A number of classification systems are used for gradation of osteoarthritis: 1  WOMAC scale, taking into account pain, stiffness and functional limitation. 2  Kellgren-Lawrence grading scale for osteoarthritis of the knee. It uses only projectional radiography features.
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1 Visit Medicare on the web. 2  Call 1-800-MEDICARE (1-800-633-4227). 3  TTY users should call 1-877-486-2048. 4  To find a plan thatâs right for you call your local Area Agency on Aging (AAA). 5  To find the AAA where you live visit the VirginiaNavigator website and select âArea Agency on Agingâ and put in your zip code.