Biomechanical analysis of a transiliac internal fixator.
Summary of "Biomechanical analysis of a transiliac internal fixator."
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.
Affiliation
Department of Trauma Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany, Thomas.Dienstknecht@klinik.uni-regensburg.de.
Journal Details
This article was published in the following journal.
Name: International orthopaedics
ISSN: 1432-5195
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21475979
- DOI: http://dx.doi.org/10.1007/s00264-011-1251-5
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