A ruptured posterior cruciate ligament is reconstructed when the identified knee instability significantly impedes daily functioning or makes it impossible to take up physical activity. A factor that should be taken into account is a disturbance in the biomechanics of the lower limb secondary to PCL rupture, which translates into a significant increase in overload and thus acceleration of degenerative changes in the knee. People under 40, active or physically working people benefit most from PCL reconstruction surgery. In the case of a sedentary lifestyle, old age and mild symptoms, systematic rehabilitation is a sufficient method of treatment.

The length of the rehabilitation process after the reconstruction of the posterior cruciate ligament is influenced by many factors, including the functional state of the knee before the procedure, the presence of additional damage to the joint, the type of material used for the graft (from own tendons or muscles, donor or artificial implant), and the patient's involvement in the physiotherapy process after the procedure. In the case of PCL reconstruction using the patient's own tissues, the minimum rehabilitation time is about 3 months. You can start practicing sports 8 months after the treatment. Rehabilitation time may be shorter when using the Internal Bracing method, which consists in repairing broken PCL without the need to collect a graft.

Walking is possible already on the second day after the operation, provided that the operated limb is relieved with elbow crutches. A special orthosis is also placed on the knee to protect the tibia from posterior displacement relative to the femur, which is to prevent the PCL ligament graft from stretching. Free walking with full load on the limb and without an orthosis is possible when the physiotherapist determines that the knee is fully prepared and trained for it, and moreover, walking does not cause recurrence of swelling or pain in the joint. The time of weaning off the crutches and orthosis is usually 6-8 weeks after the surgery.