Suggest Treatment For Spinal Disc Herniation
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Detailed Answer:
I read your question carefully and I understand your concern.
Looking at those images that you have provided I do not think there is any marked spondylolisthesis, it s a very mild one at L5-S1 but very mild, I do not think it plays much of a role and doesn’t influence any management decision.
I do not see any tumor, of course a complete exam contains more tests than you provide, but I think you can feel pretty reassured, a tumor would be visible on MRI, especially one large enough to compress nerve roots.
In terms of treatment, regarding medications you can tried medication used for chronic and neuropathic pain. There are two main groups either anticonvulsants such as gabapentin, pregabalin or antidepressants such as duloxetin, amitriptylin.
If the addition of those drugs does not work, before considering surgery local injections with corticoids and anesthetics are usually tried to provide some relief while continung physical therapy.
As for additional tests, if the MRI belongs to 10 months ago it may be repeated since you say to be getting worse, otherwise if it is recent is not necessary. If the doctors have any diagnostic doubts about the bulge causing the symptoms then nerve conduction studies can also be done.
I remain at your disposal for other questions.