Unicondylar knee implants and insertion methods therefor

a knee implant and unicondylar technology, applied in the field of implants, can solve the problems of limited access to damaged joints, affecting the extent of intrusion required to complete an effective implant,
US20080015600A1Inactive Publication Date: 2008-01-17HOWMEDICA OSTEONICS CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
HOWMEDICA OSTEONICS CORP
Publication Date
2008-01-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method of balancing extension and flexion gaps in a knee joint includes preparing a tibial component seating surface at a proximal end of a tibia, extending the knee joint and measuring an extension gap between the tibial component seating surface and a distal end of a femur, and flexing the knee joint and measuring a flexion gap between the tibial component seating surface and a posterior region of the femur. The extension gap is compared with the flexion gap to determine an amount of bone that is to be removed from the posterior region of the femur for balancing the extension gap with the flexion gap.
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Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] The present application is a continuation of U.S. patent application Ser. No. 11 / 471,931, filed Jun. 21, 2006, the disclosure of which is hereby incorporated by reference herein. The present application is related to U.S. patent application Ser. No. 11 / 504,420, filed Aug. 15, 2006, entitled “Unicondylar Knee Implants and Insertion Methods Therefor” and U.S. patent application Ser. No. 11 / 519,691, filed Sep. 7, 2006, entitled “Unicondylar Knee Implants and Insertion Methods Therefor”, the disclosures of which are hereby incorporated by reference herein.BACKGROUND OF THE INVENTION

[0002] The present invention generally relates to implants and more specifically relates to method and apparatus for preparing bone for receiving an implant.

[0003] The use of prosthetic implants to replace damaged natural joints, or portions of such joints, in the body has become widespread as medical and technological advances have joined to provide improved materia...

Claims

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