TRANS-ILIAC DYNAMIC NAIL FOR MINIMALLY INVASIVE FIXATION OF THE POSTERIOR PELVIC RING INJURY: A BIOMECHANICAL STUDY.

The treatment of posterior pelvic ring fracture with the early mobilization purpose is surgery, which traditionally uses screws and sacral bar. We have created a new trans-iliac dynamic nail (TIDN) for fixation of the posterior pelvic ring. The advantage of TIDN is minimally invasion due to combination of interlocking nailing with the possibility of compression and decompression. Exam the biomechanical properties of a new trans-iliac dynamic nail (TIDN). The current biomechanical study investigated: dynamic tensile and compression tests; static torsional, compression, tensile tests. The study yielded equivalent results for the static torsional test and in dynamic tests, but found the TIDN superior in the static compression test and static tensile test in comparison with other researchers. Based upon the results of this biomechanical study, we conclude that the TIDN proved to be an effective device for posterior pelvic ring injury fixation. The clinical trial should be next.