{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,7,26]],"date-time":"2024-07-26T23:11:18Z","timestamp":1722035478113},"reference-count":22,"publisher":"Georg Thieme Verlag KG","issue":"02","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Neurol Surg A Cent Eur Neurosurg"],"published-print":{"date-parts":[[2021,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>\n          Background and Study Aim\u2003Cervical spondylotic myelopathy (CSM) is a common degenerative disease that mainly occurs in elder patients, leading to different degrees of neurological dysfunction. Spinal cord involvement is mainly distributed at the C3\u2013C7 segments, but it may also involve up to the C2 level. This study aimed to assess the clinical efficacy and safety of open-door laminoplasty using a new extensor attachment-point reconstruction technique for treating CSM involving the C2 segment.<\/jats:p><jats:p>\n          Patients and Methods\u2003Fifty-nine patients with CSM involving the C2 segment and undergoing open-door laminoplasty were included in this retrospective study. Based on the titanium plate used in the operation, patients were divided into two groups, a reconstructed titanium plate fixation (RPF) group (n\u2009=\u200928) and a conventional titanium plate fixation (CPF) group (n\u2009=\u200931). Improvements in neurological function, cervical range of motion (ROM), cervical curvature index (CCI), preservation of posterior cervical muscle mass, and axial symptoms were compared between the two groups.<\/jats:p><jats:p>\n          Results\u2003There were no significant differences in operative time and intraoperative blood loss between the groups (p\u2009&gt;\u20090.05). The Japanese Orthopaedic Association (JOA) score significantly increased in both groups postsurgery (p\u2009&lt;\u20090.05); the neurological recovery rate was similar between the two groups (64.1\u2009\u00b1\u200913.3% vs. 65.9\u2009\u00b1\u200914.7%, p\u2009&gt;\u20090.05). There was no significant loss of cervical ROM in either group (p\u2009&gt;\u20090.05). The anteroposterior dural sac diameter at the C2 level was significantly enlarged in both groups (p\u2009&lt;\u20090.05). Alternatively, CCI was significantly reduced in the CRP group (p\u2009&lt;\u20090.05) but unchanged in the RPF group (p\u2009&gt;\u20090.05). The cross-sectional area of the posterior cervical muscles was also significantly reduced in the CPF group (p\u2009&lt;\u20090.05) but maintained in the RPF group (p\u2009&gt;\u20090.05). Finally, axial symptoms were more severe in the CPF group than in the RPF group (p\u2009&lt;\u20090.05).<\/jats:p><jats:p>\n          Conclusion\u2003Laminoplasty is an effective surgical procedure for CSM involving the C2 segment. The reconstructed titanium plate achieved superior maintenance of cervical curvature and reduced both muscle atrophy and severity of axial symptoms compared with titanium conventional plates.<\/jats:p>","DOI":"10.1055\/s-0040-1719102","type":"journal-article","created":{"date-parts":[[2020,12,23]],"date-time":"2020-12-23T00:29:06Z","timestamp":1608683346000},"page":"169-175","source":"Crossref","is-referenced-by-count":3,"title":["A New Posterior Extensor Attachment-Point Reconstruction Technique for Cervical Spondylotic Myelopathy Involving C2 Segment: Clinical Outcome and Safety"],"prefix":"10.1055","volume":"82","author":[{"given":"Hai-Yun","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, Tianjin Hospital, Tianjin, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yun-Ge","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, Tianjin Hospital, Tianjin, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dong","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, Tianjin Hospital, Tianjin, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gui-Ming","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, Tianjin Hospital, Tianjin, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yi","family":"Ma","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, Tianjin Hospital, Tianjin, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yong-Hong","family":"Hao","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, Tianjin Hospital, Tianjin, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qiang","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, Tianjin Hospital, Tianjin, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2020,12,22]]},"reference":[{"issue":"09","key":"ref1","doi-asserted-by":"crossref","first-page":"1367","DOI":"10.1007\/s00586-005-0025-4","article-title":"Effectiveness of multiple-level decompression in laminoplasty and simultaneous C1 laminectomy for patients with cervical myelopathy","volume":"15","author":"J Zhang","year":"2006","journal-title":"Eur Spine J"},{"issue":"11","key":"ref2","doi-asserted-by":"crossref","first-page":"1294","DOI":"10.1097\/01.brs.0000163881.32008.13","article-title":"Can laminoplasty maintain the cervical alignment even when the C2 lamina is contained?","volume":"30","author":"K Takeshita","year":"2005","journal-title":"Spine"},{"issue":"06","key":"ref3","doi-asserted-by":"crossref","first-page":"1029","DOI":"10.1007\/s00590-018-2159-1","article-title":"Variation of C1 spinolaminar line and prevalence of C1 stenosis in normal 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fixation","volume":"94","author":"Z Cheng","year":"2015","journal-title":"Medicine (Baltimore)"},{"issue":"S 04","key":"ref7","doi-asserted-by":"crossref","first-page":"S509","DOI":"10.1007\/s00586-011-2138-2","article-title":"C2 lamina reconstruction using locking miniplate for the intradural tumor of the craniocervical junction (two case reports)","volume":"21","author":"H Ikuma","year":"2012","journal-title":"Eur Spine J"},{"issue":"09","key":"ref8","doi-asserted-by":"crossref","first-page":"1375","DOI":"10.1007\/s00586-006-0089-9","article-title":"C3-6 laminoplasty takes over C3-7 laminoplasty with significantly lower incidence of axial neck pain","volume":"15","author":"N Hosono","year":"2006","journal-title":"Eur Spine J"},{"issue":"08","key":"ref9","doi-asserted-by":"crossref","first-page":"642","DOI":"10.1097\/BRS.0000000000000252","article-title":"Comparative effectiveness of open-door laminoplasty versus French-door laminoplasty in cervical compressive myelopathy","volume":"39","author":"H Nakashima","year":"2014","journal-title":"Spine"},{"issue":"03","key":"ref10","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1007\/s00776-009-1331-1","article-title":"Preserving the C7 spinous process with its muscles attached: effect on axial symptoms after cervical laminoplasty","volume":"14","author":"K Kowatari","year":"2009","journal-title":"J Orthop Sci"},{"issue":"22","key":"ref11","doi-asserted-by":"crossref","first-page":"2544","DOI":"10.1097\/01.brs.0000186332.66490.ba","article-title":"Axial symptoms after cervical laminoplasty with C3 laminectomy compared with conventional C3-C7 laminoplasty: a modified laminoplasty preserving the semispinalis cervicis inserted into axis","volume":"30","author":"K Takeuchi","year":"2005","journal-title":"Spine"},{"key":"ref12","doi-asserted-by":"crossref","first-page":"1188","DOI":"10.12659\/MSM.909140","article-title":"Efficacy of laminoplasty in patients with cervical kyphosis","volume":"24","author":"S Qian","year":"2018","journal-title":"Med Sci Monit"},{"issue":"47","key":"ref13","doi-asserted-by":"crossref","first-page":"e13335","DOI":"10.1097\/MD.0000000000013335","article-title":"The time course of cervical alignment after cervical expansive laminoplasty: determining optimal cut-off preoperative angle for predicting postoperative kyphosis","volume":"97","author":"I Choi","year":"2018","journal-title":"Medicine (Baltimore)"},{"issue":"01","key":"ref14","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1007\/s00586-014-3605-3","article-title":"The severity of operative invasion to the posterior muscular-ligament complex influences cervical sagittal balance after open-door laminoplasty","volume":"24","author":"S Lin","year":"2015","journal-title":"Eur Spine J"},{"key":"ref15","first-page":"569","article-title":"Axial symptoms after cervical laminoplasty","volume":"37","author":"J L Jiang","year":"2017","journal-title":"Zhonghua Guke Zazhi"},{"issue":"11","key":"ref16","doi-asserted-by":"crossref","first-page":"1198","DOI":"10.1097\/00007632-198911000-00011","article-title":"Dome-like expansive laminoplasty for the second cervical vertebra","volume":"14","author":"H Matsuzaki","year":"1989","journal-title":"Spine"},{"issue":"05","key":"ref17","doi-asserted-by":"crossref","first-page":"413","DOI":"10.3171\/SPI\/2008\/8\/5\/413","article-title":"Factors associated with cervical instability requiring fusion after cervical laminectomy for intradural tumor resection","volume":"8","author":"D M Sciubba","year":"2008","journal-title":"J Neurosurg Spine"},{"issue":"01","key":"ref18","doi-asserted-by":"crossref","first-page":"15","DOI":"10.1055\/s-0032-1307258","article-title":"Open-door cervical laminoplasty with preservation of posterior structures","volume":"2","author":"K G Abdullah","year":"2012","journal-title":"Global Spine 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cohort study","volume":"21","author":"Y Kotani","year":"2012","journal-title":"Eur Spine J"},{"issue":"05","key":"ref22","doi-asserted-by":"crossref","first-page":"710","DOI":"10.1002\/ca.23074","article-title":"Association between cervical lordotic curvature and cervical muscle cross-sectional area in patients with loss of cervical lordosis","volume":"31","author":"S Y Yoon","year":"2018","journal-title":"Clin Anat"}],"container-title":["Journal of Neurological Surgery Part A: Central European 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