S/p fusion. Posterior stabilization rods are present with screws entering the L4 and S1 vertebral bodies. We see no hardware complications. Gas within the posterior soft tissues presumably reflects recent surgery. There is diffuse sclerosis and loss of height of L5, compatible with patient's known metastatic prostate cancer with pathologic fracture as seen on recent CT and MRI. Mild degenerative changes affect the lumbar spine.
Postoperative changes of lumbosacral fusion and pathologic compression deformity of L5, as described above.