How Coxarthrosis Progresses?

How hip osteoarthritis progresses?
It is usually a slow disease course and is most often interrupted by painful crises that correspond to localized losses of cartilage. After the crisis, the residual mechanical pain is somewhat higher than previously and smaller mobility.
In other cases there is no crisis, but the pain and loss of mobility are progressive, and reduce the distance you can walk without pain.
The secondary osteoarthritis cartilage irregularities (fractures, infections, etc..) Evolve more rapidly from the beginning because there is increased friction articular cartilage that wears out.
In some cases the evolution is rapidly destructive, in months.
The evolution can be assessed at each visit with the various tables or indexes of mobility, pain and ability to perform activities. All are useful, but of course the table used for the first assessment is to be used in the successive and should not be changed because it would alter the understanding of evolution.