Fiber-based anterior cruciate ligament model for biomechanical simulations

S. Martelli, A. Joukhadar, S. Zaffagnini, M. Marcacci, S. Lavallee, G. Champleboux

Research output: Contribution to journalArticlepeer-review

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 trajectories and digitization of the surface of the ligament in flexion. Simulations of anterior cruciate ligament deformations during passive motion predicted a fiber strain of less than 20%, low insertion forces, and isometric anterior fibers. The model explains actions of the ligament fibers, as reported in the literature, better than classic models based on linear fibers and consistent with the mechanical properties of the anterior cruciate ligament.

Original languageEnglish
Pages (from-to)379-385
Number of pages7
JournalJournal of Orthopaedic Research
Volume16
Issue number3
DOIs
Publication statusPublished - May 1998

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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