The anterolateral ligament is a secondary stabilizer in the knee joint A validated computational model of the biomechanical effects of a deficient anterior cruciate ligament and anterolateral ligament on knee joint kinematics

The aim of this study was to investigate the biomechanical effect of the anterolateral ligament (ALL), anterior cruciate ligament (ACL), or both ALL and ACL on kinematics under dynamic loading conditions using dynamic simulation subject-specific knee models. Five subject-specific musculoskeletal mod...

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Published inBone & joint research Vol. 8; no. 11; pp. 509 - 517
Main Authors Kang, Kyoung-Tak, Koh, Yong-Gon, Park, Kyoung-Mi, Choi, Chong-Hyuck, Jung, Min, Shin, Jucheol, Kim, Sung-Hwan
Format Journal Article
LanguageEnglish
Published England British Editorial Society of Bone & Joint Surgery 01.11.2019
Subjects
Anterior Cruciate Ligament
Anterolateral Ligament
Computational Analysis
Electromyography
Gait
Kinematics
Knee
Ligaments
Mechanical loading
Muscle contraction
Anterior cruciate ligament
Computational analysis
Anterolateral ligament
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ISSN2046-3758
2046-3758
DOI10.1302/2046-3758.811.BJR-2019-0103.R1

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Summary:The aim of this study was to investigate the biomechanical effect of the anterolateral ligament (ALL), anterior cruciate ligament (ACL), or both ALL and ACL on kinematics under dynamic loading conditions using dynamic simulation subject-specific knee models. Five subject-specific musculoskeletal models were validated with computationally predicted muscle activation, electromyography data, and previous experimental data to analyze effects of the ALL and ACL on knee kinematics under gait and squat loading conditions. Anterior translation (AT) significantly increased with deficiency of the ACL, ALL, or both structures under gait cycle loading. Internal rotation (IR) significantly increased with deficiency of both the ACL and ALL under gait and squat loading conditions. However, the deficiency of ALL was not significant in the increase of AT, but it was significant in the increase of IR under the squat loading condition. The results of this study confirm that the ALL is an important lateral knee structure for knee joint stability. The ALL is a secondary stabilizer relative to the ACL under simulated gait and squat loading conditions.Cite this article: 2019;8:509-517.
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ISSN:2046-3758
2046-3758
DOI:10.1302/2046-3758.811.BJR-2019-0103.R1