COMPARISON OF THE LOAD-SHARING CHARACTERISTICS BETWEEN PEDICLE-BASED COMPOSITE AND RIGID ROD DEVICES

摘要

Three-dimensional homogenous and transversely isotropic solid elements were used to model the cortical and cancellous cores, the posterior bony parts of the vertebrae. The anterior longitudinal ligament, posterior longitudinal ligament, intertransverse ligament, ligament flavum, capsular ligament, interspinous ligament, and supraspinous ligament were modeled using tension-only truss elements