Three-dimensional finite element analysis of several internal and externalpelvis fixations

The Finite Element Method (FEM) can be used to analyze very complex geometr ies, such as the pelvis, and complicated constitutive behaviors, such as th e heterogeneous, nonlinear and anisotropic behavior of bone tissue or the n oncompression, nonbending character of ligaments. Here, FEM was used to sim ulate the mechanical ability of several method for each individual treatmen t. The stability of open-book fractures with external external and internal fixations that stabilize pelvic ring disruptions. A customized pelvic frac ture analysis was performed by computer simulation to determine the best fi xation fixations at either the iliac crests or the pelvic equator was simil ar, and increased greatly when they were used in combination. However, exte rnal fixations did not effectively stabilize rotationally and vertically un stable fractures. Adequate stabilization was only achieved using an interna l pubis fixation with two sacroiliac screws. [S0148-0731(00)00905-5].