Computational study of kinematics of the anterior cruciate ligament double-bundle structure during passive knee flexion–extension

Otani, Tomohiro; Kobayashi, Yo; Tanaka, Masao

doi:https://doi.org/10.1016/j.medengphy.2020.07.015

Computational study of kinematics of the anterior cruciate ligament double-bundle structure during passive knee flexion–extension

Otani, Tomohiro; Kobayashi, Yo; Tanaka, Masao

Medical Engineering and Physics, 2020, 83, 56-63

アクセス数:133件（2025-04-19 07:23 集計）

固定URL: https://hdl.handle.net/11094/88472

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タイトル	Computational study of kinematics of the anterior cruciate ligament double-bundle structure during passive knee flexion–extension
著者	NRID 1000040778990 1000040778990 ORCID 0000-0002-6431-2703 0000-0002-6431-2703 researchmap permalink bigvalley bigvalley Scopus Author ID 55625962900 55625962900 著者名 Otani, Tomohiro
	NRID 1000050424817 1000050424817 ORCID 0000-0003-4358-6294 0000-0003-4358-6294 researchmap permalink yokobayashi yokobayashi Scopus Author ID 55516137200 55516137200 著者名 Kobayashi, Yo
	NRID 1000040163571 1000040163571 著者名 Tanaka, Masao
キーワード等	Anterior Cruciate Ligament
	Double-bundle structure
	Finite element method
	Functional anatomy
	Passive knee flexion–extension
内容	Otani T., Kobayashi Y., Tanaka M.. Computational study of kinematics of the anterior cruciate ligament double-bundle structure during passive knee flexion–extension. Medical Engineering and Physics, 83, 56-63. https://doi.org/10.1016/j.medengphy.2020.07.015.
抄録	The anterior cruciate ligament (ACL) comprises an anteromedial bundle (AMB) and posterolateral bundle (PLB). Cadaver studies showed that this double-bundle structure exhibits reciprocal function during passive knee flexion–extension, with the PLB taut in knee extension and the AMB taut in knee flexion. In vivo measurements indicated that straight-line lengths of both bundles decrease with increasing knee-flexion angle (KFA). To interpret these seemingly conflicting facts, we developed a computational ACL model simulating the kinematics of the double-bundle structure during passive knee flexion–extension. Tibial and femoral shapes were reconstructed from computed-tomography images of a cadaver knee and used to construct an idealized model of an ACL including its bundles at the tibiofemoral joint. The ACL deformations at various KFAs were computed by finite element analysis. Results showed that the PLB was stretched in knee extension (KFA = 0∘) and slackened with increasing KFA. The AMB was stretched in knee extension (KFA = 0∘) and remained stretched on the medial side when the knee flexed (KFA = 90∘), but its straight-line length decreased with increasing KFA. These findings are consistent with cadaver and in vivo experimental results and highlight the usefulness of a computational approach for understanding ACL functional anatomy.
出版者	Elsevier Ltd
収録物名	Medical Engineering and Physics
巻(号)	83
ページ	56-63
刊行年月	2020-07-29
言語	英語
ハンドルURL	https://hdl.handle.net/11094/88472
PISSN	13504533
eISSN	18734030
NCID	AA10986246
NCID	AA11536904
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1016/j.medengphy.2020.07.015
関連情報 (isIdenticalTo)	PMID 32807348
アクセス権	open access
権利情報	© 2020. This manuscript version is made available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
出版タイプ	Accepted Manuscript
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Medical Engineering and Physics. 2020, 83, p. 56-63
DC.title	Computational study of kinematics of the anterior cruciate ligament double-bundle structure during passive knee flexion–extension
DC.creator	Otani, Tomohiro
	Kobayashi, Yo
	Tanaka, Masao
DC.publisher	Elsevier Ltd
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2020-07-29
DC.identifier	https://doi.org/10.1016/j.medengphy.2020.07.015
DC.subject	Anterior Cruciate Ligament
	Double-bundle structure
	Finite element method
	Functional anatomy
	Passive knee flexion–extension
DC.description	Otani T., Kobayashi Y., Tanaka M.. Computational study of kinematics of the anterior cruciate ligament double-bundle structure during passive knee flexion–extension. Medical Engineering and Physics, 83, 56-63. https://doi.org/10.1016/j.medengphy.2020.07.015.
DCTERMS.abstract	The anterior cruciate ligament (ACL) comprises an anteromedial bundle (AMB) and posterolateral bundle (PLB). Cadaver studies showed that this double-bundle structure exhibits reciprocal function during passive knee flexion–extension, with the PLB taut in knee extension and the AMB taut in knee flexion. In vivo measurements indicated that straight-line lengths of both bundles decrease with increasing knee-flexion angle (KFA). To interpret these seemingly conflicting facts, we developed a computational ACL model simulating the kinematics of the double-bundle structure during passive knee flexion–extension. Tibial and femoral shapes were reconstructed from computed-tomography images of a cadaver knee and used to construct an idealized model of an ACL including its bundles at the tibiofemoral joint. The ACL deformations at various KFAs were computed by finite element analysis. Results showed that the PLB was stretched in knee extension (KFA = 0∘) and slackened with increasing KFA. The AMB was stretched in knee extension (KFA = 0∘) and remained stretched on the medial side when the knee flexed (KFA = 90∘), but its straight-line length decreased with increasing KFA. These findings are consistent with cadaver and in vivo experimental results and highlight the usefulness of a computational approach for understanding ACL functional anatomy.
DC.rights	© 2020. This manuscript version is made available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
DC.format	88472
citation_title	Computational study of kinematics of the anterior cruciate ligament double-bundle structure during passive knee flexion–extension
citation_author	Otani, Tomohiro
	Kobayashi, Yo
	Tanaka, Masao
citation_publisher	Elsevier Ltd
citation_language	英語
citation_date	2020-07-29
citation_journal_title	Medical Engineering and Physics
citation_volume	83
citation_firstpage	56
citation_lastpage	63
citation_doi	https://doi.org/10.1016/j.medengphy.2020.07.015
citation_pmid	32807348
citation_public_url	https://hdl.handle.net/11094/88472

Computational study of kinematics of the anterior cruciate ligament double-bundle structure during passive knee flexion–extension

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