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Method and apparatus for acetabular reconstruction

  • US 7,291,177 B2
  • Filed: 07/23/2002
  • Issued: 11/06/2007
  • Est. Priority Date: 02/23/2001
  • Status: Expired due to Term
First Claim
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1. An acetabular prosthesis system to replace an acetabulum that allows trialing for a shell component, comprising:

  • an acetabular prosthesis defining an attachment portion including a thread;

    a trial shell defining an orientation portion and operable to be selectively oriented relative to said acetabular prosthesis in at least two degrees of freedom including a first degree of freedom that is rotationally around an axis and a second degree of freedom that is along a guide portion relative to said axis; and

    a connection mechanism to selectively fix said trial shell relative to said acetabular prosthesis, including a member having an attachment end and an engagement end;

    wherein said attachment end of said member operably engages said attachment portion; and

    wherein said engagement end operably engages said orientation portion;

    wherein said member operably interconnects said trial shell and said acetabular prosthesis to create a plurality of determined orientations including at least one trial orientation by being selectively fixed in the at least one trial orientation relative to said acetabular prosthesis;

    wherein said member includes a screw having a threaded shank and a head portion;

    wherein said threaded shank and said attachment portion cooperate to draw said head portion against said trial shell such that said head portion applies a force to fix said trial shell in one of the determined orientations.

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