Patent ID: 7601155

Claim:
In an instrument system for preparing a proximal femur for total hip replacement, the improvement comprising an intermedullary femoral broach, including: a) an elongated body having a proximal portion, a distal portion, and a buttress between said portions; b) said proximal portion having smooth outer walls and a proximal end, said smooth outer walls having a substantially constant cross-sectional configuration proximal of said buttress such that an instrument may be slid along said proximal portion from said proximal end toward said buttress; c) said distal portion having a sharp pointed distal end and peripheral walls including a plurality of linear longitudinally extending parallel cutting edges; and d) a femoral neck resector guide, comprising: i) a body having an opening therethrough permitting said body to slide over said outer walls of said proximal portion of said broach; and ii) a ring extending laterally of said body; iii) said ring sized to sit on top of a femoral head of a femur when said distal portion of said broach is placed within an intermedullary canal of said femur.