Hi,
Thanks for writing in. The knees are the most commonly injured part of the body. The largest
joint, the
knee is used for everything from standing up, sitting, to walking, running, etc. It's a weight-bearing joint that straightens, bends, twists and rotates. All this motion increases your risk of acute or overuse knee injuries.
As you already have a history of trauma there is a chance of ligament injury or meniscal tear or tendinitis.