The media giveth sensationalism, and the media taketh away.

reddit - "So that "new" ligament? Here's a study from 2011 that shows the same thing. It's not even close to a new development and has been seen many times over the past 100 years." Summary quote: "The significance of the Belgian paper was to link [the ligament's] functionality to what they called "pivot shift", and knee reinjuries after ACL surgery. The significance of this paper, I believe, is that in the near future surgeons performing these operations will have an additional ligament to inspect and possibly repair during ACL surgery, which will hopefully reduce recurrence rates, and likely the rates of developing osteoarthritis in the injured knee down the line."