Fig. 2

MRI of L2 compression fracture with posterior vertebral cortex disruption before PKP (red arrow) (a). We performed L2 PKP with 4.0 c.c. bone cement (b). MRI showing spinal canal compromised by a retropulsed bone fragment after balloon kyphoplasty (c). L2 level posterior decompression (PD) and T12-L4 instrumentation (PI) with pedicle screws (d)