1998
DOI: 10.1002/jor.1100160315
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Fiber‐based anterior cruciate ligament model for biomechanical simulations

Abstract: Although accurate predictions of the behavior and function of the anterior cruciate ligament would aid in diagnosis and operative treatment, no agreement exists on the best way to model the ligament with a reliable description of its mechanical and geometric features. We propose a new model of the anterior cruciate ligament based on multiple viscoelastic curvilinear fibers. This model was used for quasi-static simulations of the passive motion of eight porcine knees, after registration of the passive trajector… Show more

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Cited by 10 publications
(6 citation statements)
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“…Martelli et al 262 created detailed models of the ACL consisting of a large network of viscoelastic discrete elements. Ten "fibers" were used to describe the curved surface geometry between the femoral and tibial insertions of the ACL.…”
Section: Discrete Element Networkmentioning
confidence: 99%
“…Martelli et al 262 created detailed models of the ACL consisting of a large network of viscoelastic discrete elements. Ten "fibers" were used to describe the curved surface geometry between the femoral and tibial insertions of the ACL.…”
Section: Discrete Element Networkmentioning
confidence: 99%
“…This model explains why the anterior fibres of the ACL do not impinge on the femoral notch in extension in the native ACL. Furthermore, the resulting strain for linear fibres is in contrast with measured mechanical properties of the ACL compared to curvilinear fibres where the strain remains consistent with the mechanical properties of the native ACL [8, 16, 19, 24].…”
Section: Discussionmentioning
confidence: 60%
“…In this model, curvilinear fibres are longer in the relaxed position compared to linear fibres. The length of the curvilinear fibres can exceed the distance between insertions for the anterior fibres of the ACL [16]. This model explains why the anterior fibres of the ACL do not impinge on the femoral notch in extension in the native ACL.…”
Section: Discussionmentioning
confidence: 99%
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“…Κλινικά 2-3 mm επιμήκυνσης, όπως μετρώνται κατά τη διάρκεια της επέμβασης, μπορούν να θεωρηθούν αποδεκτά, καθώς το αυτό συμβαίνει και κατά τη λειτουργία του φυσιολογικού χιαστού.4.Στοιχεία προερχόμενα τόσο από ανθρώπους αλλά και από ζώα έχουν δείξει ότι ο ΠΧΣ υπόκεινται σε μικρά φορτία κατά τη διάρκεια της συνηθισμένης καθημερινής δραστηριότητας. Τα φυσιολογικά καθημερινά φορτία του ΠΧΣ που αντιστοιχούν μόνο στο 20% των φορτίων που αντέχει μέχρι του σημείου ρήξης του6,52 .Χρησιμοποιώντας πτωματικά γόνατα νεαρής ηλικίας ο Takai και συν 49. έδειξαν ότι τα φορτία σε ολόκληρο τον ΠΧΣ κατά τη διάρκεια παθητικής κάμψης από 0 0 μέχρι τις 90 0 ήταν λιγότερο από 10Ν.…”
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