The O’nil system, while morphologically similar to traditional plates, is mechanically similar to external fixators. But it is different from each of these, showing itself to be a new and original system of osteosynthesis. Solidarisation between the self-locking screws and the support is assured by the coupling that is created in the interface between the head of the screw and the tapered bore of the bushing.
O’nil is a stable system that is substantially different from a “traditional” plate. The O’nil system elastically transfers forces that act on the fracture. The structure elastically deforms under the action of such forces, returning to its initial state when the actions cease.