{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T14:43:55Z","timestamp":1787755435708,"version":"build-2784847793"},"reference-count":17,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec>\n                    <jats:title>Case:<\/jats:title>\n                    <jats:p>We report 3 cases of thoracic myelopathy caused by vertebral osteophytes and coexisting intradural spinal arachnoid cyst (SAC), which was difficult to diagnose on preoperative magnetic resonance imaging. Intraoperative ultrasound sonography revealed spinal cord impingement because of osteophytes and a pulsating intradural SAC. Repeated pincer compression on the spinal cord seemed to be associated with their paraparetic symptoms.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>In treating patients presenting with unexplained progressive myelopathy with small ossified lesion in the thoracic spine, close attention should be paid to a coexisting SAC as a hidden aggravating factor for thoracic myelopathy.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.2106\/jbjs.cc.22.00027","type":"journal-article","created":{"date-parts":[[2022,5,20]],"date-time":"2022-05-20T18:03:33Z","timestamp":1653069813000},"update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":1,"title":["Pulsating Spinal Arachnoid Cyst as a Hidden Aggravating Factor for Thoracic Spondylotic Myelopathy"],"prefix":"10.2106","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2436-2175","authenticated-orcid":false,"given":"Masahiko","family":"Takahata","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takamasa","family":"Watanabe","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2998-2242","authenticated-orcid":false,"given":"Tsutomu","family":"Endo","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6126-7153","authenticated-orcid":false,"given":"Yuki","family":"Ogawa","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Souya","family":"Miura","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5496-4046","authenticated-orcid":false,"given":"Norimasa","family":"Iwasaki","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2022,4]]},"reference":[{"key":"bib1-20240805","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1016\/j.jocn.2017.02.051","article-title":"Idiopathic intradural dorsal thoracic arachnoid cysts: a case series and review of the literature","volume":"40","author":"French","year":"2017","journal-title":"J Clin Neurosci."},{"issue":"2","key":"bib2-20240805","doi-asserted-by":"crossref","first-page":"E25","DOI":"10.1097\/00007632-200301150-00019","article-title":"Symptomatic spinal arachnoid cysts: report of two cases with review of the literature","volume":"28","author":"Kumar","year":"2003","journal-title":"Spine (Phila Pa 1976)."},{"issue":"2","key":"bib3-20240805","doi-asserted-by":"crossref","first-page":"175","DOI":"10.3171\/2019.1.SPINE181371","article-title":"Arachnoid web of the spine: a systematic literature review","volume":"31","author":"Nisson","year":"2019","journal-title":"J Neurosurg Spine."},{"issue":"suppl 2","key":"bib4-20240805","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1007\/s00586-009-1156-9","article-title":"Spinal cord compression caused by idiopathic intradural arachnoid cysts of the spine: review of the literature and illustrated case","volume":"19","author":"Petridis","year":"2010","journal-title":"Eur Spine J."},{"issue":"1","key":"bib5-20240805","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1016\/S0090-3019(03)00149-6","article-title":"Intradural spinal arachnoid cysts in adults","volume":"60","author":"Wang","year":"2003","journal-title":"Surg Neurol."},{"issue":"6","key":"bib6-20240805","doi-asserted-by":"crossref","first-page":"711","DOI":"10.3171\/2018.5.SPINE1820","article-title":"Spinal arachnoid cysts in adults: diagnosis and management. A single-center experience","volume":"29","author":"Fam","year":"2018","journal-title":"J Neurosurg Spine."},{"issue":"suppl 5","key":"bib7-20240805","doi-asserted-by":"crossref","first-page":"661","DOI":"10.1007\/s00586-006-0204-y","article-title":"Thoracic arachnoiditis, arachnoid cyst and syrinx formation secondary to myelography with Myodil, 30 years previously","volume":"15","author":"Gnanalingham","year":"2006","journal-title":"Eur Spine J."},{"issue":"6","key":"bib8-20240805","doi-asserted-by":"crossref","first-page":"638","DOI":"10.3171\/2017.5.SPINE161243","article-title":"Thoracic spinal cord impingement by an arachnoid web at the level of a hemivertebra: case report","volume":"27","author":"Hubbard","year":"2017","journal-title":"J Neurosurg Spine."},{"issue":"5","key":"bib9-20240805","doi-asserted-by":"crossref","first-page":"1057","DOI":"10.2214\/ajr.153.5.1057","article-title":"Acquired spinal subarachnoid cysts: evaluation with MR, CT myelography, and intraoperative sonography","volume":"153","author":"Sklar","year":"1989","journal-title":"AJR Am J Roentgenol."},{"issue":"3","key":"bib10-20240805","doi-asserted-by":"crossref","first-page":"532","DOI":"10.5035\/nishiseisai.63.532","article-title":"Intradural arachnoid cyst co-existing with posterior ossification of longitudinal ligament in thoracic spine: a case report","volume":"63","author":"Kiyota","year":"2014","journal-title":"Orthopedics Traumatol."},{"issue":"2","key":"bib11-20240805","first-page":"177","article-title":"Thoracic spinal arachnoid cyst with ossification of posterior longitudinal ligament: a case report","volume":"45","author":"Yamada","year":"2001","journal-title":"Touhoku Seisai Kiyou."},{"issue":"7","key":"bib12-20240805","doi-asserted-by":"crossref","first-page":"E394","DOI":"10.1097\/BRS.0000000000000791","article-title":"Ossification of the posterior longitudinal ligament of the cervical spine in 3161 patients","volume":"40","author":"Fujimori","year":"2015","journal-title":"Spine (Phila Pa 1976)."},{"issue":"4","key":"bib13-20240805","doi-asserted-by":"crossref","first-page":"498","DOI":"10.1002\/aja.1001920414","article-title":"Human spinal arachnoid septa, trabeculae, and \u201crogue strands.\u201d","volume":"192","author":"Parkinson","year":"1991","journal-title":"Am J Anat."},{"issue":"6","key":"bib14-20240805","doi-asserted-by":"crossref","first-page":"833","DOI":"10.1136\/jnnp.33.6.833","article-title":"Spinal perineurial and meningeal cysts","volume":"33","author":"Tarlov","year":"1970","journal-title":"J Neurol Neurosurg Psychiatry."},{"issue":"5","key":"bib15-20240805","doi-asserted-by":"crossref","first-page":"1104","DOI":"10.3174\/ajnr.A3432","article-title":"Dorsal thoracic arachnoid web and the \u201cscalpel sign\u201d: a distinct clinical-radiologic entity","volume":"34","author":"Reardon","year":"2013","journal-title":"Am J Neuroradiol."},{"issue":"3","key":"bib16-20240805","doi-asserted-by":"crossref","first-page":"554","DOI":"10.1016\/j.spinee.2014.10.023","article-title":"Identification of arachnoid web with a relatively novel magnetic resonance imaging technique","volume":"15","author":"Grewal","year":"2015","journal-title":"Spine J."},{"issue":"4","key":"bib17-20240805","doi-asserted-by":"crossref","first-page":"877","DOI":"10.1007\/s003300100995","article-title":"Thoracic spinal intradural arachnoid cyst: report of two cases and review of literature","volume":"12","author":"Abou-Fakhr","year":"2002","journal-title":"Eur Radiol."}],"container-title":["JBJS Case Connector"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.2106\/JBJS.CC.22.00027","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T13:42:55Z","timestamp":1787751775000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.2106\/JBJS.CC.22.00027"}},"subtitle":["A Report of 3 Cases"],"short-title":[],"issued":{"date-parts":[[2022,4]]},"references-count":17,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2022]]}},"URL":"https:\/\/doi.org\/10.2106\/jbjs.cc.22.00027","relation":{},"ISSN":["2160-3251"],"issn-type":[{"value":"2160-3251","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,4]]}}}