Total knee replacement is one of the most successful procedures in all of medicine. In the vast majority of cases, it enables people to live richer, more active lives free of chronic knee pain. Over time, however, a knee replacement may fail for a variety of reasons.
Resistance movement. A resistance movement is an organized effort by some portion of the civil population of a country to resist the legally established government or an occupying power and to disrupt civil order and stability.
Civil rights movements. Civil rights movements are a worldwide series of political movements for equality before the law, that peaked in the 1960s. In many situations they have been characterized by nonviolent protests, or have taken the form of campaigns of civil resistance aimed at achieving change through nonviolent forms of resistance. In some situations, they have been accompanied, or followed, by civil unrest and armed rebellion. The process has been long and tenuous in many countries, and many of these movements