The Rebound PCL is designed to apply a physiologically correct, dynamic force, optimal for rehabilitation of posterior cruciate ligament (PCL) ruptures, during functional (non-surgical) or post-surgical rehabilitation. The dynamic load on the tibia is generated by applying an anterior directed dynamic force on the calf area, and opposing counter forces on the anterior aspect of the thigh. A polycentric hinge with extension and flexion stops allows for range of motion adjustment. Three shear knob options permit customization of the biochemically correct posterior tibial load for each patient, and allow for adjustment in case of swelling. Lightweight brace with proprietary Sensil® silicone calf liner and doeskin thigh liner to reduce migration, while providing comfort to the user. Custom measured to provide optimal fit.