{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T18:46:35Z","timestamp":1789757195085,"version":"4.0.1"},"reference-count":31,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2021,3,3]],"date-time":"2021-03-03T00:00:00Z","timestamp":1614729600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Global Spine Journal"],"published-print":{"date-parts":[[2023,3]]},"abstract":"<jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Retrospective observational study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective:<\/jats:title>\n                    <jats:p>To investigate the relationship between the extent of ligament ossification and the range of motion (ROM) of the lumbar spine and develop a new scoring system.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Forty-three patients (30 men and 13 women) with lumbar spinal canal stenosis who underwent decompression from January to December 2018. Ligament ossification at L1\/2 to L5\/S was assessed on plain X-ray (Xp) and computed tomography (CT) using a modified Mata scoring system (0 point: no ossification, 1 point: ossification of less than half of the intervertebral disc height, 2 points: ossification of half or more of the intervertebral disc height, 3 points: complete bridging), and the intra-rater and inter-rater reliability of the scoring was assessed. The relationship of the scores with postoperative lumbar ROM was investigated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Result:<\/jats:title>\n                    <jats:p>Intra-rater reliability was high (Cronbach\u2019s \u03b1 was 0.74 for L5\/S on Xp but 0.8 or above for other sections), as was inter-rater reliability (Cronbach\u2019s \u03b1 was 0.8 or above for all the segments). ROM significantly decreased as the score increased (scores 1 to 2, and 2 to 3). A significant moderate negative correlation was found between the sum of the scores at L1\/2-L5\/S and the ROM at L1-S (\u03c1 = \u2212 0.4493, P = 0.025).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Our scoring system reflects lumbar mobility and is reproducible. It is effective for assessing DISH in fractures and spinal conditions, and monitoring effects on treatment outcomes and changes over time.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/2192568221996681","type":"journal-article","created":{"date-parts":[[2021,3,3]],"date-time":"2021-03-03T05:07:37Z","timestamp":1614748057000},"page":"378-383","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["A Scoring System for Anterior Longitudinal Ligament Ossification of the Lumbar Spine in Diffuse Idiopathic Skeletal Hyperostosis: Relationship Between the Extent of Ligament Ossification and the Range of Motion"],"prefix":"10.1177","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3333-2349","authenticated-orcid":false,"given":"Yusuke","family":"Murakami","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery, Ehime University School of Medicine, Shitsukawa, Tohon City, Ehime, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8449-2505","authenticated-orcid":false,"given":"Tadao","family":"Morino","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Ehime University School of Medicine, Shitsukawa, Tohon City, Ehime, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masayuki","family":"Hino","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Ehime University School of Medicine, Shitsukawa, Tohon City, Ehime, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroshi","family":"Misaki","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Ehime University School of Medicine, Shitsukawa, Tohon City, Ehime, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroshi","family":"Imai","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Ehime University School of Medicine, Shitsukawa, Tohon City, Ehime, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiromasa","family":"Miura","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Ehime University School of Medicine, Shitsukawa, Tohon City, Ehime, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,3,3]]},"reference":[{"key":"bibr1-2192568221996681","doi-asserted-by":"publisher","DOI":"10.1136\/ard.9.4.321"},{"key":"bibr2-2192568221996681","doi-asserted-by":"publisher","DOI":"10.1148\/119.3.559"},{"key":"bibr3-2192568221996681","doi-asserted-by":"publisher","DOI":"10.1148\/15.3.513"},{"key":"bibr4-2192568221996681","doi-asserted-by":"publisher","DOI":"10.1016\/j.jos.2016.09.003"},{"key":"bibr5-2192568221996681","doi-asserted-by":"publisher","DOI":"10.1007\/s002560050225"},{"key":"bibr6-2192568221996681","doi-asserted-by":"publisher","DOI":"10.1007\/s00774-014-0583-9"},{"issue":"10","key":"bibr7-2192568221996681","first-page":"2032","volume":"31","author":"Kim SK","year":"2004","journal-title":"J 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