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METHOD FOR INTERBODY FUSION OF THE SPINE

  • US 3,848,601 A
  • Filed: 06/14/1972
  • Issued: 11/19/1974
  • Est. Priority Date: 06/14/1972
  • Status: Expired due to Term
First Claim
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1. The method of performing interbody fusion of the spine between an upper and lower vertebra and across a section of the disc comprising the steps of:

  • producing a parallelpiped shaped cavity in the spine by;

    employing a thin walled hollow chisel of rectangular cross section having exterior dimensions corresponding to the desired rectangular cross section of the cavity and the hollow also being of rectangular cross section;

    forcing the chisel a desired depth into the spine thereby cutting the sides of the cavity;

    inserting a cylindrical drill bit within the hollow of said chisel and drilling out the greater portion of the tissue defined by the hollow of said chisel and then subsequently removing the remainder of said tissue; and

    removing the drill bit from said hollow;

    inserting into said cavity a bone plug having dimensions equal to the dimensions of said cavity.

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