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The Effect Of Plate Rotation On The Stiffness Of Femoral Liss: A Mechanical Study, Afshin Khalafi, Shane Curtiss, Scott Hazelwood, Philip Wolinsky
The Effect Of Plate Rotation On The Stiffness Of Femoral Liss: A Mechanical Study, Afshin Khalafi, Shane Curtiss, Scott Hazelwood, Philip Wolinsky
Biomedical Engineering
Objective: Malposition of the femoral Less Invasive Stabilization System (LISS) plate may alter its biomechanical behavior. This study compares the mechanical stability of ‘‘correctly’’ affixed LISS plates matching the slope of the lateral femoral condyle to ‘‘incorrectly’’ placed LISS plates fixed in external rotation relative to the distal femur.
Methods: A fracture gap model was created to simulate a comminuted supracondylar femur fracture (AO/OTA33-A3). Fixation was achieved using two different plate positions: the LISS plate was either placed ‘‘correctly’’ by internally rotating the plate to match the slope of the lateral femoral condyle, or ‘‘incorrectly’’ by externally rotating the plate …