I am sorry to hear about this. I am going through the exact same thing and I have no idea if the nerve will heal. Has it gotten better? I am curious - if the nerve is damaged will it recover. Mine is a screw in the Thecal Sac after the L4L5 fusion and same effect - Muscle Weakness and numbness in right leg down to my 3rd and 4th toe making it difficult to walk more than 2-300 steps without a cane to pull me forward.