In general, two months after patella surgery, the steel nail is loose, if the fracture has completely healed, you can go to the hospital to remove the steel nail; if the fracture is not completely healed, it is recommended to further observation, if necessary, a second operation can be carried out. 1. Fracture has been completely healed: X-ray film shows the formation of bone scab, the fracture line has disappeared, suggesting that the fracture has been completely healed, at this time under the guidance of the doctor, you can remove the loose steel nail through surgery. Keep the wound clean and dry after surgery. 2. Fracture is not completely healed: X-ray shows that the fracture line is still clear or fuzzy, the bone scab is not completely formed, suggesting that the fracture is not completely healed, at this time you should observe whether there is redness, swelling, pain, local stiffness and activity limitation around the patella, if there is no the above situation, it is recommended to continue to observe and reduce the affected limb patella’s weight-bearing and strenuous activities; if the above situation, it is recommended to carry out the second operation in a timely manner. Two months after the patella surgery, the steel nail loosening, it is recommended to consult a doctor in time to clarify the diagnosis, according to the injury targeted treatment.