Spinal Fluid Leak

I am a 62 yr old white male with a spinal fluid leak in the right L3 region (underneath on the ventral surface of the dura and underneath the nerve root). This CSF leak resulted during spinal surgery 10-09-06 conducted in Amarillo, TX. There have been three unsuccessful attempts to repair the leak.  I have typical CSF leak symptoms, headaches, exaggerated hearing, nausea, loss of energy and weight loss (normally 150, now about 135). I have undergone 60 hyperbaric treatments at Duke Medical Center (negative results for healing the tear). I am stable but would very much appreciate any help getting this repaired soon. Medical history (highlights) includes, substantial thorax radiation (13,000 rads over 8 weeks in 1972) for treatment for testicular cancer (teritoma carcinoma rt testicle, removed), radical lymph node dissection (1972), gastric bypass (1974), 7 previous surgeries for flatback syndrome, spine implants, implant failures, lumbar spinal stenosis with radiculopathy. Bottom line is that I am searching for a clinic/hospital/surgeon that has lots of experience with CSF leaks. Any help is appreciated. I can be reached at ***@****