Replace, But Don't Rehospitalize (IMAGE) Brown University Caption There are no good tools to assess the risk that people who get knee and other joint replacement procedures will need to return to the hospital, a new study finds. Credit Pixabay Usage Restrictions with credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.