Neuropathy of the lower extremities is more often a result of some compromise of the large
nerve in the lumbar spine (sciatic
nerve). The fact that you had complete loss of feeling right after your accident could be related to the traumatic impact and some contusion or bruising of the area, Considering that the numbness has continued for such a long time, it may be appropriate to obtain a neurological consult to determine if any compromise of the nerves exists.