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Knee Arthoplasty

General Information

A knee arthoplasty is a knee replacement procedure used in patients who have severe pain in the knee or has a deteriorating joint. During the arthoplasty procedure, a surgeon will remove the damaged knee and replace it with a durable joint, made from quality polymers, plastic and metal to create a functional knee so you can get back to walking without pain.

Reasons for Knee Arthoplasty

This procedure is beneficial for anyone who has a deteriorating or damaged knee. There are many reasons why an individual would need a knee replacement, including:

  • Bone is damaged by osteoarthritis
  • Knee is deteriorating with rheumatoid arthritis
  • You have trouble climbing stairs or walking due to moderate or severe pain
  • Pain in the knee, even at rest
  • The kneecap is deformed
  • Other methods have not helped, including walking with a cane or losing weight


In order to determine if a patient needs a knee arthoplasty procedure, the doctor will thoroughly examine the knee. Methods of testing before a surgical procedure include:

  • Physical exam of the knee
  • X-ray
  • MRI
  • CT Scan
  • Aspiration -- to check the fluid around the knee
  • Medical exam
  • Blood testing
  • Electrocardiogram
  • Urinalysis


On the day of the surgery, the following steps are taken during an arthoplasty:

  • Patient is placed under general anesthesia
  • The knee will be placed into a bent position to have full access to the joint
  • The area is sanitized, then an incision is made over the knee
  • Damaged joints are surgically removed
  • The artificial joint is inserted into the knee and attached to surrounding bones
  • The surgeon moves and rotates the leg and knee to ensure the artificial knee is properly placed
  • Sutures close the incision

What to Expect

After the surgery, you should expect to stay in a hospital for at least a day for observational purposes. Pain medication and nerve blockers are administered to help you with pain management. Even after the surgery, you are encouraged to slowly begin moving your leg to prevent clotting or swelling.

As you recover, your doctor may suggest the following physical therapy routine:

  • Slowly walking, starting indoors and then moving outside as mobility increases
  • Begin walking up and down stairs and slowly begin your daily routine
  • Engage in knee exercises throughout the day to strengthen the muscle and joints