The utility model relates to an orthopedic operation apparatus 1,The utility model is used to reduce the fixation force of the bone nail engagement partNo dead spaceWithout expanding the guide hole of the screw, the,A moderate amount of compression force is applied by simple means to the bone slices opened due to osteotomy or fracture,It has: fixed assembly 2,It is fixed to bone B；The rotator 5；Rotating body holding assembly 4,It is installed in the fixed assembly 2 at a position different from the fixed position fixed to the bone B,The rotator 5 is supported so that the rotator is rotatable with the rotation axis intersecting the surface of the bone B as the axis,The rotator 5 can be engaged with the bone B,The anchor part 6 is located on the eccentric axis eccentric to the rotation axis.一種骨科手術用器具1，其係用於在不降低骨釘嚙合部的固定力、不增加死腔、不擴張骨釘的導孔之情況下，藉由簡便手段施加適度的壓迫力至因截骨術或骨折而打開的骨片間，其具備：固定組件2，其固定於骨B；旋轉體5；旋轉體容置組件4，其係安裝於該固定組件2中不同於固定至該骨B之固定位置的位置，且支撐該旋轉體5使得該旋轉體以與該骨B的表面相交的旋轉軸線為軸而呈可旋轉，且旋轉體5具備可與該骨B卡合，且位於相對於該旋轉軸線偏心的偏心軸線上的錨固部6。
