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.
A new total knee replacement that saves all of the ligaments can make a personâs knee feel and move just like the original. During a traditional total knee replacement, the surgeon must remove the island of bone to which the anterior cruciate ligament (ACL) and the posterior cruciate ligament (PCL) are attached. The new knee features a shape that protects that island of bone and saves the ligaments.