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The posterior cruciate ligament (PCL) is one of the four main stabilizing ligaments in the knee. The primary function of the PCL is to limit the backwards motion of the tibia, thereby keeping the knee joint stable. It is a strong ligament and is consequently injured less often than the ACL, although it is thought that many PCL injuries remain undiagnosed.
An athlete can injure the PCL by falling onto the front of the knee when the knee is fully bent backwards and the foot is pointing down. The more common source of PCL injuries is that of a dashboard injury- posterior directed force from a dashboard or similar causing the tibia to be pushed backwards on the femur.
The PCL control knee orthosis applies corrective or stabilizing forces onto the tibia and femur in a manner that limits the posterior or backward sag often seen with this injury. There are a number of knee orthoses with PCL control with the Don Joy PCL knee orthosis leading the way. Again your Certified Orthotist will work with you to ensure that the most appropriate knee orthosis is provided.