×

Prosthetic hip implantation method and apparatus

  • US 5,607,431 A
  • Filed: 02/09/1995
  • Issued: 03/04/1997
  • Est. Priority Date: 02/09/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for preparing the medullary canal of a femur to receive a prosthetic fernoral implant having proximal and distal stem portions, comprising the steps:

  • providing a template, a gauge, a reamer, a metaphyseal template, a chise and a broach;

    placing the template generally corresponding to the prosthetic hip implant on an x-ray of the femur to determine the level of an osteotomy cut with respect to the sulcus of the femur;

    marking said determined position on the femur using the gauge locating off the sulcus;

    performing the osteotomy by resecting the femur;

    reaming the distal medullary canal to a predetermined depth with the reamer having an elongated shaft and a shape mimicking the shape of the distal stem portion of the prosthetic femoral implant;

    placing the metaphyseal template on said elongated shaft to determine a proper anteversion/retroversion orientation thereof;

    locking said metaphyseal template in place upon determining said proper anteversion/retroversion orientation;

    placing the chisel having a shape generally corresponding to a lateral portion of the fernoral implant at a proper alignment on said metaphyseal template and removing bone at the osteotomy level to form the proper lateral opening in said canal;

    removing said template and said chisel; and

    placing the proximal broach over said elongated shaft of said reamer and shaping the proximal portion of said cavity with a broach having a shape generally conforming to the proximal portion of said implant.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×