About: http://webisa.webdatacommons.org/158086398

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Knee replacement is a surgical procedure ??? performed in the US since the 1960s ??? in which a diseased or damaged joint is replaced with an artificial joint called a prosthesis.
http://www.w3.org/ns/prov#wasQuotedFrom	kayalortho.com