Abstract: A femoral neck protection device comprises a main body disposed with a hollow sleeve, and a flange extended outwardly from a peripheral rim at one end of the sleeve. At least one aperture is disposed on the flange. A protruding neck portion is disposed at the other end of the sleeve. A bolt disposed inside the neck portion passing through the sleeve and being secured to a prepared femur is engaged with an artificial ball head of the femur.

Abstract: A femoral neck protection device comprises a main body disposed with a hollow sleeve; and a flange extended outwardly from the peripheral rim at one end of the sleeve, so that when this protection device is in use, the fractured head of the femur is removed through a surgical operation and a neck of a femur is trimmed to be fitly inserted into the shape of the sleeve of the present invention; the flange of the sleeve tightly affixes to the surface of the femur so as to completely protect the trimmed femoral neck protection device. In addition to the central hole of the sleeve, at least one aperture is disposed on the flange thereon that allows the new-grown blood vessels and callous formation of the femur to pass through the apertures and cover the flange and integrally connect the sleeve and the femur.