They didn't even TOUCH you below the waist, did they? They had the MRI for the lumbar, right? Or at least the report? Did they poke needles in your legs? Did they do ANYTHING below the waist?
I would think that they'd test the femoral. That only makes sense!! How long did this guy spend with you -- 2-4 minutes? It sounds like you didn't get enough time spent with you to even ask questions! These so-called "specialists" are a pain in the wazoo, and give me a headache. They're in and out in the flash, and you're left there more confused than you were when you walked in!
I wish I knew what to tell you, but I've been in your shoes more than once with these jerks. I just wish they were the patient sometime and got treated the same as we're treated. Might humble them a bit. God bless & take care my friend. Hugs, Lee