Where do you turn when a neurologist, a neurosurgeon, pain mngmt Dr & Rehab Spec dont know why leg numbness?

My husband had a cervical & lumbar spine mri in 8/08, he had cervical spinal surgery in 11/08 to shave bone spur, reconstruct 2 disc & have titanium plate & screws put in. Dr referred him to pain mngmt for lumbar pain, bulging disc, annular tear. Went to pain mngmt got one shot, no relief, got 2nd injection, dr gave injection slightly to the left to hopefully give more relief, told my husband his leg may hurt or be numb for 2 or 3 days but then it should feel better, that started the process of the entire leg being numb and pain shooting down his leg from his lumbar spine all the way to his foot, saw the same doctor 2 wks later, the dr said, he didnt believe injections would help, refered him back to a neurosurgeon, and told us he was leaving the practice. Our insurance changed so we had to see a different neurosurgeon, he did a cervical spine mri, thorasic spine mri, w/wo contrast, we also have an emg from a neurologist. The thoracic spine mri shows some degenerative changes of the lower thoracic spine but otherwise normal.The cervical spine sows the surgery and also evidence of facet arthrosis and uncovertebral joint spurring at multiple levels minimal broad based disc osteophyte comlex at c6-c7. resulting in mild neural foraminal narrowing at c3-c4 and c4-c5. Lumber spine shows L4-L5 diffuse annular bulge. small annular tear. also a second lumbar mri shows left posterolateral focal disc protrusion at the l5-s1 level extending into the left neural foramen. The emg shows Cervical radiculopathy c5-6 on the right with acute changes and lumbar radiculopathy L5-S1 on teh left with acute changes. So my question, sorry to be so long is: why is my husband left with nobody having an answer as to how and why his left leg is totally numb and when it is moved and manipulated by any of these doctors he has extreme pain in the leg, hip and back. The rehab specialist wont even touch him to try rehab. Social Security says "he cant lift heavy things but with a little on the job training he can learn another profession" he's a truck driver, painter, roofer???". Also he has psychological problems, won't even go into that. Anybody, please, where do I go next?????