap the ends of the bones that form the knee joint, along with the kneecap. This surgery may be considered for someone who has severe arthritis or a severe knee injury.
Various types of arthritis may affect the knee joint. Osteoarthritis, a degenerative joint disease that affects mostly middle-aged and older adults, may cause the breakdown of joint cartilage and adjacent bone in the knees. Rheumatoid arthritis, which causes inflammation of the synovial membrane and results in excessive synovial fluid, can lead to pain and stiffness. Traumatic arthritis, arthritis due to injury, may cause damage to the cartilage of the knee.
The goal of total knee replacement surgery is to relieve knee pain and increase knee function by resurfacing the bones that meet at the knee joint. The surgeon removes damaged portions of bone at the end of the femur (thigh-bone) and top of the tibia (shin-bone) and replaces them with prosthetic components. Some surgeries also resurface the back of the patella, or kneecap.This is the largest and most complex joint. It is a hinge joint formed by the condyles of the femur, the condyles of the tibia and the posterior surface of the patella.
Risk in knee replacement: -
Knee replacement surgery, like any surgery, carries risks. They include as: -
- Infection
- Blood clots in the leg vein or lungs
- Heart attack
- Stroke
- Nerve damage
- Notify your doctor immediately if you notice:
- Fever greater than 100 F (37.8 C)
- Shaking chills
- Drainage from the surgical site
- Increasing redness, tenderness, swelling and pain in the knee
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