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ID 111433
タイトル別表記
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
著者
筒井, 貴彦 徳島大学大学院医科学教育部(医学専攻) KAKEN研究者をさがす
高砂, 智哉 Tokushima University
キーワード
acetabulum
arthroplasty
hip dislocation
hip joint
osteoarthritis
資料タイプ
学位論文
抄録
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.
掲載誌名
Journal of Orthopaedic Surgery
ISSN
23094990
出版者
Sage
25
3
開始ページ
1
終了ページ
7
発行日
2017-08-29
備考
内容要旨・審査要旨・論文本文の公開
本論文は, 著者Takahiko Tsutsuiの学位論文として提出され, 学位審査・授与の対象となっている。
権利情報
© 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).
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
博士論文全文を含む
文科省報告番号
甲第3127号
学位記番号
甲医第1361号
学位授与年月日
2018-03-23
学位名
博士(医学)
学位授与機関
徳島大学
部局
病院
医学系