I am suffering from posterior disc herniation for more than four years. Operation has been done before four years but not successful.

hi. Firstly, please mention your age and gender. Foot drop is most common in cases of L5/S1 nerve damage/pinching/herniation because of the following: Muscle damage Skeletal abnormalities Nerve damage Specific conditions and diseases that lead to foot drop are:....

Please get a revised MRI done and visit an orthopedician at the earliest.

what kind of pain is it? any specific area of the spine that hurts? any other medical condition that she has..?