The effect of constitutive representations and structural constituents of ligaments on knee joint mechanics.

ABSTRACT: Ligaments provide stability to the human knee joint and play an essential role in restraining motion during daily activities. Compression-tension nonlinearity is a well-known characteristic of ligaments. Moreover, simpler material representations without this feature might give reasonable results because ligaments are primarily in tension during loading. However, the biomechanical role of different constitutive representations and their fibril-reinforced poroelastic properties is unknown. A numerical knee model which considers geometric and material nonlinearities of meniscus and cartilages was applied. Five different constitutive models for the ligaments (spring, elastic, hyperelastic, porohyperelastic, and fibril-reinforced porohyperelastic (FRPHE)) were implemented. Knee joint forces fo

SUBMITTER: Orozco GA 

PROVIDER: S-EPMC5797142 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature