An artificial knee joint has metal alloy caps for your thighbone and shinbone and high density plastic to replace damaged cartilage.
Plastic knee cap replacement.
Knee cap replacement is a type of partial knee replacement surgery in which only patellofemoral articulation is replaced with implants.
Knee replacement also called knee arthroplasty or total knee replacement is a surgical procedure to resurface a knee damaged by arthritis.
However many people who have only limited arthritis of the knee are concerned about replacing the entire joint.
If you see lower end of femur it has a groove for patella called patellofemoral groove.
To understand this surgical procedure we have to understand knee anatomy first.
To be honest i was surprised to learn that knee cap or patellar pain is a common complication of knee replacement.
The study authors found that in about 1 4 of the knee replacement patients with chronic knee cap pain blood flow in the knee cap area markedly decreased with flexing the knee.