Elucidation of the association between additional distal femoral resection and extension angle improvement following the actual surgical steps with the Robot-TKA system

Hishimura, Ryosuke; Iwasaki, Koji; Suzuki, Yuki; Matsuoka, Masatake; Onodera, Tomohiro; Kondo, Eiji; Iwasaki, Norimasa

Elucidation of the association between additional distal femoral resection and extension angle improvement following the actual surgical steps with the Robot-TKA system

Hishimura, Ryosuke; Iwasaki, Koji; Suzuki, Yuki et al.

Knee, 2024, 49, 36-44

Permalink : https://hdl.handle.net/2115/95900

このアイテムのアクセス数:137件（2026-08-27 02:18 集計）

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アクセス権	open access
URI	https://hdl.handle.net/2115/95900
タイトル	Elucidation of the association between additional distal femoral resection and extension angle improvement following the actual surgical steps with the Robot-TKA system
著者	Hishimura, Ryosuke ; Iwasaki, Koji ; Suzuki, Yuki ; Matsuoka, Masatake ; Onodera, Tomohiro ; Kondo, Eiji ; Iwasaki, Norimasa
e-Rad_Researcher 50844742 著者名 Hishimura, Ryosuke
e-Rad_Researcher 40771895 著者名 Iwasaki, Koji
著者名 Suzuki, Yuki
e-Rad_Researcher 70816066 著者名 Matsuoka, Masatake
e-Rad_Researcher 70547174 著者名 Onodera, Tomohiro
e-Rad_Researcher 60374724 著者名 Kondo, Eiji
e-Rad_Researcher 30322803 著者名 Iwasaki, Norimasa
言語	英語
キーワード	Correction angle of flexion contracture
	Additional distal femoral resection
	Robot-assisted TKA
発行日	2024-08
出版者	Elsevier
収録物名	Knee
巻(号)	49
ページ	36-44
抄録	Background: This study investigates the association between additional distal femoral resection and improved flexion contracture in total knee arthroplasty (TKA) with a robot-assisted system. Flexion contracture is a common issue in patients with knee osteoarthritis, which causes postoperative complications and functional limitations. This study aims to evaluate the effectiveness of additional bone resection in flexion contracture correction and knee extension angle improvement after the actual surgical steps. Methods: The study included 11 patients who underwent posterior-stabilized (PS)-type TKA with a robot-assisted system. The surgical technique consisted of precise bone resection and range of motion evaluation using a navigation system. A precut technique was used to facilitate posterior access and remove osteophytes that cause the contracture. The amount of additional distal femoral resection was determined based on the thickness of the insert trial required for achieving full extension. Results: The flexion contracture correction angle and the amount of additional distal femoral resection demonstrated a linear relationship. An average of 2.0 degrees with the standard error (SE) of 0.6 degrees improvement in flexion contracture was observed per 1.0 mm of additional bone resection. The postoperative evaluation demonstrated a significant improvement in knee extension angle, thereby reducing the contracture degree. Conclusion: This study was the first to perform the additional distal femoral resection on the living knee, which closely replicates the actual surgical steps. The current study revealed that an additional 1.0 mm of distal femoral resection in PS-type TKA improves knee extension angle by 2.0 degrees (SE 0.6 degrees) within an additional resection range of 1.0 mm to 3.3 mm. O 2024 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
権利情報	© 2024, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
PISSN	0968-0160
EISSN	1873-5800
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.knee.2024.05.007