Left tibiofibular upper comminuted fracture surgery after 3 and a half months has not been long may be related to poor blood supply, serious injury, poor fixation and so on. 1. Poor blood supply: the blood supply of the tibiofibular area is relatively small compared to other parts of the body, after the comminuted fracture, due to trauma and other stimuli may further reduce the blood vessels, you can massage, infrared light irradiation, etc. to promote blood circulation. 2. Severe injury: when the degree of comminuted fracture of upper left tibiofibula is severe, due to excessive bone destruction, the crushed bone can not be connected, you can give calcium carbonate, osteoconjugate diol capsules and other medications. 3. Inadequate fixation: Inadequate fixation after surgery for comminuted fracture of the upper left tibia and fibula can affect the prognosis of the bone, so you can go to the hospital for follow-up and adjust the fixation status in time. Left tibial fibula upper comminuted fracture surgery after 3.5 months has not been long recommended to go to the hospital in time to improve the auxiliary examination, to clarify the cause of the disease for targeted treatment.