Efficacy of a computed tomography-based navigation system for placement of the acetabular component in total hip arthroplasty for developmental dysplasia of the hip

• Material Type: 博士論文
• Title: Efficacy of a computed tomography-based navigation system for placement of the acetabular component in total hip arthroplasty for developmental dysplasia of the hip
• Author/Editor: Tsutsui, Takahiko; Goto, Tomohiro; Wada, Keizo; Takasago, Tomoya; Hamada, Daisuke; Sairyo, Koichi
• Author Heading: Tsutsui, Takahiko; Goto, Tomohiro; Wada, Keizo; Takasago, Tomoya; Hamada, Daisuke; Sairyo, Koichi
• Publication, Distribution, etc.: Sage
• Publication Date: 2017-08-29
• Publication Date (W3CDTF): 2017-08-29
• Alternative Title: 発育性股関節形成不全への人工股関節置換術における寛骨臼コンポーネント設置に対するCT-basedナビゲーションシステムの有効性
• Periodical title: Journal of Orthopaedic Surgery
• No. or year of volume/issue: 25 3
• Volume: 25
• Issue: 3
• Pages: 1-7
• ISSN (Periodical Title): ISSN : 2309-4990
• Degree grantor/type: 徳島大学
• Date Granted: 2018-03-23
• Dissertation Number: 甲第3127号
• Degree Type: 博士（医学）
• Text Language Code: eng
• Subject Heading: acetabulum; arthroplasty; hip dislocation; hip joint; osteoarthritis
• Target Audience: 一般
• Note (General): Purpose: Developmental dysplasia of the hip (DDH) presents a considerable surgical challenge in total hip arthroplasty (THA). Although the usefulness of computed tomography (CT)-based navigation in cup alignment has been reported, few reports have evaluated three-dimensional (3-D) cup positioning against the acetabulum specifically in patients with DDH. The purpose of this study was to evaluate the efficacy of a CT-based navigation system for alignment and spatial positioning of the cup in THA for patients with DDH. Methods: We reviewed 174 DDH THA cases in which CT-based navigation was used, and 75 cases in which a mechanical guide was used as a control group. Postoperative cup alignment and spatial positioning were evaluated by superimposition of a 3-D cup template onto the actual implanted cup using postoperative CT images, with pelvic coordinates matching the preoperative planning. Results: The proportion within the combined target zone (inclination and anteversion) was 97.7% in the navigation group and 61.3% in the non-navigation group. The mean absolute error between the intraoperative record and the postoperative measurement was 1.5° ± 1.3° for inclination and 2.1° ± 1.8° for anteversion in the navigation group. For acetabular cup positioning, the mean discrepancy between the preoperative planning and the postoperative measurements was 1.9+1.6 mm on the transverse axis, 2.8 ± 2.3 mm on the longitudinal axis, and 1.7 ± 1.3 mm on the sagittal axis. Conclusion: THA using a CT-based navigation system achieved quite high accuracy of cup alignment angles and spatial cup positioning in primary THA for patients with DDH.
• Format (IMT): application/pdf
• Access Restrictions: インターネット公開
• Rights (production): © The Author(s) 2017 This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and distribution of the work 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).
• Related Material (DOI): 10.1177/2309499017727954
• 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): 徳島大学 : 徳島大学機関リポジトリ

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