As more and more people move into cities and towns, a number of factors cause pollution: 1  the physical disturbance of land due to construction of houses, industries, roads, etc.; 2  chemical pollution from industries, mines, etc.; 3  inadequate sewage collection and treatment; 4  increase in fertilisers to grow more food. 5  litter, which causes disease and ...
In the knee joint, operations to exchange the original implant (prosthesis) with a new one have a good chance of success. The decision to do a revision surgery depends in part on the type of bacteria that has infected the joint. In some uncommon cases, the type of bacteria is so harmful that a revision is not possible.
During knee replacement surgery, knee joints damaged by arthritis can be replaced with an artificial knee, also known as a prosthetic knee. A prosthetic knee can help restore mobility and reduce pain in the affected knee. When the joints of both knees are damaged, double knee replacement may be recommended.