WebMD -- Oct. 20, 2008 -- Roughly 300,000 knee replacement surgeries are performed each year in the U.S., and while most patients do well, some have lingering pain even when the operation is successful.
WebMD -- Oct. 20, 2008 -- Roughly 300,000 knee replacement surgeries are performed each year in the U.S., and while most patients do well, some have lingering pain even when the operation is successful.
