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Method and apparatus for positioning a multiple piece prosthesis

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20130030538 patent thumbnailZoom

Method and apparatus for positioning a multiple piece prosthesis


A method and apparatus for positioning an implant system in anatomy is disclosed. The apparatus can include an alignment member operable to contact an implant portion, a bone, or other appropriate portion. The method can include using the apparatus to assist in positioning a single or multi-piece implant member. Also, a method of aligning a first implant position relative to another implant position is disclosed.
Related Terms: Implant Prosthesis Lignin

USPTO Applicaton #: #20130030538 - Class: 623 203 (USPTO) - 01/31/13 - Class 623 
Prosthesis (i.e., Artificial Body Members), Parts Thereof, Or Aids And Accessories Therefor > Implantable Prosthesis >Bone >Joint Bone >Knee Joint Bone >Having Member Secured To Femoral And Tibial Bones >Unicondylar

Inventors: Robert Metzger, Duke A. Fox

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The Patent Description & Claims data below is from USPTO Patent Application 20130030538, Method and apparatus for positioning a multiple piece prosthesis.

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CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a divisional of U.S. patent application Ser. No. 11/444,270 filed on May 31, 2006. The disclosure of the above application is incorporated herein by reference.

FIELD

A method and apparatus for performing an orthopedic procedure, specifically a method and apparatus for performing an arthroplasty including preparing two portions of a bone.

BACKGROUND

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

An anatomy, such as a human anatomy, includes various portions that are operable to move relative to one another. A joint generally allows for two portions, such as bony portions, to move relative to one another. For example, a knee joint is generally formed between the femur and the tibia and also articulation of the femur and the tibia at a selected location. For various reasons, such as disease, age, injury or the like, the various articulating regions may no longer be able to perform the anatomical action of the smooth and pain-free articulation. It may be selected, if possible, to replace the portions of the anatomy with a prosthesis. Prostheses, such as those generally known in the art, vary widely in their construction, method of implantation, and the like.

Generally, a total knee arthroplasty (TKA) requires a replacement of the entire articulation or condylar portion of the femur and the entire articulation region of the tibia. Generally, a single element replaces each of the articulating portions of the femur. Nevertheless, it may be desirable to replace only selected portions of the femur, such as the medial and lateral condyles that articulate with the tibia. It may be desirable to maintain the remaining portions of the femur for various purposes, such as bone retention, cartilage retention, or the like. Therefore, it may be desirable to provide a method and apparatus for positioning and implanting a plurality of articulating elements to articulate with a selected portion of the anatomy.

It can also be desirable to provide an implant system that allows for performing more than a single cut or resection on a selected bone based upon or aligned relative to a first cut or resection on a bone. The system may allow for positioning a substantially single piece implant relative to the cut bone surface once the one or more cuts are made. Therefore, a system that allows for forming multiple cuts on a single bone aligned relative to a first cut may be desirable.

SUMMARY

A method and apparatus for positioning and implanting a prosthesis relative to a joint is disclosed. The apparatus can be any appropriate apparatus that can allow for aligning a first portion of the anatomy with a second portion of the anatomy to allow for positioning the prosthesis relative to the anatomy. Generally, the various portions of the anatomy can be aligned for resection, such as aligning a first resected portion relative to a second resected portion to achieve a result. Alternatively, a first implant member can be aligned relative to a second implant member to achieve a selected result. This can allow various implant members to not be interconnected in a fixed manner, either during or after the implantation procedure. An implant, however, can be formed as a single piece.

According to various embodiments a system for positioning a prosthesis is disclosed. The system can include a first alignment portion and a second alignment portion. An adjustment mechanism can be provided to interconnect with at least one of the first alignment portion, the second alignment portion, or combinations thereof. Also, a manipulation member can extend from at least one of the first alignment portion, the second alignment portion, or combinations thereof. At least one of the first alignment portion or the second alignment portion is adjustable relative to the other of the first alignment portion or the second alignment portion to assist in determining a position of the first alignment portion to the second alignment portion.

According to various embodiments a method of positioning a prosthesis member on a single bone in a joint of an anatomy is disclosed. The method can include obtaining access to the joint. A first prosthesis member can be positioned on a first portion of the single bone and a position of a resection on a second portion of the single bone can be determined or obtained. The resection on the second portion of the single bone and a second prosthesis member can be positioned on the single bone.

According to various embodiments a method of positioning a prosthesis member on a single bone in a joint in an anatomy is disclosed. The method can include obtaining access to the joint and performing a first resection on a first portion of the single bone at a first location. A position of a second resection on a second portion of the single bone can be obtained or determined and a second resection based upon the obtained position can be performed. A single piece prosthesis member or a multiple piece prosthesis assembly can be installed on the single bone.

According to various embodiments a method of positioning a prosthesis member on a single bone in a joint in an anatomy is disclosed. The method can include obtaining access to the joint and performing a first resection on a first portion of the single bone. A first prosthesis member can be positioned relative to the single bone near the first portion. A position of a second resection on a second portion of the single bone can be determined based at least in part on a position of the first prosthesis member after it is positioned and the second resection can be formed on the single bone.

Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and various examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

DRAWINGS

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way.

FIG. 1 is a perspective view of an alignment device according to various embodiments;

FIG. 2 is a perspective view of an assembled alignment device according to various embodiments;

FIG. 3 is a perspective view of an implant system according to various embodiments;

FIG. 4 is a perspective view of a portion of an anatomy;

FIG. 5 is a perspective view of an environmental view of an alignment device in use according to various embodiments;



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Previous Patent Application:
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Next Patent Application:
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Industry Class:
Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
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stats Patent Info
Application #
US 20130030538 A1
Publish Date
01/31/2013
Document #
13625304
File Date
09/24/2012
USPTO Class
623 203
Other USPTO Classes
623 2014
International Class
61F2/38
Drawings
6


Implant
Prosthesis
Lignin


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