Artificial knee joints have been consistently developing and improving for almost 50 years. Knee prostheses today have characteristics very similar to normal knees. The meniscus of the artificial joint is manufactured from Polyethylene that has been treated with radiation or additional antioxidants. Implants are made of cobalt chrome, titanium, or ceramic material.
There are numerous knee prostheses types and models. Specialists will offer patients advice and assistance in selecting an artificial knee joint to assure they choose the one most suitable.
Artificial knee joints have an expected life span of over 25-30 years, although the actual lifespan of the artificial joint does depend on each individual. Nevertheless, 85-90% of patients generally get about 20 years of good use out of their artificial joint.