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

Number of Access:612（2025-08-28 23:57 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/88472

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Title
Computational study of kinematics of the anterior cruciate ligament double-bundle structure during passive knee flexion–extension
Creator
NRID
1000040778990 1000040778990
ORCID
0000-0002-6431-2703 0000-0002-6431-2703
researchmap permalink
bigvalley bigvalley
Scopus Author ID
55625962900 55625962900
CreatorName
Otani, Tomohiro
NRID
1000050424817 1000050424817
ORCID
0000-0003-4358-6294 0000-0003-4358-6294
researchmap permalink
yokobayashi yokobayashi
Scopus Author ID
55516137200 55516137200
CreatorName
Kobayashi, Yo
NRID
1000040163571 1000040163571
CreatorName
Tanaka, Masao
Subject
Anterior Cruciate Ligament
Double-bundle structure
Finite element method
Functional anatomy
Passive knee flexion–extension
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.
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.
Publisher
Elsevier Ltd
Source Title
Medical Engineering and Physics
Volume (Issue)
83
Page
56-63
Date of Issued
2020-07-29
Language
English
Handle URL
https://hdl.handle.net/11094/88472
PISSN
13504533
eISSN
18734030
NCID
AA10986246
AA11536904
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1016/j.medengphy.2020.07.015
Relation.isIdenticalTo
PMID
32807348
Access Rights
open access
CopyRight
© 2020. This manuscript version is made available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article