Prosthesis or arthroplasty is the replacement of a joint , usually impaired by osteoarthritis or necrosis of shoulder , hip or the knee ; for the combination of metal alloys , good of titanium , polyethylene to relieve pain and return the lost mobility .
Depending on the deterioration of the joint , a total or only partial replacement is required .
The prosthetic results _ with correct techniques and proper use usually have long duration , but to despite be scarce , Certain complications may occur which we we must anticipate .