This device addresses the treatment of femoral neck trauma which includes
basilar, mid-cervical and sub-cap fractures. The assembly has a lag screw
assembly, side plate, compression screw and cortical screw, which are
implantable. A syringe adaptor instrument delivers ortho-biologic
material to the fracture site through the lag screw assembly. The lag
screw assembly utilizes a cannulated screw with external threads and
deployable tangs to anchor into the femoral head and is implanted in such
a manner as to have the lag screw threads and tangs located on the
opposite side of the fracture from the side plate. The distal shaft of
the lag screw interfaces with the side plate in a manner which allows
axial translation only. To deliver ortho-biologic material to the
fracture site, the syringe adaptor instrument is inserted into the
cannulated lag screw prior to the installation of the compression screw
and the material is forced through it and out exit holes located
circumferentially around the lag screw between the fracture site and the
deployable tangs.