What is knee replacement surgery?
Knee replacement surgery involves removing damaged portions of the knee joint and replacing them with artificial components made of metal, ceramic or plastic. The procedure is usually recommended for individuals with severe arthritis, injury or other conditions that limit their ability to perform daily activities.
You may require knee replacement surgery, if:
You have severe knee pain or stiffness that limits your daily activities, such as walking, climbing stairs or standing.
You have not achieved adequate relief from medications, physical therapy or other conservative treatments.
Your knee has become deformed or misaligned.
You have advanced arthritis, such as osteoarthritis or Rheumatoid arthritis, affecting the knee joint.
Consult with your orthopedic surgeon to determine whether knee replacement surgery is the right option for you.
What should I expect during the surgery?
Knee replacement surgery typically lasts one to two hours and is performed under general or regional anesthesia. The surgeon makes an incision above the knee to access the joint, removes the damaged portions and implants the prosthetic components. The incision is then closed and the knee is bandaged.
What are the risks associated with knee replacement surgery?
As with any surgical procedure, knee replacement carries certain risks, including:
Infection at the surgical site
Blood clots in the legs or lungs
Nerve or blood vessel damage
Persistent pain or stiffness
Prosthetic wear or loosening over time
Discuss these risks with your surgeon to understand how they can be minimized.
How long does recovery take?
Recovery from knee replacement surgery varies from person to person. Typically:
Hospital stay lasts one to three days.
Physical therapy begins shortly after surgery and continues for several weeks.
Most patients can walk with assistance within a few days and resume light activities within four to six weeks.
Full recovery including regaining strength and mobility, may take three to six months.
Your surgeon will provide a personalized recovery plan based on your age, health and activity goals.
Will I need physical therapy after surgery?
Yes; physical therapy is an essential part of the recovery process. It helps rebuild strength, improve mobility and ensure proper functioning of the knee. Your therapist will guide you through exercises tailored to your condition and progress.
How long will the artificial knee last?
Modern knee prosthetics are designed to last 15 to 20 years or longer, depending on factors such as activity level, weight and overall health. Revision surgery may be necessary if the prosthetic wears out or becomes damaged.
Can both knees be replaced at the same time?
Yes, bilateral knee replacement is an option for individuals with severe damage in both knees. However, it requires a longer recovery period and may not be suitable for patients with certain health conditions. Speak with your surgeon to assess whether this option is right for you.
Will I be able to return to normal activities?
Most patients experience significant improvement in mobility and quality of life after knee replacement surgery. While high-impact activities, such as running or jumping, should be avoided. You can enjoy low-impact exercises, like swimming, biking and walking.
How can I prepare for knee replacement surgery?
Preparation is crucial for a successful outcome. Steps may include:
Undergoing pre-surgery evaluations and tests.
Discussing current medications with your doctor to determine what should be adjusted.
Arranging for help at home during your recovery period.
Practicing exercises to strengthen muscles around the knee.
