Purpose: We evaluated the biomechanical characteristics of the transiliac internal fixator (TIFI) as compared to two well-established methods of internal posterior pelvic ring fixation. Methods: Six freshly frozen human pelves were used for simulated single-leg stance loading of an AO type C injury model (pubic symphysis diastasis and unilateral sacroiliac joint disruption). The symphysis rupture was stabilized with a dynamic compression plate. Afterwards the three internal stabilization systems (TIFI, iliosacral screws and ventral plate osteosynthesis) were analysed. Fragment movement was measured in a contact-free manner with a stereophotometric infrared system. Results: No significant differences in the three-dimensional deformation tolerated by the TIFI as compared to the other internal fixation systems were found. Conclusions: The transiliac internal fixator provides the same biomechanical stability as the other reference implants tested. We suggest the use of this device as a suitable alternative to the other implants. © 2011 Springer-Verlag.
CITATION STYLE
Dienstknecht, T., Berner, A., Lenich, A., Zellner, J., Mueller, M., Nerlich, M., & Fuechtmeier, B. (2011). Biomechanical analysis of a transiliac internal fixator. International Orthopaedics, 35(12), 1863–1868. https://doi.org/10.1007/s00264-011-1251-5
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