at l1/2,the dorsal disc margin is intact, and the canal and neutral foramina bilaterally are patent. At T 12\L1 their small focal posterior central to right paracentral disc herniation resulting in mild ventral thecal sac compressions. however, there is no canal stenosis, foraminal narrowing or nerve root compression.
2) unremarkable postop changes from prior L3 - L5 dorsal decompression and hardware fusion. There is malalignment or canal stenosis at these postop levels.
3) mild degenerative canal stenosis at L2/3.
4) small focal posterior central to right paracentral disc herniation at T 12/L1, but without associated canal stenosis or nerve root compromise