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Rotationally and angularly adjustable tibial cutting guide and method of use

  • US 5,275,603 A
  • Filed: 02/20/1992
  • Issued: 01/04/1994
  • Est. Priority Date: 02/20/1992
  • Status: Expired due to Term
First Claim
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1. A cutting guide for ostectomy of the proximal tibial surface during knee surgery comprising:

  • a tibial trial base having a plurality of aligning holes formed therein;

    a guide block having an anterior surface, and opposed proximal and distal surfaces including an axial opening defined along the longitudinal axis of the tibial canal, the guide block being adapted for attachment to said tibial trail base, said tibial trial base having an axial openingmeans for locating the proper degree of rotational alignment of the tibial trial base with respect to the longitudinal axis of the tibia to assure the proper coverage and alignment with the mating femoral component;

    means for guiding a cutting tool for making a wedge-shaped resection of the tibia to accommodate a tibial tray component having a preselected internal distal surface corresponding to that of the resected tibia, the guide means being mounted to the anterior surface of the guide block;

    means for selectively adjusting the angular alignment of the guide means with respect to the lateral-medial axis perpendicular to the longitudinal axis of the tibia;

    means for connecting the guide block to the tibial trail base during resection; and

    a handle having a central axis with opposed proximal and distal ends, the distal end including means for interlocking the guide block to the tibial trial base, the handle remaining fixed to the tibial trial during the resection process, such that the guide means is held in proper alignment with respect to the longitudinal axis without the necessity of intermedullary tibial instrumentation.

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