L1 metastasis status post radiation therapy. Increased lower back pain. History of polymyalgia rheumatica and degenerative joint disease. Evaluate for compression fracture. Status post bilateral total hip arthroplasty. Normal lumbar alignment is preserved. Vertebral body height is maintained, with no compression fracture identified. Multilevel disc narrowing is most severe at L1-L2. There is vacuum disc phenomenon at L3-4. The known left L1 pedicle metastasis is not identified on radiographic imaging, please see MRI 9/30/2015.
No evidence of acute fracture or malalignment. Moderate degenerative disc disease, most severe at L1-2.