Figure 4. Elderly patients' ability to walk more than 10 blocks before and after knee replacement surgery, by age

Internet Citation: Figure 4. Elderly patients' ability to walk more than 10 blocks before and after knee replacement surgery, by age. Content last updated December 2014. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/factsheets/aging/osteoria/osteoriaf4.html