Patients with patellar fractures without significant displacement can be treated conservatively. Usually, conservative treatment requires 6-8 weeks of cast immobilization in an extension position, and after removal of the cast, the patient can gradually move to the ground with the help of crutches. For patellar fracture, conservative treatment requires 6-8 weeks of cast fixation and should be reviewed regularly to observe the tightness of the cast, which should be adjusted promptly if it is too loose or too tight. During the period of cast fixation, the patient can use drugs to activate blood circulation and remove blood stasis, such as Bone Health Capsules, to facilitate fracture healing. During the period of fracture fixation, X-ray should be reviewed regularly to observe whether the fracture is displaced or healed. If the fracture heals well, the cast should be removed and the patient should gradually get out of bed and walk, but gradually and avoid violence. If the fracture has healed initially, functional knee flexion and extension exercises and quadriceps contraction exercises can be performed; at 6-8 weeks, the range of knee flexion and extension exercises should be increased until full functional recovery.