Computed tomographic evaluation of three types of screw trajectories for posterior cervical spine fixation Cervical pedicle screw, lateral mass screw, and paravertebral foramen screw

• Material Type: 博士論文
• Title: Computed tomographic evaluation of three types of screw trajectories for posterior cervical spine fixation Cervical pedicle screw, lateral mass screw, and paravertebral foramen screw
• Author/Editor: 津田, 圭一
• Author Heading: 津田, 圭一
• Publication, Distribution, etc.: Wolters Kluwer Health, Inc.
• Publication Date: 2022-09-07
• Publication Date (W3CDTF): 2022-09-07
• Alternative Title: 頚椎後方固定術における3種類のスクリューの軌道におけるCTを用いた評価：CPS法、LMS法、PVFS法
• Periodical title: Medicine
• No. or year of volume/issue: 101 28
• Volume: 101
• Issue: 28
• Pages: e29857-
• ISSN (Periodical Title): ISSN : 1536-5964
• Degree grantor/type: Nagasaki University (長崎大学)
• Date Granted: 2022-09-07
• Dissertation Number: 甲医歯薬第1465号
• Degree Type: 博士(医学)
• Text Language Code: eng
• Subject Heading: cervical pedicle screw; CT attenuation values; lateral mass screw; paravertebral foramen screw
• Target Audience: 一般
• Note (General): Computed tomography (CT) attenuation values of cervical spine were evaluated in vivo using a clinically relevant group.To compare CT attenuation values between cervical pedicle screw (CPS), lateral mass screw (LMS), and paravertebral foramen screw (PVFS) trajectories.CPS and LMS are commonly used for posterior fixation of the cervical spine. The PVFS method has been reported as a new method. CT attenuation values along the screw trajectory are reportedly associated with screw stability.We identified 45 patients who had undergone whole-body CT for trauma with no injury to the cervical spine. Regions of interest (ROIs) were designated along the trajectories that would be used for CPS, LMS, and PVFS through vertebral pedicles and lateral masses of the C3–C6 vertebrae. CT attenuation values of each ROI were measured and compared between each screw trajectories at each cervical vertebral level. Participants were divided into Group I (age, 20–39 years; n = 12), Group II (age, 40–59 years; n = 17), and Group III (age, 60–79 years; n = 16). CT attenuation values of ROIs were compared between each age group.PVFS trajectories showed higher CT attenuation values than LMS trajectories at every vertebral level and also higher values than CPS trajectories at C5 and C6 levels. CT attenuation values at C3 were lower than those at C4 in the LMS trajectory and lower than those at C5 and C6 in the PVFS trajectory. CT attenuation values were lower in the elder group (>60 years old) than in the other 2 groups for all screw trajectories.CT attenuation values suggested that the PVFS technique may be useful for posterior fixation of the cervical spine in elder patients who require more secure fixation.; 長崎大学学位論文 学位記番号:博(医歯薬)甲第1465号 学位授与年月日:令和4年9月7日; Author: Keiichi Tsuda, Atsushi Tagami, Shuta Yamada, Kazuaki Yokota, Ko Chiba, Akihiko Yonekura, Masato Tomita, Makoto Osaki; Citation: Medicine, 101(28), art.no. e29857; 2022; identifier:Nagasaki University (長崎大学), 博士(医学) (2022-09-07)
• Source: https://nagasaki-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=27741&item_no=1&attribute_id=70&file_no=1 （fulltext）; https://nagasaki-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=27741&item_no=1&attribute_id=70&file_no=1
• Access Restrictions: インターネット公開
• Rights (production): © 2022 the Author(s). Published by Wolters Kluwer Health, Inc. This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
• Related Material: http://hdl.handle.net/10069/00041831
• Related Material (DOI): 10.1097/MD.0000000000029857
• 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): 長崎大学 : 長崎大学学術研究成果リポジトリ