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Knee Replacement Surgery – In a technology-driven world, there are plenty of manufacturers producing prosthetic devices for knee replacements. Therefore it is essential to know the parameters which decide the best fit for your condition through the basic role served by each Implants for Knee Replacement Surgery remains the same. They all help in replacing the diseased bone and countering pain.
Your surgeon would shortlist the best fit for you based on your medical condition, age, weight, anatomy, and activity level. Apart from the personal factors, there are many implants based parameters that need to be considered, to make sure you have chosen the most befitting prosthesis. Let’s read about choosing implants for knee replacement surgery.
Also Read: Why does My Knee Hurt when I bend it?
PCL – Related Features
The surgeon would analyse your posterior cruciate ligament (PCL): A large ligament that runs along the back of your knee and provides flexion to assess whether [reserving it or removing it during TKR would be helpful. There are implants to help in either stance: preservation or removal.
Gender – Specific Devices
Though the benefits of using gender-specific devices have not been known, these devices surely acknowledge the anatomical differences between the male and female and may be useful to counter minor differences between genders and may be helpful on the long term.
The foremost essential characteristic in an implant is its bio-compatibility, therefore preventing implant rejection. Ability to bear the same weight and flexion as original body parts without leaching chemicals into the body is also important. Most of the implants are made up of multiple components made from different medical-grade materials. Most of them are made from metals like titanium or cobalt-chromium based alloys. These have been known for durability and inertness. However, in many instances, they have been known to cause allergies. Ultra-high molecular weight polyethene is also used in many implants.
Read FAQ on Knee Replacement Surgery and clear your doubts.
Composition and Type of Implants for Knee Replacement Surgery
- Fixed-Bearing Prosthesis: This involves the use of polyethylene from the tibial component of the device is attached to a metal component underneath. A femoral component rolls on the cushioned surface. This method is preferred for elderly patients who have limited activity.
- Mobile-Bearing Prosthesis: These implants provide additional mobility than the fixed-bearing device and allow polyethylene insert to rotate short distances inside the metal tibial tray. They depend on additional support to allow greater rotation and hence the risk of dislocation is minimal.
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