20/07/2026
One of the biggest myths about total knee replacement is that the surgeon removes your entire knee.
That is not what happens.
In most cases, only a few millimeters of damaged cartilage and a thin layer of underlying bone are removed. The healthy bone is preserved as much as possible.
The worn joint surfaces are then resurfaced using specially designed implants:
• A metal component covers the end of the femur (thigh bone)
• A metal component covers the top of the tibia (shin bone)
• A highly durable polyethylene insert sits between them, allowing smooth, low-friction movement
In selected patients, the underside of the kneecap may also be resurfaced if it is significantly worn.
What many people don’t realize is that a knee replacement does not replace your muscles, tendons, or most of your ligaments.
These structures continue to provide strength, movement, and stability. The implants simply replace the damaged joint surfaces that are causing pain and stiffness.
The goal of surgery is not to create a “new knee.”
It is to restore smooth movement, reduce pain, and help you return to the activities that arthritis has taken away.
Understanding what actually happens during surgery often replaces fear with confidence.
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