Fig. 1

Case 1 (a, b, c, d) was an 88-year-old male patient. A moderate and biconcave type fracture in T12 was shown on lateral radiograph (a). An IVC in T12 was confirmed on sagittal CT reconstruction (b) and MRI (c). An area similar to fluid in this IVC was demonstrated on sagittal MRI (c). Leakage was detected through the upper endplate of T12 vertebra on postoperative CT (d). Case 2 (e, f, g, h) was a 71-year-old female patient. There was evidence of a mild and wedge type fracture in L4 on lateral radiograph (e). A L4 fracture with absence of the IVC was confirmed on sagittal CT reconstruction (f) and MRI (g). Leakage was detected into spinal canal and segmental vein on postoperative CT (h)