After removing bone spur and subsequent fusion of Par Defect, I ended up with “neuropathy” and over the years have been treated for chronic but sever LLQ, back, leg and foot pain. Recently found out and am awaiting determination of dx of Hirschsprung’s Disease, but it all makes sense! I remember clearly the day I went back to you and you had taken the hardware out and you are the only one who believed me. You exclaimed – in almost a surprised voice, that I had neuropathy because I was continuing to have lots pain. I have had kidney removed as well, without relief. The chronic constipation, malabsorption, weight loss and inability to thrive is making sense. I believe that this accounts for the severe ongoing pain. Have you ever encountered this condition? How much validity could there be in realizing the constipation is causing pressure on areas in LLQ/back. Thanks!