{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T05:08:57Z","timestamp":1789880937775,"version":"4.0.1"},"reference-count":17,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1982,7]]},"abstract":"<jats:p content-type=\"fine-print\">\u2713 To define the site, degree, and dynamics of mechanical compression of the spinal nerve roots, pressure was measured in 42 patients with clinical symptoms and myelographic findings indicating central lumbar spinal stenosis. Pathological pressure on the cauda equina was found in 67% of the patients. The pressure in the region of the spinal block was high during standing and walking, and in several patients exceeded mean arterial blood pressure. The block pressure was the main mechanical factor in the central part of the spinal canal causing pain and paresis. Elevated fluid pressure caudal to the block was an additional but usually subordinate factor. In 33% of the patients, normal pressure on the cauda equina was found, and lateral compression of multiple nerve roots seemed to be the only mechanical symptom-causing factor. Clinically, these patients could not be distinguished from patients with central compression. After laminectomy with decompression of the cauda equina, the field should be inspected for lateral narrowing which, if present, should be treated.<\/jats:p>","DOI":"10.3171\/jns.1982.57.1.0057","type":"journal-article","created":{"date-parts":[[2009,5,8]],"date-time":"2009-05-08T13:57:50Z","timestamp":1241791070000},"page":"57-63","source":"Crossref","is-referenced-by-count":22,"title":["Clinical recording of pressure on the spinal cord and cauda equina"],"prefix":"10.3171","volume":"57","author":[{"given":"Bj\u00f8rn","family":"Magnaes","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"key":"b1","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"513","DOI":"10.3171\/jns.1969.31.5.0513","article-title":"Significance of the small lumbar spinal canal: cauda equina compression syndromes due to spondylosis. 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Part 2: Clinical studies on orthostatic pressure and the hydrostatic indifferent point.","volume":"44","author":"Magnaes","year":"1976"},{"key":"b9","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"48","DOI":"10.3171\/jns.1982.57.1.0048","article-title":"Clinical recording of pressure on the spinal cord and cauda equina. Part 1: The spinal block infusion test: method and clinical studies.","volume":"57","author":"Magnaes","year":"1982"},{"key":"b10","series-title":"Clin Orthop","first-page":"107","article-title":"The load on lumbar disks in different positions of the body.","volume":"45","author":"Nachemson","year":"1966"},{"key":"b11","series-title":"Dtsch Z Nervenheilk","doi-asserted-by":"publisher","first-page":"325","DOI":"10.1007\/BF01733057","article-title":"Zur Diagnose der R\u00fcckenmarkskompression.","volume":"55","author":"Queckenstedt","year":"1916"},{"key":"b12","series-title":"The Human Lumbo-Sacral Vertebral Column. An Osteometric Study.","author":"Sand","year":"1970"},{"key":"b13","series-title":"Acta Radiol Suppl","first-page":"42","article-title":"Functional myelography with metrizamide in the diagnosis of lumbar spinal stenosis.","volume":"355","author":"Sortland","year":"1977"},{"key":"b14","series-title":"Arch Neurol","doi-asserted-by":"publisher","first-page":"221","DOI":"10.1001\/archneur.1963.00460020121011","article-title":"Lumbar spondylosis with compression of cauda equina.","volume":"8","author":"Teng","year":"1963"},{"key":"b15","series-title":"Acta Psychiatr Neurol Scand","doi-asserted-by":"publisher","first-page":"57","DOI":"10.1111\/j.1600-0447.1948.tb09355.x","article-title":"Ein orthotisches (lordotisches) Kaudasyndrom.","volume":"23","author":"Van Gelderen","year":"1948"},{"key":"b16","series-title":"J Bone Joint Surg (Br)","first-page":"230","article-title":"A radicular syndrome from developmental narrowing of the lumbar vertebral canal.","volume":"36","author":"Verbiest","year":"1954"},{"key":"b17","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"499","DOI":"10.3171\/jns.1969.31.5.0499","article-title":"Significance of the small lumbar spinal canal: cauda equina compression syndromes due to spondylosis. 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