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Computer assisted knee arthroplasty instrumentation, systems, and processes

  • US 20030069591A1
  • Filed: 08/27/2002
  • Published: 04/10/2003
  • Est. Priority Date: 02/27/2001
  • Status: Active Grant
First Claim
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1. Apparatus for adjustably positioning surgical instrumentation relative to bone, comprising:

  • a. a structural member adapted to fasten to bone;

    b. instrumentation adapted to guide surgical devices;

    c. an alignment module connecting the structural member and the instrumentation, comprising;

    i. a first member connected to the instrumentation;

    ii. a second member connected to the structural member and connected to the first member in a fashion that allows the second member and the first member to be varied in orientation relative to each other about at least two substantially orthogonal axes;

    iii. adjustment structure for controlling motion of the second member relative to the first member and for fixing the position of the second member relative to the first member; and

    d. a fiducial connected at least indirectly to the instrumentation, which fiducial is capable of being tracked in position and orientation in at least three dimensions by a surgical navigation system.

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