Simulated weightbearing computed tomography for verification of radiographic staging of varus ankle osteoarthritis: a cross-sectional study. 1

• Material Type: 博士論文
• Title: Simulated weightbearing computed tomography for verification of radiographic staging of varus ankle osteoarthritis: a cross-sectional study.
• Volume: 22 1
• Author/Editor: Tomiwa, Kiyonori; Tanaka, Yasuhito; Kurokawa, Hiroaki; Kadono, Kunihiko; Taniguchi, Akira; Maliwankul, Korakot
• Author Heading: Tomiwa, Kiyonori; Tanaka, Yasuhito; Kurokawa, Hiroaki; Kadono, Kunihiko; Taniguchi, Akira; Maliwankul, Korakot
• Publication, Distribution, etc.: BioMed Central
• Publication Date: 2021-08-28; 22 1
• Publication Date (W3CDTF): 2021-08-28
• Alternative Title: 内反型変形性足関節症でのX線像による病期分類を検証するための荷重をシミュレーションしたコンピュータ断層撮影について : 横断研究
• Periodical title: BMC musculoskeletal disorders
• Pages: Article No.737-
• ISSN (Periodical Title): 14712474
• Degree Grantor: 奈良県立医科大学
• Date Granted: 2021-12-21
• Date Granted (W3CDTF): 2021-12-21
• Dissertation Number: 乙第1514号
• Degree Type: 博士（医学）
• Conferring No. (Dissertation): 乙第1514号
• Text Language Code: eng
• Subject Heading: Ankle osteoarthritis; varus; Stage classification; Weight-bearing computed tomography
• Target Audience: 一般
• Note (General): type:Thesis; Background: Varus ankle osteoarthritis is classified using only weightbearing anteroposterior ankle radiographs; however, sagittal ankle alignment may also affect the position and extent of joint space obliteration. We hypothesized that the sagittal alignment of the ankle may also affect the position and extent of joint space obliteration visible on the coronal section; therefore, we identified the sites of joint space obliteration in patients with stage 3 varus ankle osteoarthritis for comparison with the sites observed on simulated weightbearing computed tomography and investigated the effects of anterior and posterior ankle subluxation. Methods: Simulated weightbearing computed tomography scans of 83 ft with varus ankle osteoarthritis (26 stage 3a, 57 stage 3b) were performed to check for joint space obliteration in the ankle. Further classification as exhibiting either anterior, posterior, or no subluxation on weightbearing lateral radiographs was performed. Results: Anterior, posterior, and no subluxation was seen in 5, 9, and 12 ankles among the 26 classified as stage 3a, respectively, and in 22, 12, and 23 ankles among the 57 classified as stage 3b, respectively. The mean tibial lateral surface angle on weightbearing lateral radiographs in stage 3a ankles was 75.6, 83.3, and 80.3 degrees in the anterior, posterior, and no subluxation groups, respectively; and 75.5, 86.6, and 82.7 degrees in stage 3b ankles (p < .05). In stage 3b ankles, widespread joint space obliteration was observed at the anterior distal articular surface of the tibia in all 22 ankles with anterior subluxation and at the posterior distal articular surface of the tibia in all 12 ankles with posterior subluxation. Conclusions: Simulated weightbearing computed tomography revealed joint space obliteration at the anterior distal articular surface of the tibia in stage 3b ankles with anterior subluxation and at the posterior side in stage 3a and 3b ankles with posterior subluxation. In some patients with stage 3 varus ankle osteoarthritis, the obliteration of the joint space is difficult to evaluate accurately using only weightbearing anteroposterior radiographs; weightbearing lateral radiographs should also be performed.; 博士（医学）・乙第1514号・令和3年12月21日; © The Author(s). 2021, corrected publication 2021. Open Access This article is licensed under a Creative Commons Attribution4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, aslong as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence,and indicate if changes were made. The images or other third party material in this article are included in the article's CreativeCommons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's CreativeCommons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will needto obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.; identifier:BMC musculoskeletal disorders Vol.22 No.1 Article No.737 (2021 Aug); identifier:14712474; identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/3959; identifier:BMC musculoskeletal disorders, 22(1): Article No.737
• Persistent ID (NDL): info:ndljp/pid/12219034; https://dl.ndl.go.jp/pid/12219034
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2022-04-04T15:10:33+09:00
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Related Material (URI): https://doi.org/10.1186/s12891-021-04618-6
• Periodical Title (URI): http://hdl.handle.net/10564/3959
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

Table of Contents

2023-12-06 再収集

2023-12-06 再収集

2023-12-06 再収集

2023-12-06 再収集