Weight Loss Through Exercise Alone Does Not Protect Knees (2 of 3) (image) Radiological Society of North America Share Print E-Mail Caption Knee joint of a patient without weight loss (A) showing severe cartilage defects after 48 months, and intact knee joint of a patient with a substantial amount of weight loss (B). Credit Radiological Society of North America Usage Restrictions May use with credit. 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.