A new knee, surgically implanted during a knee replacement, works by replacing damaged bone and cartilage with artificial components, restoring smooth joint movement and reducing pain.
Components of an Artificial Knee
The new knee is composed of metal and plastic parts. Here's a breakdown:
- Metal Parts: Metal components are used to replace the damaged ends of the thighbone (femur) and shinbone (tibia).
- Plastic Parts: Plastic components replace the cartilage on the top of the shinbone and the back of the kneecap (patella), ensuring smooth gliding surfaces.
The Replacement Process
- Removal of Damaged Tissue: The damaged bone and cartilage in the knee joint are removed during surgery.
- Implantation: The metal and plastic parts are precisely fitted to the ends of the thighbone, shinbone, and kneecap.
- Restoration of Movement: Once in place, these artificial components mimic the natural function of a healthy knee, allowing for smooth and pain-free movement.
- Post-Surgery: After surgery, patients rest in a recovery area. The goal is to regain strength, movement, and stability in the new joint.
How it All Works Together
The metal and plastic components of the artificial knee work together:
- The metal parts provide a stable base.
- The plastic parts act as a cushion and gliding surface, reducing friction.
- Together, they enable a smooth and pain-free range of motion.
This new, artificial joint effectively addresses joint pain and mobility issues caused by conditions like arthritis or injury. The new knee is durable, designed to last many years and restore mobility. The new knee is not a natural knee. It does the job through a series of mechanical components that work together.
