Biomechanical analysis of different treatment strategies for vertically unstable pelvic fractures using a musculoskeletal finite element model

Pelvic fracture is a disruption of the bony structures of the pelvis. Pelvic fracture fixations are needed to restore the original position. The present study investigated the strengths and limitations of different treatment strategies for vertically unstable pelvic fractures using a three-dimensional musculoskeletal finite element model with various physiological spinal movements. The fixation stability, implant stress, and bone stress of each treatment were calculated and discussed. The biomechanical performances of the fixation strategies could be effectively evaluated using the numerical finite element models. The present study can provide engineers and surgeons with the understanding of the biomechanics of various fixation techniques for the treatment of vertically unstable pelvic fractures.