Mechanical asymmetry during articulation of tibial and femoral cartilages: local and overall compressive and shear deformation and properties.

ABSTRACT: During knee movement, femoral cartilage articulates against cartilage from the tibial plateau, and the resulting mechanical behavior is yet to be fully characterized. The objectives of this study were to determine (1) the overall and depth-varying axial and shear strains and (2) the associated moduli, of femoral and tibial cartilages during the compression and shearing of apposing tibial and femoral samples. Osteochondral blocks from human femoral condyles (FCs) characterized as normal and donor-matched lateral tibial plateau (TP) were apposed, compressed 13%, and subjected to relative lateral motion. When surfaces began to slide, axial (-E(zz)) and shear (E(xz)) strains and compressive (E) and shear (G) moduli, overall and as a function of depth, were determined for femoral and tibial car

SUBMITTER: Wong BL 

PROVIDER: S-EPMC2882527 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature