What is the specific treatment for compressive spine fracture?

Hello doctor,

I have a case of a 47 year old man, who went through a car accident. The scan showed a compressive fracture of T12 wth predominance into the canal 7 mm. The patient was told to stay in bed with a plastic corsage around his waist to prevent sudden movements. Around two to three months later the patient was able to sit and stand, but he did not remove the plastic corsage. Then five months later, which is two weeks ago, the patient could not move his right leg and he could barely feel his right arm. He did a scan and the result as follows. Multiple subcortical and periventricular hypo dense lesions on both hemispheres. Calcified arteriosclerotic plates on arteria vertebralis dexter. No distinguishable lesions on posterior cranial fossa. Free basal cisterns. Free paranasal sinuses. Overall, it says that the multiple ischemic lesions lead towards vasculitis. I must include that the patient suffers from heart pressure and diabetes. Can you lead me to a specific path of treatment? How dangerous is this diagnosis?