Spine
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A prospective cohort study with computed tomographic-myelographic and clinical base registrations and follow-up by questionnaire 14 months after the onset of leg pain. ⋯ Area measurements on computed tomography-myelography could not predict outcome in patients with lumbar disc herniation who were not operated on. There was an association between pain and a wide dural sac, which might underscore the sensory role of dura in protracted cases of sciatica.