Biomechanical characteristics of the normal medial and lateral porcine knee menisci

M. A. Sweigart, K. A. Athanasiou

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

The purpose of this investigation was to examine the compressive properties of the porcine meniscus at a variety of topographical locations using a creep indentation experiment. Three different solution techniques were used to analyse the creep response of the tissue. Specifically, the indentation stiffness, aggregate modulus, permeability, Poisson's ratio, and shear modulus were determined at six different testing locations (anterior, central, and posterior regions; femoral and tibial sides) of both the medial and lateral porcine menisci. Results indicate topographical variations among the testing locations, with the femoral-anterior portion of the medial meniscus having the highest indentation stiffness (350±110 kPa), aggregate modulus (270±90 kPa), and shear modulus (140 ± 40 kPa). The tibial-posterior region of the medial meniscus exhibited the lowest indentation stiffness (170±40 kPa), aggregate modulus (130±30 kPa), and shear modulus (60±20 kPa). No statistical differences were found at the six tested locations of the lateral meniscus.

Original languageEnglish (US)
Pages (from-to)53-62
Number of pages10
JournalProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Volume219
Issue number1
DOIs
StatePublished - Jan 2005
Externally publishedYes

Keywords

  • Indentation testing
  • Mechanical properties
  • Meniscus
  • Porcine knee joint

ASJC Scopus subject areas

  • Biomedical Engineering
  • Mechanical Engineering

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