{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T20:31:30Z","timestamp":1773693090968,"version":"3.50.1"},"reference-count":21,"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":[[2022,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>\n          Background and Study Aims\u2003Although laminectomy with lateral mass screw fixation (LCSF) is an effective surgical treatment for cervical spondylotic myelopathy (CSM), loss of cervical curvature may result. This study aimed to investigate the effect of cervical curvature on spinal cord drift distance and clinical efficacy.<\/jats:p><jats:p>\n          Patients and Methods\u2003We retrospectively analyzed 78 consecutive CSM patients with normal cervical curvature who underwent LCSF. Cervical curvature was measured according to Borden's method 6 months after surgery. Study patients were divided into two groups: group A, reduced cervical curvature (cervical lordosis depth 0\u20137mm; n\u2009=\u200942); and group B, normal cervical curvature (cervical lordosis depth 7\u201317mm; n\u2009=\u200936). Spinal cord drift distance, laminectomy width, neurologic functional recovery, axial symptom (AS) severity, and incidence of C5 palsy were measured and compared.<\/jats:p><jats:p>\n          Results\u2003Cervical lordosis depth was 5.1\u2009\u00b1\u20091.2\u2009mm in group A and 12.3\u2009\u00b1\u20092.4\u2009mm in group B (p\u2009&lt;\u20090.05). Laminectomy width was 21.5\u2009\u00b1\u20092.6\u2009mm in group A and 21.9\u2009\u00b1\u20092.8\u2009mm in group B (p\u2009&gt;\u20090.05). Spinal cord drift distance was significantly shorter in group A (1.9\u2009\u00b1\u20090.4 vs. 2.6\u2009\u00b1\u20090.7\u2009mm; p\u2009&lt;\u20090.05). The Japanese Orthopaedic Association (JOA) score significantly increased after surgery in both groups (p\u2009&lt;\u20090.05). Neurologic recovery rate did not differ between the two groups (61.5 vs. 62.7%; p\u2009&gt;\u20090.05). AS severity was significantly higher in group A (p\u2009&lt;\u20090.05). C5 palsy occurred in three group A patients (7.1%) and four group B patients (11.1%), but the difference was not significant (p\u2009&gt;\u20090.05).<\/jats:p><jats:p>\n          Conclusion\u2003After LCSF, 53.8% of the patients developed loss of cervical curvature. A smaller cervical curvature resulted in a shorter spinal cord drift distance. Loss of cervical curvature was related to AS severity but not improvement of neurologic function or incidence of C5 palsy.<\/jats:p>","DOI":"10.1055\/s-0041-1723807","type":"journal-article","created":{"date-parts":[[2021,10,11]],"date-time":"2021-10-11T22:55:19Z","timestamp":1633992919000},"page":"129-134","source":"Crossref","is-referenced-by-count":7,"title":["Relationship of Change in Cervical Curvature after Laminectomy with Lateral Mass Screw Fixation to Spinal Cord Shift and Clinical Efficacy"],"prefix":"10.1055","volume":"83","author":[{"given":"Shu-bing","family":"Hou","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, The Third Hospital of Shijiazhuang City, Shijiazhuang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xian-ze","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, The Third Hospital of Shijiazhuang City, Shijiazhuang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Feng-yu","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, The Third Hospital of Shijiazhuang City, Shijiazhuang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rui","family":"Gong","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, The Third Hospital of Shijiazhuang City, Shijiazhuang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zheng-qi","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, The Third Hospital of Shijiazhuang City, Shijiazhuang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kuan","family":"Lu","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, The Third Hospital of Shijiazhuang City, Shijiazhuang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yan-bing","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Spine Surgery, The Third Hospital of Shijiazhuang City, Shijiazhuang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2021,10,11]]},"reference":[{"issue":"10","key":"ref1","doi-asserted-by":"crossref","first-page":"408","DOI":"10.1097\/BSD.0000000000000397","article-title":"Cervical spondylotic myelopathy","volume":"29","author":"A Iyer","year":"2016","journal-title":"Clin Spine Surg"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"S171","DOI":"10.1097\/BRS.0b013e3182a7f4ff","article-title":"Surgical management of degenerative cervical myelopathy: a consensus statement","volume":"38","author":"B D 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fixation for treating multi-segment cervical spondylotic myelopathy: does it effectively improve neurological function and prevent C5 palsy?","volume":"97","author":"Y J Zhao","year":"2018","journal-title":"Medicine (Baltimore)"},{"issue":"05","key":"ref6","doi-asserted-by":"crossref","first-page":"508","DOI":"10.3171\/2017.4.SPINE16831","article-title":"Laminoplasty versus laminectomy with posterior spinal fusion for multilevel cervical spondylotic myelopathy: influence of cervical alignment on outcomes","volume":"27","author":"D Lau","year":"2017","journal-title":"J Neurosurg Spine"},{"issue":"01","key":"ref7","doi-asserted-by":"crossref","first-page":"24","DOI":"10.4184\/asj.2017.11.1.24","article-title":"Does segmental kyphosis affect surgical outcome after a posterior decompressive laminectomy in multisegmental cervical spondylotic myelopathy?","volume":"11","author":"A Jain","year":"2017","journal-title":"Asian Spine 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Monit"},{"issue":"01","key":"ref14","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1016\/j.spinee.2013.06.017","article-title":"Enlarged laminectomy and lateral mass screw fixation for multilevel cervical degenerative myelopathy associated with kyphosis","volume":"14","author":"W Du","year":"2014","journal-title":"Spine J"},{"issue":"01","key":"ref15","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"},{"issue":"02","key":"ref16","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1016\/j.spinee.2006.07.007","article-title":"Preservation of the spinous process-ligament-muscle complex to prevent kyphotic deformity following laminoplasty","volume":"7","author":"J Liu","year":"2007","journal-title":"Spine 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