New Ligament in Human Knee

     Recently discovered, scientists have identified a new ligament in found in human knees. Now known as ALL, anterolateral ligament, this band of fibrous tissue now has a name.  This fibrous tissue was always known to be in the knee, but it was never described until recently. When scientists dissected 41 human knees, all but one was found to have this ligament ALL. Running along the front side of the knee, ALL can be the reason why some people who have had ACL surgery in the past still have problems with their knee giving out during activities. 

    Although 40 of the knees in the dissection did have this ALL ligament, it is puzzling that the one person did not.  Perhaps the reason ALL was not present in the one person could be due to the genetic background? Perhaps the real reason why the person did not have the ALL ligament in his or her knee will be uncovered soon.