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Joint arthroplasty devices and surgical tools

DC
  • US 8,377,129 B2
  • Filed: 10/27/2009
  • Issued: 02/19/2013
  • Est. Priority Date: 05/25/2001
  • Status: Expired due to Term
First Claim
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1. A patient-specific instrument system for surgery of a diseased or damaged knee joint of a patient, the instrument system comprising:

  • a patient-specific surface for engaging at least a portion of a substantially uncut joint surface of the diseased or damaged knee joint of the patient, the patient-specific surface including cartilage information derived from image data of the diseased or damaged knee joint of the patient; and

    a guide for directing a surgical instrument, wherein the guide has a predetermined position relative to the patient-specific surface and relative to from at least one of an anatomical axis and a biomechanical axis associated with said knee joint;

    wherein the guide defines a drilling path through at least a portion of the knee joint, the drilling path having a position based on a predetermined internal rotation angle or external rotation angle of an orthopedic implant.

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