{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T07:40:34Z","timestamp":1777880434163,"version":"3.51.4"},"reference-count":9,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2002,12,1]],"date-time":"2002-12-01T00:00:00Z","timestamp":1038700800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"},{"start":{"date-parts":[[2002,12,1]],"date-time":"2002-12-01T00:00:00Z","timestamp":1038700800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Orthop Surg (Hong Kong)"],"published-print":{"date-parts":[[2002,12]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose.<\/jats:title>\n                    <jats:p>To evaluate the serial changes in clinical results and the intradural and extradural spaces on magnetic resonance imaging (MRI) after bilateral fenestration in 48 patients with lumbar spinal canal stenosis (LSCS).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods.<\/jats:title>\n                    <jats:p>A prospective interventional study was performed to study the clinical results, magnetic resonance imaging scans among patients who were followed up for more than 3 years.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results.<\/jats:title>\n                    <jats:p>All patients showed improvement in clinical symptoms after operation, but clinical results deteriorated in 9 (19%) patients. Postoperative MRI scans showed that poor dural tube expansion, grouping of the cauda equina, and decrease in the cross-sectional area of the dural tube were factors associated with poor outcomes. The cross-sectional area of the dural tube and images of the cauda equina observed by MRI, before and after fenestration and during follow-up, reflected changes in clinical symptoms involving decompressed segments.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion.<\/jats:title>\n                    <jats:p>Serial changes in the cross-sectional area of the dural tube and images of the cauda equina observed preoperatively, postoperatively, and on follow-up by MRI may be useful when evaluating patients' condition before and after operation. It is also useful for predicting outcomes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/230949900201000206","type":"journal-article","created":{"date-parts":[[2016,10,4]],"date-time":"2016-10-04T17:13:55Z","timestamp":1475601235000},"page":"136-143","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":17,"title":["Postoperative Outcome of Lumbar Spinal Canal Stenosis after Fenestration: Correlation with Changes in Intradural and Extradural Tube on Magnetic Resonance Imaging"],"prefix":"10.1177","volume":"10","author":[{"given":"K","family":"Yamazaki","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Iwate Medical University, 19-1 Uchimaru, Morioka 020-8505, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S","family":"Yosida","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Iwate Medical University, 19-1 Uchimaru, Morioka 020-8505, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T","family":"Ito","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Iwate Medical University, 19-1 Uchimaru, Morioka 020-8505, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T","family":"Toba","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Iwate Medical University, 19-1 Uchimaru, Morioka 020-8505, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S","family":"Kato","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Iwate Medical University, 19-1 Uchimaru, Morioka 020-8505, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T","family":"Shimamura","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Iwate Medical University, 19-1 Uchimaru, Morioka 020-8505, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2002,12,1]]},"reference":[{"key":"bibr1-230949900201000206","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198567020-00009"},{"key":"bibr2-230949900201000206","first-page":"388","volume":"7","author":"Hamanishi C","year":"1994","journal-title":"J Spinql Disod"},{"key":"bibr3-230949900201000206","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-198511000-00005"},{"key":"bibr4-230949900201000206","first-page":"759","volume":"37","author":"Yamazaki K","year":"1985","journal-title":"J Iwate Med Assoc"},{"key":"bibr5-230949900201000206","first-page":"123","volume":"28","author":"Matsubayasi Y","year":"1993","journal-title":"Rinsho Seikei Geka"},{"key":"bibr6-230949900201000206","first-page":"449","volume":"29","author":"Matsui H","year":"1994","journal-title":"Rinsho Seikei Geka"},{"key":"bibr7-230949900201000206","first-page":"1251","volume":"62","author":"Yamazaki K","year":"1988","journal-title":"J Jpn Orthop Assoc"},{"key":"bibr8-230949900201000206","first-page":"480","volume":"68","author":"Yamazaki K","year":"1994","journal-title":"J Jpn Orthop Assoc"},{"key":"bibr9-230949900201000206","first-page":"391","volume":"60","author":"Izumida S","year":"1986","journal-title":"J Jpn Orthop Assoc"}],"container-title":["Journal of Orthopaedic Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/230949900201000206","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/230949900201000206","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:11:18Z","timestamp":1777594278000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/230949900201000206"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2002,12]]},"references-count":9,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2002,12]]}},"alternative-id":["10.1177\/230949900201000206"],"URL":"https:\/\/doi.org\/10.1177\/230949900201000206","relation":{},"ISSN":["1022-5536","2309-4990"],"issn-type":[{"value":"1022-5536","type":"print"},{"value":"2309-4990","type":"electronic"}],"subject":[],"published":{"date-parts":[[2002,12]]}}}