Why Are Women More Prone to Knee Injuries Than Men? (video) University of Texas Medical Branch at Galveston Share Print E-Mail Loading video... Caption This video explains a new research study showing that young women who are on oral birth control have lower rates of ACL knee injuries that require reconstructive surgery. Estrogen makes this ligament more susceptible to injury and oral birth control stabilizes and lessens estrogen levels. Credit The University of Texas Medical Branch at Galveston 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.