CA2196696A1 - Asymmetric femoral prosthesis - Google Patents

Asymmetric femoral prosthesis

Info

Publication number
CA2196696A1
CA2196696A1 CA002196696A CA2196696A CA2196696A1 CA 2196696 A1 CA2196696 A1 CA 2196696A1 CA 002196696 A CA002196696 A CA 002196696A CA 2196696 A CA2196696 A CA 2196696A CA 2196696 A1 CA2196696 A1 CA 2196696A1
Authority
CA
Canada
Prior art keywords
articulating surface
femoral
anterior
articulating
surface portions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002196696A
Other languages
French (fr)
Other versions
CA2196696C (en
Inventor
Michael Ries
Brian Schumacher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smith and Nephew Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/285,917 external-priority patent/US5549688A/en
Application filed by Individual filed Critical Individual
Publication of CA2196696A1 publication Critical patent/CA2196696A1/en
Application granted granted Critical
Publication of CA2196696C publication Critical patent/CA2196696C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Prostheses (AREA)

Abstract

A knee prosthesis includes a femoral prosthesis member (60) having anterior (12), distal (15), and posterior (13, 14) articulating surface portions. The articulating surface portions comprising a pair of condylar surface portions (13, 14, 61, 62) that are positioned at differing distances from the non-articulating surface plane. In one form the posterolateral articulating surface is a greater distance away from the anterior non-articulating surface than the posteromedial articulating surface (Figs. 1 and 15). The femoral prosthesis has a non-articulating surface that includes a plurality of intersecting surfaces including at least distal (23, 24), anterior (17, 18), and posterior (20, 21) surfaces for receiving the patient's distal femur after it has been surgically prepared. A
tibial component (50) has concave articulating surfaces that receive the femoral component articulating surface portions during use.
The angle of femoral rotation generally about the mechanical axis generally changes when going through a normal range of motion of the patient's knee while maintaining alignment of the femoral and tibial articular surfaces. The femoral prosthesis also has a proximal anterior region (65) that is concave (Fig. 19). An improved patella groove design is also shown (Figs. 20-24).
CA002196696A 1994-08-04 1995-08-01 Asymmetric femoral prosthesis Expired - Fee Related CA2196696C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/285,917 1994-08-04
US08/285,917 US5549688A (en) 1994-08-04 1994-08-04 Asymmetric femoral prosthesis
PCT/US1995/009705 WO1996003939A1 (en) 1994-08-04 1995-08-01 Asymmetric femoral prosthesis

Publications (2)

Publication Number Publication Date
CA2196696A1 true CA2196696A1 (en) 1996-02-15
CA2196696C CA2196696C (en) 2006-03-28

Family

ID=36123345

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002196696A Expired - Fee Related CA2196696C (en) 1994-08-04 1995-08-01 Asymmetric femoral prosthesis

Country Status (1)

Country Link
CA (1) CA2196696C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017180234A1 (en) * 2016-04-11 2017-10-19 Joint Innovation Technology Llc System for side insertion of a bicondylar mini knee implant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017180234A1 (en) * 2016-04-11 2017-10-19 Joint Innovation Technology Llc System for side insertion of a bicondylar mini knee implant

Also Published As

Publication number Publication date
CA2196696C (en) 2006-03-28

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed