HTO guide with optional guided ACL/PCL tunnels

  • US 10,282,488 B2
  • Filed: 04/25/2014
  • Issued: 05/07/2019
  • Est. Priority Date: 04/25/2014
  • Status: Active Grant
First Claim
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1. A patient-specific osteotomy guide comprising:

  • a body comprising a three-dimensional bone-engaging inner surface configured to closely mate and conform to a corresponding portion of a specific patient'"'"'s tibia;

    a resection slot extending through the body, the resection slot configured to guide a cutting tool to perform an osteotomy on the tibia; and

    an axial guide configured to guide a tool to perform at least one of an ACL reconstructive procedure and a PCL reconstructive procedure on the tibia, wherein (i) the three-dimensional bone-engaging inner surface is designed preoperatively according to a preoperative plan, such that the bone-engaging inner surface conforms only to the portion of the specific patient'"'"'s tibia, (ii) the resection slot is designed preoperatively according to the preoperative plan, such that a cutting axis of the resection slot extends at a pre-defined patient-specific angle β

    relative to a reference axis extending through the specific patient'"'"'s tibia, the reference axis comprising an anatomical axis coinciding with a long axis of the patient'"'"'s tibia, and (iii) the axial guide defines first and second apertures extending through the body along first and second fixed axes arranged at pre-defined patient-specific angles θ

    1, θ

    2, respectively, relative to the reference axis, the first fixed axis extending through the specific patient'"'"'s tibia and femur along an ACL tunnel path established preoperatively by way of the preoperative plan, and the second fixed axis extending through specific patient'"'"'s tibia and femur along a PCL tunnel path established preoperatively by way of the preoperative plan.

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