Hello. My 20 year old nephew was in a motorcycle accident in August in which he suffered the loss of use in his right arm.. He is getting tests done to see if there is any nerve endings left in his spine. I read an article about the ability of sialidase to improve spinal nerve regeneration into transplanted peripheral nerves, Is there anything my sister should ask the physician about when she goes in for the prognosis? Wondering if there has been any advancements which may not be well known yet which will help nerve regeneration in his spine.