buttressing it to the medial wall in addition to the advantage provided by the offset mounting holes a widened head portion inherently imparts greater stability for fractures that are directly adjacent to the head portion of the femur by having a larger femoral surface in contact with the implant the widened head gives greater stability to the cortical surface directly below the upper side plate surface the passage created by the upper central mounting hole 34 and lower mounting hole 36 provides a means for placing an additional bone screw into the femoral shaft while simultaneously attaching the upper and lower side plates together the tongue and groove mating provided by the beveled wall 56 engaging the receiving channel 60 provides a laterally stronger implant than previous designs as described in the background section a majority of previous lower side plate designs were made to engage the upper side plate in a 34 dovetail 34 type of attachment this form does not have the bending strength of the present invention and therefore can provide a less desirable implant choice for the surgeon as illustrated in fig5 and 7 after engaging the lower side plate 14 into the upper side plate 12 bone screws are placed in the mounting holes 34 46 and 69 providing a means for securely attaching the femoral implant 10 to the cortical wall 90 of the femoral shaft 80 the widened head embodiment discussed above has elliptical adjacent mounting holes for inserting a plurality of lag screws however other embodiments of the mounting holes are also contemplated as illustrated by fig8 12 in fig8 and 9 the mounting holes are offset with one hole in a higher position.