kcdoubleeagle
Waterboy
TC,
Classically, the knee is stabilized by the 2 side (collateral) ligaments and a front (anterior cruciate ACL) ligament and back (posterior cruciate PCL) ligament. The cruciate ligaments connect the lower portion of the thigh (femur) bone with to the upper surface of the shin (tibia) bone, each crossing the knee joint (thus the name cruciate).
The PCL functions mainly in preventing the tibia from traveling backwards on the femur, known as posterior drawer sign. PCL tears are graded I- III with III being the worst. These grades are classified by the amount of backward tibial movement observed when the knee is bent at 90 degrees. Mild injury does not cause instability. More serious injury leads to knee instability with the shin bone having a tendency to slide backwards when the knee is bent at 90 degrees...............The main pain secondary to this injury is felt in the CALF. Once injured the PCL NEVER completely heals and must be doubly protected by strengthening of the quadracep, hamstring and calf muscles. Repeated injuries can lead to the need for surgical intervention.
GO MARIO WILLIAMS!!!! Oh..sorry wrong thread.....I guess all this genius talk is getting me confused.