About six months ago I began to feel pain behind my legs after sitting for long periods of time in my car or office. My relatively new (1 1/2 yrs.) requires far more driving and computer time than previous positions. It has progressed to continuous bilateral (slightly more in the right leg) pain in my buttocks, behind my thighs, all around my knees, and down the sides of my calves. Since I have had continuing low back (lumbar) pain due to two high speed introductions to the ground resulting in a burst fracture of my L1 vertebra, my othopedic doctor asumed it would be due to a disc infringement or stenosis in the lumbar spine. Two MRI scans indicated no involvement at all. I was then referred to a neurologist who conducted two EMG tests (needlesfrom L4 to my feet on both sides) and a blood test. I really had to talk myself into the second one; this friggin test bites it. The neurologist (who also conducted the tests) explained the results which were that my nerves are irritated and that my serum aldolase was 9.3. (unremarkable in and of itself). I knew that six months ago! He didn't know why, but offered to arrange a spinal tap as the next test. He wasn't offering it in a way that indicated any confidence in it diagnosing the cause of my sciatic pain, but rather in a way that said (well if you want to try something else we can check your spinal fluid). He admitted that he was somewhat at a loss as to what was causing the pain. I'm hesitant to have a needle stuck into my spinal canal if it doesn't have much chance to diagnose my pain. I've also googled sciatica extensively and found no cases of conducting a spinal tap to diagnose it. So, I'm at a loss as to how to proceed. I know that the EMG test indicated irritated nerves from my lubar roots to my knees, and that I have something called elevated aldolase, but this doesn't give my MD's enough to offer a reasonable diagnosis. They just throw out suggestions that perhaps a cortisone injection or a tap in my spinal cord will get some results. I'm not big on shotgunning a therapy without knowing the root cause nor do I want to blindly submit myself to painful, intrusive tests without a good reason to conduct them.
I have a least as much faith in some muscle and connective tissue syndromes as the symptoms descibed matched mine more closely than disc related sciatica. I'm beginning to think that I spend far too much time on my kiester and it's causing this nerve irritation.
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