First I've seen on details of the injury:
"Source confirms tibiofemoral dislocation, ruptured ACL for Bridgewater. 'Trainers may have saved his leg and career by quick action.'"
They aren't kidding. A tibfem split carries a high chance (basically 50/50 when I learned it) of causing damage to the popliteal artery, which is a sub-branch of the femoral artery, and serves as the main artery that runs down to your lower leg. Fixing that requires prompt discovery, and even then there's a chance that full and proper use of your leg might not return.
And if it's only his ACL that is ruptured, that is also fortunate. The knee is held together by 4 sets of ligaments, two cruciate (inside, going across) and two collateral (outside, running vertically). We should all be familiar with the anterior cruciate ligament, and what it does. It's the two collateral ligaments (medial and lateral) that are torn during a knee dislocation.
The MCL is responsible for helping your knee bend backwards, and absorbing pressure while the knee is bent. It's commonly injured in skiing, and surprisingly, swimming. It's injured when there is too much force coming from the back of the knee.
The LCL is injured when there is too much pressure coming from the inside (from the body outwards) of the knee, and is usually injured by a direct blow, though it can occur through non-contact. If other ligaments are blowing, this one will go too. Injury to this ligament can be serious, as another artery and a nerve branch run along this tissue.
So I would be really surprised if it is only the ACL. Treatment will be dependent on putting the knee back in place first, and then hoping there isn't any real damage to the nerves or arteries.
My best guess is recovery will be similar to that of Marshall Newhouse*, and I'm not sure if he every fully recovered.
Update: it was Derek Sherrod who had that terrible leg injury, not Newhouse. That was pointed out down the thread. I apologize.
I spoke about his injury when we were discussing his future that season he ended up getting cut. His injury was still hampering his play 2+ seasons after it had occurred, and he still wasn't near where he was before.
