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OBJECTIVE: We aimed to clarify factors which affect the postoperative femoral anteroposterior position relative to the tibia under WB conditions (A-P position) in medial pivot (MP) TKA. METHODS: Among 126 knees (81 women) with primary TKA using MP prosthesis for varus osteoarthritic knees, 70 knees had cruciate-retaining inserts (CR) with the reduced conformity and 56 knees had cruciate-substituting inserts (CS) with the full conformity. Using the three-dimensional (3D) assessment system, the associations between the A-P position and the factors including pre- and postoperative lower extremity alignment, component positions, and posterior femoral condylar offset (PCO), were assessed regarding the type of inserts. RESULTS: Significant correlations were seen between the A-P position and posterior tibial slope (PTS), medial PCO, and lateral PCO. Regarding the difference between the two inserts, the PTS, medial PCO, and lateral PCO significantly correlated with the A-P position in the CR, but only the PTS correlated in the CS. 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Medial pivot型人工膝関節全置換術後の荷重下大腿骨前後位置に脛骨後傾と大腿骨後顆オフセットが関連する
http://hdl.handle.net/10191/0002001072
http://hdl.handle.net/10191/0002001072b632706b-159d-40f5-b547-bb64266f8b40
名前 / ファイル | ライセンス | アクション |
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本文 (570KB)
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要旨 (532KB)
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||
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公開日 | 2023-07-26 | |||||||||
タイトル | ||||||||||
言語 | en | |||||||||
タイトル | Postoperative femoral anteroposterior position while standing correlates with the posterior tibial slope and posterior femoral condylar offset in medial pivot total knee arthroplasty | |||||||||
タイトル | ||||||||||
言語 | ja | |||||||||
タイトル | Medial pivot型人工膝関節全置換術後の荷重下大腿骨前後位置に脛骨後傾と大腿骨後顆オフセットが関連する | |||||||||
言語 | ||||||||||
言語 | eng | |||||||||
キーワード | ||||||||||
言語 | en | |||||||||
主題Scheme | Other | |||||||||
主題 | Femoral anteroposterior position | |||||||||
キーワード | ||||||||||
言語 | en | |||||||||
主題Scheme | Other | |||||||||
主題 | three-dimensional lower extremity alignment assessment system | |||||||||
キーワード | ||||||||||
言語 | en | |||||||||
主題Scheme | Other | |||||||||
主題 | posterior tibial slope | |||||||||
キーワード | ||||||||||
言語 | en | |||||||||
主題Scheme | Other | |||||||||
主題 | posterior condylar offset | |||||||||
キーワード | ||||||||||
言語 | en | |||||||||
主題Scheme | Other | |||||||||
主題 | total knee arthroplasty | |||||||||
資源タイプ | ||||||||||
資源 | http://purl.org/coar/resource_type/c_db06 | |||||||||
タイプ | doctoral thesis | |||||||||
アクセス権 | ||||||||||
アクセス権 | open access | |||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
著者 |
高橋, 勇樹
× 高橋, 勇樹
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抄録 | ||||||||||
内容記述タイプ | Abstract | |||||||||
内容記述 | BACKGROUND: After total knee arthroplasty (TKA), the femur tends to be located posteriorly under weight-bearing (WB) conditions, and a paradoxical femoral anterior motion occurs, leading to joint instability. OBJECTIVE: We aimed to clarify factors which affect the postoperative femoral anteroposterior position relative to the tibia under WB conditions (A-P position) in medial pivot (MP) TKA. METHODS: Among 126 knees (81 women) with primary TKA using MP prosthesis for varus osteoarthritic knees, 70 knees had cruciate-retaining inserts (CR) with the reduced conformity and 56 knees had cruciate-substituting inserts (CS) with the full conformity. Using the three-dimensional (3D) assessment system, the associations between the A-P position and the factors including pre- and postoperative lower extremity alignment, component positions, and posterior femoral condylar offset (PCO), were assessed regarding the type of inserts. RESULTS: Significant correlations were seen between the A-P position and posterior tibial slope (PTS), medial PCO, and lateral PCO. Regarding the difference between the two inserts, the PTS, medial PCO, and lateral PCO significantly correlated with the A-P position in the CR, but only the PTS correlated in the CS. CONCLUSIONS: The increased PTS and decreased PCO were the dominant factors for the A-P position in MP TKA. | |||||||||
言語 | en | |||||||||
内容記述 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | Bio-Medical Materials and Engineering. 2022, 33(1), 51-64. | |||||||||
言語 | en | |||||||||
DOI | ||||||||||
識別子タイプ | DOI | |||||||||
関連識別子 | https://doi.org/10.3233/BME-211299 | |||||||||
権利 | ||||||||||
言語 | en | |||||||||
権利情報 | © 2022 - IOS Press. All rights reserved | |||||||||
学位名 | ||||||||||
言語 | ja | |||||||||
学位名 | 博士(医学) | |||||||||
学位授与機関 | ||||||||||
学位授与機関識別子Scheme | kakenhi | |||||||||
学位授与機関識別子 | 13101 | |||||||||
言語 | ja | |||||||||
学位授与機関名 | 新潟大学 | |||||||||
言語 | en | |||||||||
学位授与機関名 | Niigata University | |||||||||
学位授与年月日 | ||||||||||
学位授与年月日 | 2023-03-23 | |||||||||
学位授与番号 | ||||||||||
学位授与番号 | 甲第5134号 | |||||||||
学位記番号 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | 新大院博(医)第1125号 | |||||||||
言語 | ja |