Combined compression inside fixed steel plate for fracture

The utility model relates to a combined compression inside fixed steel plate for bone fracture, which is formed by the fact that the original compression inside fixed plate made of a single stainless steel plate is changed into the combination between a main plate and a subsidiary plate that is installed on the main plate through the forms of a dovetail slot, etc. Therefore, the subsidiary plate is horizontally fixed on the main plate and is longitudinally movable. In addition, a spring is pressed between the main plate and the subsidiary plate; both ends of a fractured bone are respectively fixed on the main plate and the subsidiary plate in use. The improved result is helpful for eliminating the defect that the original inside fixed steel plate hinders varying stress from assisting physiological alternating stress; the utility model can compensate the attenuation of pressurization force generated by a pressurization hole. Consequently, the utility model improves the speed and the quality of bone healing.