Evaluating Cervical Sagittal Alignment in Cervical Myelopathy: Are Sitting Cervical Radiographs and Standing Whole-Spine Radiographs Equally Useful?

• Material Type: 博士論文
• Title: Evaluating Cervical Sagittal Alignment in Cervical Myelopathy: Are Sitting Cervical Radiographs and Standing Whole-Spine Radiographs Equally Useful?
• Author/Editor: Morimoto, Yasuhiko; Shigematsu, Hideki; Iwata, Eiichiro; Tanaka, Masato; Okuda, Akinori; Masuda, Keisuke; Yamamoto, Yusuke; Takeshima, Toshichika; Nakagawa, Yoshiyuki; Tanaka, Yasuhito
• Author Heading: Morimoto, Yasuhiko; Shigematsu, Hideki; Iwata, Eiichiro; Tanaka, Masato; Okuda, Akinori; Masuda, Keisuke; Yamamoto, Yusuke; Takeshima, Toshichika; Nakagawa, Yoshiyuki; Tanaka, Yasuhito
• Publication, Distribution, etc.: SAGE Publications
• Publication Date: 2018-11-15
• Publication Date (W3CDTF): 2018-11-15
• Alternative Title: 頚椎症性脊髄症症例における頚椎アライメント評価 : 坐位頚椎レントゲンと立位全脊椎レントゲンは等しく有用か?
• Periodical title: Global spine journal
• No. or year of volume/issue: 9 6
• Volume: 9
• Issue: 6
• Pages: 591-597
• ISSN (Periodical Title): ISSN : 2192-5682
• Degree grantor/type: 奈良県立医科大学
• Date Granted: 2019-03-15
• Dissertation Number: 甲第702号
• Degree Type: 博士（医学）
• Text Language Code: eng
• Subject Heading: cervical lateral radiograph; whole-spine lateral radiograph; cervical alignment; cervical spondylotic myelopathy; sitting position; occipito-cervical alignment
• Target Audience: 一般
• Note (General): type:Thesis; Study Design: Retrospective review of medical charts and radiographic data. Objectives: We aimed to clarify the differences in cervical alignment findings between sitting cervical lateral radiographs and standing whole-spine lateral radiographs with clavicle positioning in cervical spondylotic myelopathy (CSM) patients. Methods: We retrospectively evaluated the radiographs of 50 consecutive patients who underwent cervical surgery for CSM in our hospital. Cervical sagittal alignment was evaluated based on the C0-2 angles and C2-7 Gore and Cobb angles. Head position was evaluated in terms of the center of gravity of the head to C7 (CGH-C7) angle and the McGregor angle (ie, the angle between the McGregor line and a horizontal line). The T1-slope was also evaluated. Results: The mean values of the CGH-C7 angle and T1-slope were significantly lower, while the mean value of the McGregor angle was significantly higher on whole-spine lateral radiographs with clavicle positioning than on sitting cervical lateral radiographs. The mean values of the C0-2 and C2-7 angles did not differ significantly between the 2 radiographic positioning approaches. Conclusions: Using whole-spine lateral radiographs with clavicle positioning may result in a significantly lower T1-slope and a posterior tilt of the head. In the absence of a compensatory change in cervical alignment, clavicle positioning may force patients to adopt an upward gazing position of the head. These compensatory mechanisms should be considered while evaluating cervical alignment on whole-spine lateral radiographs with clavicle positioning. Surgical planning should take into account the effect of posture on the radiographic appearance of cervical alignment.; 博士（医学）・甲第702号・平成31年3月15日; © The Author(s) 2018. Creative Commons Non Commercial No Derivs CC BY-NC-ND: This article is distributed under the terms of the Creative Commons Attribution-Non Commercial-NoDerivs 4.0 License (http://www.creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).; identifier:Global spine journal Vol.9 No.6 p.591-597 (2019 Sep); identifier:21925682; identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/3550; identifier:Global spine journal, 9(6): 591-597
• Access Restrictions: インターネット公開
• Related Material (DOI): 10.1177/2192568218811841
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 奈良県立医科大学 : 奈良県立医科大学機関リポジトリ GINMU

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