<qa>  What is the type A1 and A3.1 of traumatic vertebral fracture?3. One to two painful traumatic fractures, non-pathological, traumatic vertebral fracture is less than 10 days, between T11 and L5, type A1 and A3.1 according to Magerl classification. All the fractures should meet the inclusion criteria deformity, etiology, technical possibility of performing the procedure. 