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Bone plate system for opening wedge proximal tibial osteotomy

  • US 5,620,448 A
  • Filed: 03/24/1995
  • Issued: 04/15/1997
  • Est. Priority Date: 03/24/1995
  • Status: Expired due to Term
First Claim
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1. A method of correcting a deformity by performing an osteotomy in a bone at an osteotomy site using a plurality of bone plates, each bone plate having two ends, a width, a proximal side, and a distal side, the distal side having a projection with a length and a depth, and a tool having a distal end and a proximal end, the distal end including a wedge having a tapered thickness and two prongs, the two prongs being separated by a distance greater than the bone plate width, the method comprising the steps of:

  • (a) forming an incision over the osteotomy site;

    (b) resecting the bone from a first side of the bone to a second side of the bone, leaving a bony hinge on the second side;

    (c) wedging open the resection by inserting the tool to a depth at which the deformity is corrected;

    (d) selecting a bone plate having a projection length equal to the thickness of the tool at the deformity-correcting depth;

    (e) placing the selected bone plate between the two prongs of the tool;

    (f) inserting the projection into the resection opening such that plate spans the resection, the two ends of the plate contacting the first side of the bone;

    (g) securing the two ends of the plate to the bone on the first side of the bone so as to maintain the projection within the resection opening.

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