Figure 3. Percent of elderly patients in severe pain before and after knee replacement surgery, by type of activity

Internet Citation: Figure 3. Percent of elderly patients in severe pain before and after knee replacement surgery, by type of activity. December 2014. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/factsheets/aging/osteoria/osteoriaf3.html