Two Belgian doctors revealed that they have discovered a new knee ligament whose existence was last suspected more than 130 years ago.

The ALL runs alongside the CLL ligament on the outside of the knee and plays a key role in the stability of the knee. The researchers added that injury to this ligament could be the reason why some people who undergo surgery to repair their ACL ligament tear it once again.
“The precise anatomical knowledge of this enigmatic structure delivered by this study could be highly relevant for clinical practice. However, further research is needed to establish the function of the ALL and to determine its role in clinical knee injuries”, the researchers wrote in their report.
Source-Medindia