They hold together everything from the most delicate watch to the largest bridge. The world is literally kept from coming apart by screws and bolts, and yet we don’t often give a thought to these ...

Objective: To compare the fixation stability of the lag screw with a undercut thread design for the dynamic hip screw (DHS) system versus the lag screw with the conventional buttress thread. Methods: ...

Abstract: Traditional techniques of detecting screw thread are complex processes with lower efficiency and higher cost. It has operated in such a manner as to build up an exceedingly powerful ...