Posterior cruciate ligament reconstruction surgery takes about 1 to 2 hours, depending on the proficiency of the surgeon and the condition of the patient. Posterior cruciate ligament reconstruction surgery is mainly used for the treatment of posterior cruciate ligament rupture, and is an arthroscopic minimally invasive surgery. The surgery is usually performed under lumbar and rigid anesthesia, and is completed through two minimally invasive incisions at the front of the knee joint, and the surgery takes about 1 to 2 hours. The material used to reconstruct the posterior cruciate ligament can be autologous semitendinosus, semimembranosus, or homologous tendon, and through a minimally invasive channel, one side of the reconstructed material is fixed to the tibia and the other side is fixed to the femur. Patients are advised to keep the wound dry after the surgery, avoid strenuous exercise (e.g., fast running), long-distance walking, and excessive bending of the knee to avoid affecting the recovery of the wound, and go to the hospital to have the stitches removed two weeks after the surgery.