First of all I would like to thank the creators of this wonderful website...I am a regular visitor and have been reading information for a couple of years now and I reccommend it to anyone needing good information.
However, I am now after information that I can't seem to find online. I'm wondering if anyone has ever had a Nerve Root Block injection and thought that the wrong nerve has been chosen?
I have a history of facet joint injections, discogram, and anterior discectomy (ALIF) at L4/L5 and L5/S1 with metal cages, artificial bone, plate and screws. I had an S1 nerve root block injection done 1 week ago to try and ease my sciatica symptoms and to help my Neurosugeon diagnose whether one of the anterior screws is irritating the S1 nerve. The idea was that if the nerve root injection was successful, it would give me some relief and confirm if the S1 nerve is the cause, then a CT Scan can be done to investigate further. Unforunately, I have had increased leg/foot numbness/weakness since a couple of days after the injection.
Prior to the injection, my symptoms were on the top of my foot, outer ankle area, outer side of calf and outer side of thigh. Looking at lumbar nerve innovation dermatome diagrams, this is due to the L5 nerve root.
After my S1 injection I now have numbness inmy 3 littlest toes and down the back of my thigh in the hamstring area, as well as the original areas that were already affected.
Even though I clearly described my original leg/foot symptoms to the Spinal Physiotherapist and Neurosurgeon, they suggested blocking the S1 level.
Can anyone give advice or reassurance please? I am worried that the S1 nerve root block injection has numbed my leg in new places and that I will have to wait for this to die down over a long period of time.
I have been checked today by a Doctor in Neurosurery and have to go for an MRI scan in the next week. It did not occur to me until this evening that maybe it is because the wrong nerve was selected in the first place!
Any advice would be greatly apprecited...thank you for your interest.