FEMORAL STEM AND POST SYSTEM FOR HIP PROSTHESIS

摘要

A femoral stem for use in hip replacement surgery, specifically hip replacement surgery in dogs and similar animals but also inclusive to implants used in humans. More particularly, the invention is directed to a femoral stem that includes a lateral bolt or post that protrudes through the cortex or wall of bone opposite the neck of the femoral stem. The lateral bolt or post reduces the occurrence of subsidence in implanted femoral stems. The lateral bolt or post provides an anchor point on the cortex or wall of bone as opposed to relying solely on the compression of the femoral stem against the wall of the bony canal of the femur being implanted.

主权项

1. A femoral stem for a hip joint prosthesis, comprising:
a femoral base having a generally elongated shape with a proximal end and a distal end; a femoral neck having a generally tubular shape extending from the proximal end of the femoral base and having a concentric axis; a lateral port on a side of the femoral base generally opposite the femoral neck and in line with the concentric axis; and a lateral post having a first end removably secured within the lateral port and a second end extending a predetermined distance from the side of the femoral base.