Multilevel degenerative changes are detailed above. There is advanced facet arthropathy at L4-5, which along with shallow disc bulging, results in mild bilateral foraminal narrowing. A facet cyst on the left at this level narrows the lateral recess, displacing the descending L5 and S1 nerve roots. Help me understand my options please. I have exhausted injections. Will a nerve ablation solve this problem or just postpone the need for a more invasive option.