With at least unicortical contact between the main fracture fragments, a wave plate osteosynthesis is a very stiff composite construct. |
In normal bone unicortical screws demonstrate higher than normal fixation strength against three-point bending loads and axial forces.
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Bicortical locked screws are superior to unicortical locked screws in all modes of loading because of the increased working length or additional amount of bone purchase. |
The locked unicortical screw functions like a conventional bicortical screw, but it requires strong anchorage for proper function within a cortex of normal thickness. |
The difference between the pull-out force of bicortical and the unicortical fixation was highly significant for the medial screw fixation and significant for the lateral screw fixation. |