After comminuted patella fracture, sequelae such as osteophytes and osteoarthritis usually occur. After the healing of comminuted patella fracture, the joint surface of patella is not smooth, the bone is abnormally proliferated, easy to form bone spurs, when the joint activity, there will be obvious pain, knee joint activity is limited, especially in the patient squatting and going up and down the stairs, and the pain is more obvious in the cold and wind. The destruction of the patellar joint surface easily leads to cartilage damage, easily causing patellofemoral arthritis, pain symptoms, long-term pain may even lead to thigh muscle atrophy or lower limb weakness and other symptoms. The emergence of comminuted patella fracture, need to actively carry out surgical treatment, do not be too tired after surgery, pay attention to rest, under the guidance of the doctor for rehabilitation training, the probability of sequelae will be reduced.