The facial skeleton is a living organ and not wood for carpentry: bone healing as a functional adaptation to mechanical loading: going beyond Wolff's law.

摘要

So, in summary, we still see papers that imply that lag screws are the saviors of the work. In essence, these authors do not understand the mechanics behind the use of the lag screw, or a metal placed in the orbital rim lifting the eyeball way up. Most of the lag-screw proponents use tandem screws and call them lag; I guess it is more sensational. Not understanding the reason for the diplopia is not the job of the poor screws, but the placement of unnecessary screws. Distraction by itself is a process that requires the bone to produce the consolidation needed to have enough mechanical strength to withstand the elastic recoil of the soft tissue. These scientific facts may have been written, and the producers have done a lot to explain that issue. Yet, the technical aspect and the scientific aspect never have a meeting of the hearts or a meeting of the understanding for the wellness of the patients.