Hi, hoping someone here can give me some clarification - endless googling hasn't helped me much. I had colorectal cancer last year with chemo/radiation/surgeries. Two months after the major surgery I experienced neuropathy in right calf and foot & foot drop (other than occasional intense right leg cramping I have no pain, in back or leg/foot). Ortho spine doc ordered MRI which showed herniated disks, stenosis, etc. (I have a history of sciatica). He wanted to do "decompression" surgery but me being on chemo and having an ileostomy scared him. Dumped him, now seeing a neurosurgeon who ordered an EMG. He didn't go in depth with results, wants to consult with colleagues but he thinks I have radiation induced nerve damage and says surgery won't help. Anyway, here are the results:

The H-reflexes are are unobtainable bilaterally. This could reflect bilataeral S1 nerve root dysfunction. Occasionally this is technical in origin.
Otherwise, this is a normal nerve conduction study of both lower extremities. There is no entrapment or peripheral polyneuropathy.
This is an abnormal needle EMG.
Increased insertional and spontaneous activity is seen in right lower lumbosacral paraspinal muscles, at the L5-S1 level, consistent with an active radiculopathy.
There is no evidence for myopathy.

Now he wants me to do two nerve blocks - which has me confused because I'm not in pain. I get the leg cramps, but not daily - diagnostically, what could the injections show? My surgeon says no to the blocks and wants to refer me to PT. I'm now using a cane to get around since my leg goes out without warning. Anyone have advice/suggestions/help?

Thanks in advance.