Knee Replacement
The knee is composed of three compartments.
- 1. Medial Compartment.
- 2. Lateral Compartment.
- 3. Patellofemoral Compartment.
A. Osteoarthritis is a degenerative condition affecting articular cartilage, which is limited to a single compartment of the knee, known as unicompartmental arthritis.
B. Knee arthritis can affect all the three compartments but usually starts with one compartment. In the sitting of a single compartment knee arthritis, the replacement of a single compartment can be contemplated. It involves replacing the damaged portion of the joint. Unicompartmental knee arthroplasty offers both the possibility of a more rapid recovery as well as a conservative approach to the treatment of knee arthritis.
C. Total knee replacement (TKR) is one of the most successful medical innovations developed in the last century. It can substantially improve patients’ quality of life, and has been well validated. The lower part of the replacement knee joint consists of a flat metal plate and stem that implants in the tibial bone. This tibial tray can be either cobalt chrome alloy or titanium alloy. It can be fixed by either cement or bone “ingrowth”. Next, a polyethylene insert is clipped into the tibial tray to serve as the new knee bearing surface. The upper part of the replacement knee joint consists of a contoured metal shield that fits around the lower end of the thigh bone (femur).
Unicompartmental Knee Replacement
Knee arthritis can affect all the three compartments but usually starts with one compartment. In the sitting of a single compartment knee arthritis, the replacement of a single compartment can be contemplated. It involves replacing the damaged portion of the joint. Unicompartmental knee arthroplasty offers both the possibility of a more rapid recovery as well as a conservative approach to the treatment of knee arthritis
Total Knee Replacement
Total knee replacement (TKR) is one of the most successful medical innovations developed in the last century, can substantially improve patients’ quality of life, and has been well validated. The lower part of the replacement knee joint is comprised of a flat metal plate and stem that implants in the tibial bone. This tibial tray can be either cobalt chrome alloy or titanium alloy. It can be fixed by either cement or bone “ingrowth”. Next, a polyethylene insert is clipped into the tibial tray to serve as the new knee bearing surface. The upper part of the replacement knee joint consists of a contoured metal shield that fits around the lower end of the thigh bone (femur).
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