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Total Knee Replacement

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About Total Knee Replacement

A total knee replacement, also called total knee arthroplasty, is a surgery performed to correct the problem associated with a worn out knee. The knee joint comprising femur (thighbone) and the tibia (shinbone) may be damaged from medical conditions, injuries, or from repetitive motion. 

As a result, the knee is less able to cushion stress to the joint and pain with movement or swelling may occur. Because cartilage (a soft tissue like a cushion that absorbs stress and allows the joint to glide smoothly) cannot fully repair itself, your orthopaedic surgeon may recommend knee replacement surgery to be performed.

The Procedure

Knee replacement surgery involves either resurfacing the entire joint (total knee arthroplasty), or repairing the damaged parts (partial knee arthroplasty). During the procedure, the damaged parts are removed and replaced with implant(s) made of metal, ceramic, or plastic. The procedure is performed at a hospital in the operating room. Anaesthesia will be administered so that either you sleep throughout the surgery (general anaesthesia) or so that you are numb from the waist down (spinal block). An incision, or cut, will be made on the front side of the knee and the damaged knee will be replaced with prosthesis (artificial joint). The surfaces of the joint are reshaped to accommodate the prosthesis. The orthopaedic surgeon takes great care to test the fit and alignment of the prosthesis during the procedure to ensure that the prosthesis is a good fit for the body. If the prosthesis fits correctly, the parts are secured to the thighbone, kneecap, and shinbone, and a new joint is formed which is mobile, pain free and long-lasting.

Here are factors to consider Total Knee Replacement:
 
  • Is the pain severe enough to restrict work, recreation and ordinary activities of daily living?
  • Have you unsuccessfully tried other non-operative procedures such as injections and physical therapy?
  • Do you have knee deformity (bow legged or knock kneed) that hinders normal function of the knee?
  • Are you unable to tolerate pain after taking medications?
  • Do you need to take medication regularly?
  • Is there significant stiffness in the knee?
  • Are the joints damaged with arthritic conditions, such as osteoarthritis, rheumatoid arthritis or post-traumatic arthritis?

If you answered YES to any of these questions, then Total Knee Replacement is worth exploring.

Post Op Recovery:
Rehabilitation begins as soon as possible after your operation. You return to the ward in the afternoon/evening and being assessed by a physiotherapist to see if you are able to stand and take a few steps with your new knee with their help. When you can walk well without limping and feel confident, you can stop using your walking aids. You will be given compression stockings to wear or have a pump which inflates pads to compress your feet. These help to maintain circulation and prevent blood clots after your operation but do not restrict you moving your legs. There will be some pain, swelling and bruising which is normal. 
Usually you start going to the washroom independently with some support by 2nd or 3rd day and stair climbing with support starts at around the same time. It is important to move your knee as soon as possible after the operation unless your surgeon or physiotherapist tells you not to. This will minimise stiffness, pain and swelling, and reduce the formation of scar tissue. 
Regular physiotherapy after your surgery will help you to get the most out of your new joint. Physical activity will help you have a faster recovery and will get your blood moving. This will also reduce your risk of developing a blood clot. Walking is a good way to build up and maintain the strength in your leg muscles. By 4 to 6 weeks after your surgery, you should be walking with more strength and be able to walk longer distances

Customised Knee Replacement Benefits
  • Reduces surgical steps
  • Reduces instruments and trays
  • Reduced cost
  • Cuts are based on patients’ true mechanical axis
  • Reduces blood loss
  • Potential to decrease overall recovery time
Customised Knee Replacement Benefits
  • Allows the surgeon to intraoperatively customize the surgical plan
  • Provides the precision and accuracy
  • Planning is done dynamically during surgery
  • Cuts are based on patients’ true mechanical axis
  • Reduces blood loss
  • Potential to decrease overall recovery time

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