Method and apparatus for acetabular reconstruction
First Claim
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1. A method of providing an acetabular prosthesis system to replace at least a portion of an acetabulum of an anatomy, comprising:
- positioning a trial cup relative to a first portion of the anatomy;
positioning a trial cement mantle member in a selected first position relative to the positioned trial cup to replicate a cement mantle portion between an implanted cup and an implanted liner;
positioning a trial liner relative to the trial cement mantle member, wherein the trial cement mantle member is between the trial liner and the positioned trial cup;
holding the trial liner in a first position relative to the trial cement mantle member;
passing a trial liner fixation member through a passage extending through the trial liner;
wherein the trial liner fixation member includes a shank and a head portion, wherein the shank portion extends through the passage and the head portion bears against the trial liner to hold the trial liner in the first position;
removing the positioned trial cement mantle member and the positioned trial cup;
implanting the implantable cup relative to the first portion of the anatomy; and
removing the trial liner and implanting an implantable liner;
wherein implanting an implantable liner includes cementing the trial liner to the implantable cup.
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Accused Products
Abstract
A trial system for a prosthesis is described. The prosthesis can include an acetabular prosthesis generally for implantation in an acetabulum and the surrounding pelvis. The acetabular prosthesis includes an acetabular cup having a substantially concave inner surface and a substantially convex outer surface. One trial shell or a collection of trial shells are provided to trial a range of motion of the hip joint before implanting a shell prosthesis into the acetabular prosthesis.
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Citations
18 Claims
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1. A method of providing an acetabular prosthesis system to replace at least a portion of an acetabulum of an anatomy, comprising:
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positioning a trial cup relative to a first portion of the anatomy; positioning a trial cement mantle member in a selected first position relative to the positioned trial cup to replicate a cement mantle portion between an implanted cup and an implanted liner; positioning a trial liner relative to the trial cement mantle member, wherein the trial cement mantle member is between the trial liner and the positioned trial cup; holding the trial liner in a first position relative to the trial cement mantle member; passing a trial liner fixation member through a passage extending through the trial liner; wherein the trial liner fixation member includes a shank and a head portion, wherein the shank portion extends through the passage and the head portion bears against the trial liner to hold the trial liner in the first position; removing the positioned trial cement mantle member and the positioned trial cup; implanting the implantable cup relative to the first portion of the anatomy; and removing the trial liner and implanting an implantable liner; wherein implanting an implantable liner includes cementing the trial liner to the implantable cup. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of providing an acetabular prosthesis system to replace at least a portion of an acetabulum of an anatomy, comprising:
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providing a trial cup to be positioned relative to a first portion of the anatomy; providing a trial cement mantle member to be positioned within the trial cup to replicate a cement mantle portion between an implanted cup and an implanted liner; providing a trial liner to be positioned within the trial cement mantle member, wherein the trial cement mantle member is to be positioned between the trial liner and the positioned trial cup; providing a trial liner fixation member to hold the trial liner in a first trial liner position relative to the trial cement mantle member; providing the implantable cup to be implanted relative to the anatomy based on the position of the provided trial cup relative to the first portion of the anatomy; and providing an implantable liner to be cemented to the implantable cup at least once the provided implantable cup is implanted; wherein when the trial liner and the trial cement mantle member are positioned relative to the trial cup a second portion of the anatomy is operable to be moved relative to the positioned trial liner and wherein the positioned trial cement mantle member and the positioned trial cup are operable to be removed. - View Dependent Claims (16, 17, 18)
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Specification