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A PCL injury occurs when the posterior
cruciate ligament becomes damaged through a pull, twist, tear
or other disruption of the knee.
An injured PCL reduces stability in
the knee and decreases support to the knee joint during athletic activity.
Injuries can vary in severity, ranging from a minor sprain to a complete tear or rupture of the ligament.
Because of the force mechanism necessary to rupture the PCL, isolated complete PCL tears are not common. These complete tears occur more frequently in combination with injuries to other ligaments of the knee.
Injuries usually occur during an activity when there is a direct
blow to the knee, especially while the knee is bent and the foot planted.
Less serious injuries are treatable with physical therapy and bracing, whereas a completely torn ligament will likely require surgery.
PCL surgery rebuilds the ligament using part of the patellar tendon to reconstruct the injured ligament.
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