{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T14:04:18Z","timestamp":1753884258160,"version":"3.41.2"},"reference-count":12,"publisher":"Oxford University Press (OUP)","issue":"1096","license":[{"start":{"date-parts":[[2019,1,17]],"date-time":"2019-01-17T00:00:00Z","timestamp":1547683200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,4,1]]},"abstract":"<jats:sec>\n                  <jats:title>Objective:<\/jats:title>\n                  <jats:p>To compare disc and nerve root findings, image quality, and pain between supine lumbar MRI positions with straightened v \u00a0s flexed hips and knees.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods:<\/jats:title>\n                  <jats:p>In this prospective pilot study, 14 adults with sciatica or suspected lumbar radiculopathy underwent MRI supine with their hips and knees flexed and then straightened. For each position, two experienced radiologists assessed disc contour, location\/size of disc herniation, nerve root affection, image quality, image evaluation difficulty, and sagittal angles between the vertebral bodies at each disc level L3-S1. Patients scored pain (0\u201310) after MRI in each position. We compared MRI assessments and mean pain scores (t-test, log-transformation) between the two positions.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results:<\/jats:title>\n                  <jats:p>We found no clear difference in disc bulges, disc herniation, nerve root affection, image quality, or image evaluation difficulty between MRI with straightened v \u00a0s flexed knees\/hips. Herniation size differed \u2264 0.6 mm between the two positions. Sagittal angles between neighboring vertebral bodies differed \u22643.8\u00b0. Mean pain score after MRI with straightened v \u00a0s flexed knees\/hips was 4.64 v \u00a0s 3.29 (p = 0.005).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion:<\/jats:title>\n                  <jats:p>In this pilot study, supine lumbar MRI with straightened vs flexed hips\/knees showed similar disc and nerve root findings. The straightened position appeared more painful.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Advances in knowledge:<\/jats:title>\n                  <jats:p>In previous studies, spondylolisthesis increased on supine MRI with straightened v \u00a0s flexed lower limbs, but corresponding data on disc findings were lacking. In this pilot study, supine lumbar MRI with straightened rather than flexed hips and knees was more painful and did not improve the diagnosis of disc or nerve root findings.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1259\/bjr.20180851","type":"journal-article","created":{"date-parts":[[2019,1,17]],"date-time":"2019-01-17T17:06:04Z","timestamp":1547744764000},"source":"Crossref","is-referenced-by-count":2,"title":["Disc and nerve root findings on lumbar MRI with straightened <i>v<\/i>\n\u00a0<i>s<\/i> flexed hips and knees\u2014pilot study"],"prefix":"10.1093","volume":"92","author":[{"given":"Ansgar","family":"Espeland","sequence":"first","affiliation":[{"name":"Department of Radiology, Haukeland University Hospital , Bergen , Norway"},{"name":"Department of Clinical Medicine, University of Bergen , Bergen , Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nina","family":"Dalen","sequence":"additional","affiliation":[{"name":"Western Norway University of Applied Sciences , Bergen , Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2019,1,17]]},"reference":[{"key":"2024050214503448200_b1","doi-asserted-by":"crossref","first-page":"294","DOI":"10.1111\/os.12137","article-title":"Kinetic magnetic resonance imaging analysis of spinal degeneration: a systematic review","volume":"6","author":"Lao","year":"2014","journal-title":"Orthop Surg"},{"key":"2024050214503448200_b2","doi-asserted-by":"crossref","first-page":"1329","DOI":"10.1002\/jmri.1880080622","article-title":"Functional MRI of the lumbar spine in erect position in a superconducting open-configuration Mr system: preliminary results","volume":"8","author":"Zamani","year":"1998","journal-title":"J Magn Reson Imaging"},{"key":"2024050214503448200_b3","doi-asserted-by":"crossref","first-page":"15","DOI":"10.1007\/s10195-012-0213-z","article-title":"Lumbar spine MRI in upright position for diagnosing acute and chronic low 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central spinal stenosis","volume":"33","author":"Madsen","year":"2008","journal-title":"Spine"},{"key":"2024050214503448200_b7","doi-asserted-by":"crossref","first-page":"313","DOI":"10.1007\/s00256-011-1186-3","article-title":"Juxtafacet cysts of the lumbar spine: a positional MRI study","volume":"41","author":"Niggemann","year":"2012","journal-title":"Skeletal Radiol"},{"key":"2024050214503448200_b8","doi-asserted-by":"crossref","first-page":"921","DOI":"10.1016\/j.ejrad.2015.01.023","article-title":"Supine spinal magnetic resonance imaging with straightened lower extremities in spondylolisthesis: a comparison with the conventional technique","volume":"84","author":"Daghighi","year":"2015","journal-title":"Eur J Radiol"},{"key":"2024050214503448200_b9","doi-asserted-by":"crossref","first-page":"2836","DOI":"10.1097\/01.brs.0000245834.30646.aa","article-title":"The effect of lumbar flexion and extension on disc contour abnormality measured quantitatively on magnetic resonance imaging","volume":"31","author":"Parent","year":"2006","journal-title":"Spine"},{"key":"2024050214503448200_b10","doi-asserted-by":"crossref","first-page":"662","DOI":"10.1097\/BRS.0000000000001889","article-title":"Conventional supine MRI with a lumbar Pillow-An alternative to weight-bearing MRI for diagnosing spinal stenosis?: a cross-sectional study","volume":"42","author":"Hansen","year":"2017","journal-title":"Spine"},{"key":"2024050214503448200_b11","doi-asserted-by":"crossref","first-page":"E1448","DOI":"10.1097\/BRS.0b013e3182a8866d","article-title":"Lumbar disc nomenclature: version 2.0: recommendations of the combined task forces of the North American spine Society, the American Society of spine radiology, and the American Society of Neuroradiology","volume":"39","author":"Fardon","year":"2014","journal-title":"Spine"},{"key":"2024050214503448200_b12","doi-asserted-by":"crossref","first-page":"1547","DOI":"10.1007\/s00256-012-1394-5","article-title":"Reliability of change in lumbar MRI findings over time in patients with and without disc prosthesis--comparing two different image evaluation methods","volume":"41","author":"Berg","year":"2012","journal-title":"Skeletal Radiol"}],"container-title":["The British Journal of 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