Damaged Knee Cartilage (image) FECYT - Spanish Foundation for Science and Technology Share Print E-Mail Caption Osteoarthritis is characterized by impairment of cartilage and subchondral bone. In this image, an example of damaged knee cartilage is shown. Credit Kristie Wells Usage Restrictions None Share Print E-Mail 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.