Method and apparatus for augmentation of the femoral neck

An implant for augmenting a bony structure comprising:

• a generally cylindrical hollow tube having length, said tube being for insertion in a hole formed in said bony structure, said tube having a distal end and a proximal end and being at least partially open axially at each said end;
• means for attaching said distal end of said implant to said bony structure at an entrance to said hole, in use of said implant a first pressure seal being formed between said implant and said bony structure;
• a plurality of openings through a cylindrical wall of said hollow tube for cement flow therethrough, said openings being distributed along said tube length substantially from said proximal end to said distal end;
• means within said hollow tube for connecting to a cement injection unit in a sliding engagement, said engagement being substantially leak-tight to said cement and permitting air to flow therethrough, said sliding engagement allowing delivery of cement from said injection unit through said implant openings directly at selected locations along said implant length.

An implant for augmenting a bony structure comprising:

• a generally cylindrical hollow tube having length, said tube being for insertion in a hole formed in said bony structure, said tube having a distal end and a proximal end and being at least partially open axially at each said end;
• means for attaching said distal end of said implant to said bony structure at an entrance to said hole, in use of said implant a first pressure seal being formed between said implant and said bony structure;
• a plurality of openings through a cylindrical wall of said hollow tube, said openings being distributed along said tube length;
• and
• a plurality of cantilevered fingers extending longitudinally from a cylindrical portion of said implant toward said proximal end, said openings including spaces between said fingers.