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Grades of Injury
The Posterior cruciate ligament (PCL) is located within the knee. Ligaments are sturdy bands of tissues that connect bones. Similar to the anterior cruciate ligament, the PCL connects the femur to the tibia. There are four different grades of classification in which medical doctor’s classify a PCL injury: Grade I, the PCL has a slight tear. Grade II, the PCL ligament is minimally torn and becomes loose. Grade III, the PCL is torn completely and the knee can now be categorized as unstable. Grade IV, the ligament is damaged along with another ligament housed in the knee (i.e ACL). With these grades of PCL injuries, there are different treatments available for such injuries.

Rehabilitation Options
It is possible for the PCL to heal on its own without surgery when it is in Grades I and II. PCL injuries that are diagnosed in these categories can have their recovery times reduced by performing certain rehabilitative exercises. Fernandez and Pugh(2012) found that following a PCL grade II diagnosis, a multimodal treatment that spanned over the course of 8 weeks consisting of chiropractic lumbopelvic manipulation, physiotherapy, and implementing an exercise program that emphasized in eccentric muscle contraction (lunges, 1-leg squats, and trunk stabilization) which proved to be an effective way to recover from the PCL injury. For Grades II and IV, operative surgery is recommended or is usually needed. Grafts is the method when addressing PCL injuries that are in need of operative surgery. With grafts, there are different methods such as the tibial inlay or tunnel method.