Modular trial hip replacement system

A two-piece trial femoral component for use in selecting a prosthetic femoral component and sizing and preparing a femoral cavity prior to implantation of the selected prosthetic implant comprising:

• a trial stem portion;
• a trial body portion removably connected to said stem portion, said trial body portion having two generally perpendicular resection guide surfaces thereon with one of said two generally perpendicular guide surfaces being aligned in a plane transverse to the femoral cavity in the area of the femoral neck and a second of said guide surfaces extending proximally from said first guide surface;
• and
• selectively releasable means for securing said removable trial body portion to said trial stem portion.

A multi-piece trial femoral component kit for use in selecting a prosthetic femoral component and preparing and sizing a femoral cavity prior to implantation of a prosthetic femoral component chosen from a limited number of prosthetic femoral components, the trial component kit comprising:

• at least three trial stem portions of different size;
• at least three trial body portions of different size, said body portions each having two generally perpendicular resection guide surfaces thereon with one of said two generally perpendicular guide surfaces being aligned in a plane transverse to the femoral cavity in the area of the femoral neck and a second of said guide surfaces extending proximally from said first guide surface;
• and
• means for coupling said trial body portions to said trial stem portion, said means for coupling including a means for allowing at least one stem portion of said at least three stem portions to couple with at least two body portions of said at least three body portions.